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Mahazabin M, Tabassum N, Syfullah SK, Majumder UK, Islam MA. Socio-demographic factors affecting the first and second dose of measles vaccination status among under-five children: Perspectives from South Asian countries. Prev Med Rep 2024; 45:102839. [PMID: 39188972 PMCID: PMC11345404 DOI: 10.1016/j.pmedr.2024.102839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 07/24/2024] [Accepted: 07/25/2024] [Indexed: 08/28/2024] Open
Abstract
Background The measles vaccine is crucial in preventing fatalities and reducing widespread childhood infections worldwide, yet achieving the desired immunization rates remains a challenge in developing countries. Our study aims to identify the impact of socio-demographic factors on measles vaccination among children in South Asian countries. Methods Participants (89513) were taken from the most recent Demographic and Health Survey (DHS) datasets of South Asian countries between 2015 and 2021. Descriptive statistics and multivariable analyses were employed to find out the factors associated with measles vaccination among South Asian countries. Results Our study found that the first dose of vaccinated children was 51.7 % in Afghanistan which is the lowest among South Asian countries. The key determinants related to two doses of measles vaccination include parental characteristics, media access, and antenatal care (ANC). Mothers who had done baby postnatal checkups (AOR = 1.22, CI = 1.17-1.26) and made more than four ANC (AOR = 1.77, CI: 1.65-1.89) were more likely to fully immunize their child than mothers with no postnatal and antenatal checkups. Conclusion The complete dose of measles vaccination rate in South Asia is still low compared to the first dose of measles vaccination among children. The government and stakeholders should organize frequent awareness programs through media and health personnel to inform people about routine vaccinations to eliminate measles.
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Affiliation(s)
- Maliha Mahazabin
- Statistics Discipline, Science Engineering and Technology School, Khulna University, Khulna 9208, Bangladesh
| | - Nazia Tabassum
- Statistics Discipline, Science Engineering and Technology School, Khulna University, Khulna 9208, Bangladesh
| | - S.M. Khalid Syfullah
- Statistics Discipline, Science Engineering and Technology School, Khulna University, Khulna 9208, Bangladesh
| | - Uttam Kumar Majumder
- Statistics Discipline, Science Engineering and Technology School, Khulna University, Khulna 9208, Bangladesh
| | - Md. Akhtarul Islam
- Statistics Discipline, Science Engineering and Technology School, Khulna University, Khulna 9208, Bangladesh
- Collaborative Biostatistics Program, School of Public Health, University of Saskatchewan, Saskatoon, Canada
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Naghavi M, Mestrovic T, Gray A, Gershberg Hayoon A, Swetschinski LR, Robles Aguilar G, Davis Weaver N, Ikuta KS, Chung E, Wool EE, Han C, Araki DT, Albertson SB, Bender R, Bertolacci G, Browne AJ, Cooper BS, Cunningham MW, Dolecek C, Doxey M, Dunachie SJ, Ghoba S, Haines-Woodhouse G, Hay SI, Hsu RL, Iregbu KC, Kyu HH, Ledesma JR, Ma J, Moore CE, Mosser JF, Mougin V, Naghavi P, Novotney A, Rosenthal VD, Sartorius B, Stergachis A, Troeger C, Vongpradith A, Walters MK, Wunrow HY, Murray CJL. Global burden associated with 85 pathogens in 2019: a systematic analysis for the Global Burden of Disease Study 2019. THE LANCET. INFECTIOUS DISEASES 2024; 24:868-895. [PMID: 38640940 PMCID: PMC11269650 DOI: 10.1016/s1473-3099(24)00158-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 04/21/2024]
Abstract
BACKGROUND Despite a global epidemiological transition towards increased burden of non-communicable diseases, communicable diseases continue to cause substantial morbidity and mortality worldwide. Understanding the burden of a wide range of infectious diseases, and its variation by geography and age, is pivotal to research priority setting and resource mobilisation globally. METHODS We estimated disability-adjusted life-years (DALYs) associated with 85 pathogens in 2019, globally, regionally, and for 204 countries and territories. The term pathogen included causative agents, pathogen groups, infectious conditions, and aggregate categories. We applied a novel methodological approach to account for underlying, immediate, and intermediate causes of death, which counted every death for which a pathogen had a role in the pathway to death. We refer to this measure as the burden associated with infection, which was estimated by combining different sources of information. To compare the burden among all pathogens, we used pathogen-specific ratios to incorporate the burden of immediate and intermediate causes of death for pathogens modelled previously by the GBD. We created the ratios by using multiple cause of death data, hospital discharge data, linkage data, and minimally invasive tissue sampling data to estimate the fraction of deaths coming from the pathway to death chain. We multiplied the pathogen-specific ratios by age-specific years of life lost (YLLs), calculated with GBD 2019 methods, and then added the adjusted YLLs to age-specific years lived with disability (YLDs) from GBD 2019 to produce adjusted DALYs to account for deaths in the chain. We used standard GBD methods to calculate 95% uncertainty intervals (UIs) for final estimates of DALYs by taking the 2·5th and 97·5th percentiles across 1000 posterior draws for each quantity of interest. We provided burden estimates pertaining to all ages and specifically to the under 5 years age group. FINDINGS Globally in 2019, an estimated 704 million (95% UI 610-820) DALYs were associated with 85 different pathogens, including 309 million (250-377; 43·9% of the burden) in children younger than 5 years. This burden accounted for 27·7% (and 65·5% in those younger than 5 years) of the previously reported total DALYs from all causes in 2019. Comparing super-regions, considerable differences were observed in the estimated pathogen-associated burdens in relation to DALYs from all causes, with the highest burden observed in sub-Saharan Africa (314 million [270-368] DALYs; 61·5% of total regional burden) and the lowest in the high-income super-region (31·8 million [25·4-40·1] DALYs; 9·8%). Three leading pathogens were responsible for more than 50 million DALYs each in 2019: tuberculosis (65·1 million [59·0-71·2]), malaria (53·6 million [27·0-91·3]), and HIV or AIDS (52·1 million [46·6-60·9]). Malaria was the leading pathogen for DALYs in children younger than 5 years (37·2 million [17·8-64·2]). We also observed substantial burden associated with previously less recognised pathogens, including Staphylococcus aureus and specific Gram-negative bacterial species (ie, Klebsiella pneumoniae, Escherichia coli, Pseudomonas aeruginosa, Acinetobacter baumannii, and Helicobacter pylori). Conversely, some pathogens had a burden that was smaller than anticipated. INTERPRETATION Our detailed breakdown of DALYs associated with a comprehensive list of pathogens on a global, regional, and country level has revealed the magnitude of the problem and helps to indicate where research funding mismatch might exist. Given the disproportionate impact of infection on low-income and middle-income countries, an essential next step is for countries and relevant stakeholders to address these gaps by making targeted investments. FUNDING Bill & Melinda Gates Foundation, Wellcome Trust, and Department of Health and Social Care using UK aid funding managed by the Fleming Fund.
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Tesfaye L, Forzy T, Getnet F, Misganaw A, Woldekidan MA, Wolde AA, Warkaye S, Gelaw SK, Memirie ST, Berheto TM, Worku A, Sato R, Hendrix N, Tadesse MZ, Tefera YL, Hailu M, Verguet S. Estimating immunization coverage at the district level: A case study of measles and diphtheria-pertussis-tetanus-Hib-HepB vaccines in Ethiopia. PLOS GLOBAL PUBLIC HEALTH 2024; 4:e0003404. [PMID: 39052537 PMCID: PMC11271922 DOI: 10.1371/journal.pgph.0003404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 06/05/2024] [Indexed: 07/27/2024]
Abstract
Ethiopia has made significant progress in the last two decades in improving the availability and coverage of essential maternal and child health services including childhood immunizations. As Ethiopia keeps momentum towards achieving national immunization goals, methods must be developed to analyze routinely collected health facility data and generate localized coverage estimates. This study leverages the District Health Information Software (DHIS2) platform to estimate immunization coverage for the first dose of measles vaccine (MCV1) and the third dose of diphtheria-pertussis-tetanus-Hib-HepB vaccine (Penta3) across Ethiopian districts ("woredas"). Monthly reported numbers of administered MCV1 and Penta3 immunizations were extracted from public facilities from DHIS2 for 2017/2018-2021/2022 and corrected for quality based on completeness and consistency across time and districts. We then utilized three sources for the target population (infants) to compute administrative coverage estimates: Central Statistical Agency, DHIS2, and WorldPop. The Ethiopian Demographic and Health Surveys were used as benchmarks to which administrative estimates were adjusted at the regional level. Administrative vaccine coverage was estimated for all woredas, and, after adjustments, was bounded within 0-100%. In regions with the highest immunization coverage, MCV1 coverage would range from 83 to 100% and Penta3 coverage from 88 to 100% (Addis Ababa, 2021/2022); MCV1 from 8 to 100% and Penta3 from 4 to 100% (Tigray, 2019/2020). Nationally, the Gini index for MCV1 was 0.37, from 0.13 (Harari) to 0.37 (Somali); for Penta3, it was 0.36, from 0.16 (Harari) to 0.36 (Somali). The use of routine health information systems, such as DHIS2, combined with household surveys permits the generation of local health services coverage estimates. This enables the design of tailored health policies with the capacity to measure progress towards achieving national targets, especially in terms of inequality reductions.
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Affiliation(s)
- Latera Tesfaye
- National Data Management Center for Health, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Tom Forzy
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
- Department of Mathematics, Eidgenössische Technische Hochschule (ETH), Zürich, Switzerland
| | - Fentabil Getnet
- National Data Management Center for Health, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - Awoke Misganaw
- National Data Management Center for Health, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
- Department of Health Metrics Sciences, University of Washington, Seattle, Washington, United States of America
| | - Mesfin Agachew Woldekidan
- National Data Management Center for Health, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Asrat Arja Wolde
- National Data Management Center for Health, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Samson Warkaye
- National Data Management Center for Health, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Solomon Kassahun Gelaw
- Policy, Planning, Monitoring, and Evaluation Directorate, Federal Ministry of Health, Addis Ababa, Ethiopia
| | - Solomon Tessema Memirie
- Addis Center for Ethics and Priority Setting, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Tezera Moshago Berheto
- National Data Management Center for Health, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Asnake Worku
- National Data Management Center for Health, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Ryoko Sato
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - Nathaniel Hendrix
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | | | - Yohannes Lakew Tefera
- Maternal, Child & Nutrition Directorate, Federal Ministry of Health, Addis Ababa, Ethiopia
| | - Mesay Hailu
- Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Stéphane Verguet
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
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Rosenfeld KA, Frey K, McCarthy KA. Optimal Timing Regularly Outperforms Higher Coverage in Preventative Measles Supplementary Immunization Campaigns. Vaccines (Basel) 2024; 12:820. [PMID: 39066459 PMCID: PMC11281443 DOI: 10.3390/vaccines12070820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/03/2024] [Accepted: 06/27/2024] [Indexed: 07/28/2024] Open
Abstract
Measles threatens the lives and livelihoods of tens of millions of children and there are countries where routine immunization systems miss enough individuals to create the risk of large outbreaks. To help address this threat, measles supplementary immunization activities are time-limited, coordinated campaigns to immunize en masse a target population. Timing campaigns to be concurrent with building outbreak risk is an important consideration, but current programmatic standards focus on campaigns achieving a high coverage of at least 95%. We show that there is a dramatic trade-off between campaign timeliness and coverage. Optimal timing at coverages as low as 50% for areas with weak routine immunization systems is shown to outperform the current standard, which is delayed by as little as 6 months. Measured coverage alone is revealed as a potentially misleading performance metric.
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Affiliation(s)
- Katherine A. Rosenfeld
- Institute for Disease Modeling, Bill and Melinda Gates Foundation, Seattle, WA 98109, USA
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Crowcroft NS, Minta AA, Bolotin S, Cernuschi T, Ariyarajah A, Antoni S, Mulders MN, Bose AS, O’Connor PM. The Problem with Delaying Measles Elimination. Vaccines (Basel) 2024; 12:813. [PMID: 39066457 PMCID: PMC11281398 DOI: 10.3390/vaccines12070813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/02/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024] Open
Abstract
Measles is a highly infectious disease leading to high morbidity and mortality impacting people's lives and economies across the globe. The measles vaccine saves more lives than any other vaccine in the Essential Programme of Immunization and is also the most cost-effective vaccine, with an extremely high return on investment. This makes achieving measles elimination through vaccination a key child health intervention, particularly in low-income countries, where the overwhelming majority of measles deaths continue to occur. All countries and regions of the world have committed to achieving measles elimination, yet many have faced challenges securing political commitment at national and global levels and predictable, timely, and flexible support from global donors, and experienced setbacks during the COVID-19 pandemic. This has happened against a backdrop of stagnant measles vaccination coverage and declining enthusiasm for vertical programmes, culminating in a World Health Organization Strategic Advisory Group of Experts (WHO SAGE) review of the feasibility of measles eradication in 2019. Sustaining the elimination of measles long term is extremely difficult, and some countries have lost or nearly lost their measles elimination status in the face of ongoing importation of cases from neighbouring or closely connected countries in which elimination had been delayed. Thus, a widening equity gap in measles immunisation coverage creates challenges for all countries, not just those facing the greatest burden of measles morbidity and mortality. Delaying elimination of measles in some countries makes it cumulatively harder for all countries to succeed for three principal reasons: increased inequity in measles immunisation coverage makes outbreaks more likely to happen and to be larger; political will is very difficult to sustain; and immunity may wane to a point that transmission is re-established. New strategies are needed to support countries and regions in their vision for a world without measles, including ways to galvanise domestic, regional and global resources and ignite the political will that is essential to make the vision a reality.
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Affiliation(s)
- Natasha S. Crowcroft
- Immunization, Vaccines and Biologicals, World Health Organization, 1211 Geneva, Switzerland (M.N.M.); (A.S.B.)
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5S 3H2, Canada
- Centre for Vaccine Preventable Diseases, University of Toronto, Toronto, ON M5S 3H2, Canada
| | - Anna A. Minta
- Immunization, Vaccines and Biologicals, World Health Organization, 1211 Geneva, Switzerland (M.N.M.); (A.S.B.)
| | - Shelly Bolotin
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5S 3H2, Canada
- Centre for Vaccine Preventable Diseases, University of Toronto, Toronto, ON M5S 3H2, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 3H2, Canada
- Public Health Ontario, Toronto, ON M5G 1V2, Canada
| | - Tania Cernuschi
- Immunization, Vaccines and Biologicals, World Health Organization, 1211 Geneva, Switzerland (M.N.M.); (A.S.B.)
| | - Archchun Ariyarajah
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5S 3H2, Canada
- Centre for Vaccine Preventable Diseases, University of Toronto, Toronto, ON M5S 3H2, Canada
- ICES, Toronto, ON M4N 3M5, Canada
| | - Sébastien Antoni
- Immunization, Vaccines and Biologicals, World Health Organization, 1211 Geneva, Switzerland (M.N.M.); (A.S.B.)
| | - Mick N. Mulders
- Immunization, Vaccines and Biologicals, World Health Organization, 1211 Geneva, Switzerland (M.N.M.); (A.S.B.)
| | - Anindya S. Bose
- Immunization, Vaccines and Biologicals, World Health Organization, 1211 Geneva, Switzerland (M.N.M.); (A.S.B.)
| | - Patrick M. O’Connor
- Immunization, Vaccines and Biologicals, World Health Organization, 1211 Geneva, Switzerland (M.N.M.); (A.S.B.)
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Kumagai N, Jakovljević M. Random forest model used to predict the medical out-of-pocket costs of hypertensive patients. Front Public Health 2024; 12:1382354. [PMID: 39086805 PMCID: PMC11288809 DOI: 10.3389/fpubh.2024.1382354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 06/28/2024] [Indexed: 08/02/2024] Open
Abstract
Background Precise prediction of out-of-pocket (OOP) costs to improve health policy design is important for governments of countries with national health insurance. Controlling the medical expenses for hypertension, one of the leading causes of stroke and ischemic heart disease, is an important issue for the Japanese government. This study aims to explore the importance of OOP costs for outpatients with hypertension. Methods To obtain a precise prediction of the highest quartile group of OOP costs of hypertensive outpatients, we used nationwide longitudinal data, and estimated a random forest (RF) model focusing on complications with other lifestyle-related diseases and the nonlinearities of the data. Results The results of the RF models showed that the prediction accuracy of OOP costs for hypertensive patients without activities of daily living (ADL) difficulties was slightly better than that for all hypertensive patients who continued physician visits during the past two consecutive years. Important variables of the highest quartile of OOP costs were age, diabetes or lipidemia, lack of habitual exercise, and moderate or vigorous regular exercise. Conclusion As preventing complications of diabetes or lipidemia is important for reducing OOP costs in outpatients with hypertension, regular exercise of moderate or vigorous intensity is recommended for hypertensive patients that do not have ADL difficulty. For hypertensive patients with ADL difficulty, habitual exercise is not recommended.
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Affiliation(s)
| | - Mihajlo Jakovljević
- UNESCO-TWAS, Section of Social and Economic Sciences, Trieste, Italy
- Shaanxi University of Technology, Hanzhong, China
- Department of Global Health Economics and Policy, University of Kragujevac, Kragujevac, Serbia
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Solomon K, Aksnes BN, Woyessa AB, Geri C, Matanock AM, Shah MP, Samuel P, Tolera B, Kenate B, Bekele A, Deti T, Wako G, Shiferaw A, Tefera YL, Kokebie MA, Anbessie TB, Wubie HT, Wallace A, Sugerman CE, Kaba M. Qualitative Insights on Barriers to Receiving a Second Dose of Measles-Containing Vaccine (MCV2), Oromia Region of Ethiopia. Vaccines (Basel) 2024; 12:702. [PMID: 39066340 PMCID: PMC11281509 DOI: 10.3390/vaccines12070702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 06/11/2024] [Accepted: 06/18/2024] [Indexed: 07/28/2024] Open
Abstract
Introduction: Ethiopia introduced a second dose of measles-containing vaccine (MCV2) in 2019 to provide further protection against measles and further progress toward elimination. However, the sub-optimal coverage of both MCV1 and MCV2 suggest challenges with vaccine uptake. In this qualitative study, we explored barriers to the uptake of MCV2 among caregivers, community leaders, and healthcare workers (HCWs). Method: A qualitative study was conducted between mid-April and mid-May 2021. We selected ten woredas (districts) in the Oromia Region, Ethiopia, stratified by settlement type (urban/rural), MCV1 coverage (high ≥ 80%; low < 80%), and history of measles outbreaks between June 2019 and June 2020. Experiences surrounding barriers to MCV2 uptake were discussed via focus group discussions (FGDs) and in-depth interviews (IDIs) with caregivers of children 12-23 and 24-36 months and key informant interviews (KIIs) with HCWs who administer vaccines and with community leaders. Participants were recruited via snowball sampling. Recorded data were transcribed, translated to English, and analyzed using ATLAS.ti v.09. Results: Forty FGDs and 60 IDIs with caregivers, 60 IDIs with HCWs, and 30 KIIs with community leaders were conducted. Barriers among caregivers included lack of knowledge and awareness about MCV2 and the vaccination schedule, competing priorities, long wait times at health facilities, vaccine unavailability, negative interactions with HCWs, and transportation challenges. At the community level, trusted leaders felt they lacked adequate knowledge about MCV2 to address caretakers' questions and community misconceptions. HCWs felt additional training on MCV2 would prepare them to better respond to caretakers' concerns. Health system barriers identified included the lack of human, material, and financial resources to deliver vaccines and provide immunization outreach services, which caretakers reported as their preferred way of accessing immunization. Conclusions: Barriers to MCV2 uptake occur at multiple levels of immunization service delivery. Strategies to address these barriers include tools to help caretakers track appointments, enhanced community engagement, HCW training to improve provider-client interactions and MCV2 knowledge, and efforts to manage HCW workload.
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Affiliation(s)
- Kalkidan Solomon
- Department of Preventive Medicine, School of Public Health, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia;
| | - Brooke N. Aksnes
- Global Immunization Division, Centers for Disease Control and Prevention, Atlanta, GA 30329, USA; (B.N.A.); (A.M.M.); (M.P.S.); (A.W.); (C.E.S.)
| | - Abyot Bekele Woyessa
- Oromia Regional Health Bureau, Addis Ababa, Ethiopia; (A.B.W.); (P.S.); (B.T.); (T.D.)
| | - Chala Geri
- Ministry of Health of Ethiopia, Addis Ababa, Ethiopia; (C.G.); (Y.L.T.); (M.A.K.)
| | - Almea M. Matanock
- Global Immunization Division, Centers for Disease Control and Prevention, Atlanta, GA 30329, USA; (B.N.A.); (A.M.M.); (M.P.S.); (A.W.); (C.E.S.)
- Global Immunization Division, CDC-Ethiopia, Addis Ababa, Ethiopia
| | - Monica P. Shah
- Global Immunization Division, Centers for Disease Control and Prevention, Atlanta, GA 30329, USA; (B.N.A.); (A.M.M.); (M.P.S.); (A.W.); (C.E.S.)
| | - Paulos Samuel
- Oromia Regional Health Bureau, Addis Ababa, Ethiopia; (A.B.W.); (P.S.); (B.T.); (T.D.)
| | - Bekana Tolera
- Oromia Regional Health Bureau, Addis Ababa, Ethiopia; (A.B.W.); (P.S.); (B.T.); (T.D.)
| | - Birhanu Kenate
- Oromia Regional Health Bureau, Addis Ababa, Ethiopia; (A.B.W.); (P.S.); (B.T.); (T.D.)
| | - Abebe Bekele
- Oromia Regional Health Bureau, Addis Ababa, Ethiopia; (A.B.W.); (P.S.); (B.T.); (T.D.)
| | - Tesfaye Deti
- Oromia Regional Health Bureau, Addis Ababa, Ethiopia; (A.B.W.); (P.S.); (B.T.); (T.D.)
| | - Getachew Wako
- United Nations International Children’s Emergency Fund, Addis Ababa, Ethiopia; (G.W.); (A.S.)
| | - Amsalu Shiferaw
- United Nations International Children’s Emergency Fund, Addis Ababa, Ethiopia; (G.W.); (A.S.)
| | | | | | | | | | - Aaron Wallace
- Global Immunization Division, Centers for Disease Control and Prevention, Atlanta, GA 30329, USA; (B.N.A.); (A.M.M.); (M.P.S.); (A.W.); (C.E.S.)
| | - Ciara E. Sugerman
- Global Immunization Division, Centers for Disease Control and Prevention, Atlanta, GA 30329, USA; (B.N.A.); (A.M.M.); (M.P.S.); (A.W.); (C.E.S.)
| | - Mirgissa Kaba
- Department of Preventive Medicine, School of Public Health, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia;
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Santos TM, Cata-Preta BO, Wendt A, Arroyave L, Blumenberg C, Mengistu T, Hogan DR, Victora CG, Barros AJD. Exploring the "Urban Advantage" in Access to Immunization Services: A Comparison of Zero-Dose Prevalence Between Rural, and Poor and Non-poor Urban Households Across 97 Low- and Middle-Income Countries. J Urban Health 2024; 101:638-647. [PMID: 38767765 PMCID: PMC11189869 DOI: 10.1007/s11524-024-00859-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/18/2024] [Indexed: 05/22/2024]
Abstract
Urban children are more likely to be vaccinated than rural children, but that advantage is not evenly distributed. Children living in poor urban areas face unique challenges, living far from health facilities and with lower-quality health services, which can impact their access to life-saving vaccines. Our goal was to compare the prevalence of zero-dose children in poor and non-poor urban and rural areas of low- and middle-income countries (LMICs). Zero-dose children were those who failed to receive any dose of a diphtheria-pertussis-tetanus (DPT) containing vaccine. We used data from nationally representative household surveys of 97 LMICs to investigate 201,283 children aged 12-23 months. The pooled prevalence of zero-dose children was 6.5% among the urban non-poor, 12.6% for the urban poor, and 14.7% for the rural areas. There were significant differences between these areas in 43 countries. In most of these countries, the non-poor urban children were at an advantage compared to the urban poor, who were still better off or similar to rural children. Our results emphasize the inequalities between urban and rural areas, but also within urban areas, highlighting the challenges faced by poor urban and rural children. Outreach programs and community interventions that can reach poor urban and rural communities-along with strengthening of current vaccination programs and services-are important steps to reduce inequalities and ensure that no child is left unvaccinated.
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Affiliation(s)
- Thiago M Santos
- International Center for Equity in Health, Federal University of Pelotas, Rua Deodoro 1160, Pelotas, RS, 96020-220, Brazil.
| | - Bianca O Cata-Preta
- International Center for Equity in Health, Federal University of Pelotas, Rua Deodoro 1160, Pelotas, RS, 96020-220, Brazil
- Universidade Federal Do Paraná, Rua Padre Camargo, 280, Curitiba, PR, 80060-240, Brazil
| | - Andrea Wendt
- International Center for Equity in Health, Federal University of Pelotas, Rua Deodoro 1160, Pelotas, RS, 96020-220, Brazil
- Programa de Pós-Graduação Em Tecnologia Em Saúde, Pontifícia Universidade Católica Do Paraná, Rua Imaculada Conceição 1155, Curitiba, PR, 80215-901, Brazil
| | - Luisa Arroyave
- International Center for Equity in Health, Federal University of Pelotas, Rua Deodoro 1160, Pelotas, RS, 96020-220, Brazil
| | - Cauane Blumenberg
- International Center for Equity in Health, Federal University of Pelotas, Rua Deodoro 1160, Pelotas, RS, 96020-220, Brazil
| | - Tewodaj Mengistu
- Gavi, the Vaccine Alliance, Chemin du Pommier 40, 1218, Geneva, Switzerland
| | - Daniel R Hogan
- Gavi, the Vaccine Alliance, Chemin du Pommier 40, 1218, Geneva, Switzerland
| | - Cesar G Victora
- International Center for Equity in Health, Federal University of Pelotas, Rua Deodoro 1160, Pelotas, RS, 96020-220, Brazil
| | - Aluisio J D Barros
- International Center for Equity in Health, Federal University of Pelotas, Rua Deodoro 1160, Pelotas, RS, 96020-220, Brazil
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Naghavi M, Ong KL, Aali A, Ababneh HS, Abate YH, Abbafati C, Abbasgholizadeh R, Abbasian M, Abbasi-Kangevari M, Abbastabar H, Abd ElHafeez S, Abdelmasseh M, Abd-Elsalam S, Abdelwahab A, Abdollahi M, Abdollahifar MA, Abdoun M, Abdulah DM, Abdullahi A, Abebe M, Abebe SS, Abedi A, Abegaz KH, Abhilash ES, Abidi H, Abiodun O, Aboagye RG, Abolhassani H, Abolmaali M, Abouzid M, Aboye GB, Abreu LG, Abrha WA, Abtahi D, Abu Rumeileh S, Abualruz H, Abubakar B, Abu-Gharbieh E, Abu-Rmeileh NME, Aburuz S, Abu-Zaid A, Accrombessi MMK, Adal TG, Adamu AA, Addo IY, Addolorato G, Adebiyi AO, Adekanmbi V, Adepoju AV, Adetunji CO, Adetunji JB, Adeyeoluwa TE, Adeyinka DA, Adeyomoye OI, Admass BAA, Adnani QES, Adra S, Afolabi AA, Afzal MS, Afzal S, Agampodi SB, Agasthi P, Aggarwal M, Aghamiri S, Agide FD, Agodi A, Agrawal A, Agyemang-Duah W, Ahinkorah BO, Ahmad A, Ahmad D, Ahmad F, Ahmad MM, Ahmad S, Ahmad S, Ahmad T, Ahmadi K, Ahmadzade AM, Ahmed A, Ahmed A, Ahmed H, Ahmed LA, Ahmed MS, Ahmed MS, Ahmed MB, Ahmed SA, Ajami M, Aji B, Akara EM, Akbarialiabad H, Akinosoglou K, Akinyemiju T, Akkaif MA, Akyirem S, Al Hamad H, Al Hasan SM, Alahdab F, Alalalmeh SO, Alalwan TA, Al-Aly Z, Alam K, Alam M, Alam N, Al-amer RM, Alanezi FM, Alanzi TM, Al-Azzam S, Albakri A, Albashtawy M, AlBataineh MT, Alcalde-Rabanal JE, Aldawsari KA, Aldhaleei WA, Aldridge RW, Alema HB, Alemayohu MA, Alemi S, Alemu YM, Al-Gheethi AAS, Alhabib KF, Alhalaiqa FAN, Al-Hanawi MK, Ali A, Ali A, Ali L, Ali MU, Ali R, Ali S, Ali SSS, Alicandro G, Alif SM, Alikhani R, Alimohamadi Y, Aliyi AA, Aljasir MAM, Aljunid SM, Alla F, Allebeck P, Al-Marwani S, Al-Maweri SAA, Almazan JU, Al-Mekhlafi HM, Almidani L, Almidani O, Alomari MA, Al-Omari B, Alonso J, Alqahtani JS, Alqalyoobi S, Alqutaibi AY, Al-Sabah SK, Altaany Z, Altaf A, Al-Tawfiq JA, Altirkawi KA, Aluh DO, Alvis-Guzman N, Alwafi H, Al-Worafi YM, Aly H, Aly S, Alzoubi KH, Amani R, Amare AT, Amegbor PM, Ameyaw EK, Amin TT, Amindarolzarbi A, Amiri S, Amirzade-Iranaq MH, Amu H, Amugsi DA, Amusa GA, Ancuceanu R, Anderlini D, Anderson DB, Andrade PP, Andrei CL, Andrei T, Angus C, Anil A, Anil S, Anoushiravani A, Ansari H, Ansariadi A, Ansari-Moghaddam A, Antony CM, Antriyandarti E, Anvari D, Anvari S, Anwar S, Anwar SL, Anwer R, Anyasodor AE, Aqeel M, Arab JP, Arabloo J, Arafat M, Aravkin AY, Areda D, Aremu A, Aremu O, Ariffin H, Arkew M, Armocida B, Arndt MB, Ärnlöv J, Arooj M, Artamonov AA, Arulappan J, Aruleba RT, Arumugam A, Asaad M, Asadi-Lari M, Asgedom AA, Asghariahmadabad M, Asghari-Jafarabadi M, Ashraf M, Aslani A, Astell-Burt T, Athar M, Athari SS, Atinafu BTT, Atlaw HW, Atorkey P, Atout MMW, Atreya A, Aujayeb A, Ausloos M, Avan A, Awedew AF, Aweke AM, Ayala Quintanilla BP, Ayatollahi H, Ayuso-Mateos JL, Ayyoubzadeh SM, Azadnajafabad S, Azevedo RMS, Azzam AY, B DB, Babu AS, Badar M, Badiye AD, Baghdadi S, Bagheri N, Bagherieh S, Bah S, Bahadorikhalili S, Bahmanziari N, Bai R, Baig AA, Baker JL, Bako AT, Bakshi RK, Balakrishnan S, Balasubramanian M, Baltatu OC, Bam K, Banach M, Bandyopadhyay S, Banik PC, Bansal H, Bansal K, Barbic F, Barchitta M, Bardhan M, Bardideh E, Barker-Collo SL, Bärnighausen TW, Barone-Adesi F, Barqawi HJ, Barrero LH, Barrow A, Barteit S, Barua L, Basharat Z, Bashiri A, Basiru A, Baskaran P, Basnyat B, Bassat Q, Basso JD, Basting AVL, Basu S, Batra K, Baune BT, Bayati M, Bayileyegn NS, Beaney T, Bedi N, Beghi M, Behboudi E, Behera P, Behnoush AH, Behzadifar M, Beiranvand M, Bejarano Ramirez DF, Béjot Y, Belay SA, Belete CM, Bell ML, Bello MB, Bello OO, Belo L, Beloukas A, Bender RG, Bensenor IM, Beran A, Berezvai Z, Berhie AY, Berice BN, Bernstein RS, Bertolacci GJ, Bettencourt PJG, Beyene KA, Bhagat DS, Bhagavathula AS, Bhala N, Bhalla A, Bhandari D, Bhangdia K, Bhardwaj N, Bhardwaj P, Bhardwaj PV, Bhargava A, Bhaskar S, Bhat V, Bhatti GK, Bhatti JS, Bhatti MS, Bhatti R, Bhutta ZA, Bikbov B, Bishai JD, Bisignano C, Bisulli F, Biswas A, Biswas B, Bitaraf S, Bitew BD, Bitra VR, Bjørge T, Boachie MK, Boampong MS, Bobirca AV, Bodolica V, Bodunrin AO, Bogale EK, Bogale KA, Bohlouli S, Bolarinwa OA, Boloor A, Bonakdar Hashemi M, Bonny A, Bora K, Bora Basara B, Borhany H, Borzutzky A, Bouaoud S, Boustany A, Boxe C, Boyko EJ, Brady OJ, Braithwaite D, Brant LC, Brauer M, Brazinova A, Brazo-Sayavera J, Breitborde NJK, Breitner S, Brenner H, Briko AN, Briko NI, Britton G, Brown J, Brugha T, Bulamu NB, Bulto LN, Buonsenso D, Burns RA, Busse R, Bustanji Y, Butt NS, Butt ZA, Caetano dos Santos FL, Calina D, Cámera LA, Campos LA, Campos-Nonato IR, Cao C, Cao Y, Capodici A, Cárdenas R, Carr S, Carreras G, Carrero JJ, Carugno A, Carvalheiro CG, Carvalho F, Carvalho M, Castaldelli-Maia JM, Castañeda-Orjuela CA, Castelpietra G, Catalá-López F, Catapano AL, Cattaruzza MS, Cederroth CR, Cegolon L, Cembranel F, Cenderadewi M, Cercy KM, Cerin E, Cevik M, Chadwick J, Chahine Y, Chakraborty C, Chakraborty PA, Chan JSK, Chan RNC, Chandika RM, Chandrasekar EK, Chang CK, Chang JC, Chanie GS, Charalampous P, Chattu VK, Chaturvedi P, Chatzimavridou-Grigoriadou V, Chaurasia A, Chen AW, Chen AT, Chen CS, Chen H, Chen MX, Chen S, Cheng CY, Cheng ETW, Cherbuin N, Cheru WA, Chien JH, Chimed-Ochir O, Chimoriya R, Ching PR, Chirinos-Caceres JL, Chitheer A, Cho WCS, Chong B, Chopra H, Choudhari SG, Chowdhury R, Christopher DJ, Chukwu IS, Chung E, Chung E, Chung E, Chung SC, Chutiyami M, Cindi Z, Cioffi I, Claassens MM, Claro RM, Coberly K, Cogen RM, Columbus A, Comfort H, Conde J, Cortese S, Cortesi PA, Costa VM, Costanzo S, Cousin E, Couto RAS, Cowden RG, Cramer KM, Criqui MH, Cruz-Martins N, Cuadra-Hernández SM, Culbreth GT, Cullen P, Cunningham M, Curado MP, Dadana S, Dadras O, Dai S, Dai X, Dai Z, Dalli LL, Damiani G, Darega Gela J, Das JK, Das S, Das S, Dascalu AM, Dash NR, Dashti M, Dastiridou A, Davey G, Dávila-Cervantes CA, Davis Weaver N, Davletov K, De Leo D, de Luca K, Debele AT, Debopadhaya S, Degenhardt L, Dehghan A, Deitesfeld L, Del Bo' C, Delgado-Enciso I, Demessa BH, Demetriades AK, Deng K, Deng X, Denova-Gutiérrez E, Deravi N, Dereje N, Dervenis N, Dervišević E, Des Jarlais DC, Desai HD, Desai R, Devanbu VGC, Dewan SMR, Dhali A, Dhama K, Dhimal M, Dhingra S, Dhulipala VR, Dias da Silva D, Diaz D, Diaz MJ, Dima A, Ding DD, Ding H, Dinis-Oliveira RJ, Dirac MA, Djalalinia S, Do THP, do Prado CB, Doaei S, Dodangeh M, Dodangeh M, Dohare S, Dokova KG, Dolecek C, Dominguez RMV, Dong W, Dongarwar D, D'Oria M, Dorostkar F, Dorsey ER, dos Santos WM, Doshi R, Doshmangir L, Dowou RK, Driscoll TR, Dsouza HL, Dsouza V, Du M, Dube J, Duncan BB, Duraes AR, Duraisamy S, Durojaiye OC, Dwyer-Lindgren L, Dzianach PA, Dziedzic AM, E'mar AR, Eboreime E, Ebrahimi A, Echieh CP, Edinur HA, Edvardsson D, Edvardsson K, Efendi D, Efendi F, Effendi DE, Eikemo TA, Eini E, Ekholuenetale M, Ekundayo TC, El Sayed I, Elbarazi I, Elema TB, Elemam NM, Elgar FJ, Elgendy IY, ElGohary GMT, Elhabashy HR, Elhadi M, El-Huneidi W, Elilo LT, Elmeligy OAA, Elmonem MA, Elshaer M, Elsohaby I, Emeto TI, Engelbert Bain L, Erkhembayar R, Esezobor CI, Eshrati B, Eskandarieh S, Espinosa-Montero J, Esubalew H, Etaee F, Fabin N, Fadaka AO, Fagbamigbe AF, Fahim A, Fahimi S, Fakhri-Demeshghieh A, Falzone L, Fareed M, Farinha CSES, Faris MEM, Faris PS, Faro A, Fasanmi AO, Fatehizadeh A, Fattahi H, Fauk NK, Fazeli P, Feigin VL, Feizkhah A, Fekadu G, Feng X, Fereshtehnejad SM, Feroze AH, Ferrante D, Ferrari AJ, Ferreira N, Fetensa G, Feyisa BR, Filip I, Fischer F, Flavel J, Flood D, Florin BT, Foigt NA, Folayan MO, Fomenkov AA, Foroutan B, Foroutan M, Forthun I, Fortuna D, Foschi M, Fowobaje KR, Francis KL, Franklin RC, Freitas A, Friedman J, Friedman SD, Fukumoto T, Fuller JE, Fux B, Gaal PA, Gadanya MA, Gaidhane AM, Gaihre S, Gakidou E, Galali Y, Galles NC, Gallus S, Ganbat M, Gandhi AP, Ganesan B, Ganiyani MA, Garcia-Gordillo MA, Gardner WM, Garg J, Garg N, Gautam RK, Gbadamosi SO, Gebi TG, Gebregergis MW, Gebrehiwot M, Gebremeskel TG, Georgescu SR, Getachew T, Gething PW, Getie M, Ghadiri K, Ghahramani S, Ghailan KY, Ghasemi MR, Ghasempour Dabaghi G, Ghasemzadeh A, Ghashghaee A, Ghassemi F, Ghazy RM, Ghimire A, Ghoba S, Gholamalizadeh M, Gholamian A, Gholamrezanezhad A, Gholizadeh N, Ghorbani M, Ghorbani Vajargah P, Ghoshal AG, Gill PS, Gill TK, Gillum RF, Ginindza TG, Girmay A, Glasbey JC, Gnedovskaya EV, Göbölös L, Godinho MA, Goel A, Golchin A, Goldust M, Golechha M, Goleij P, Gomes NGM, Gona PN, Gopalani SV, Gorini G, Goudarzi H, Goulart AC, Goulart BNG, Goyal A, Grada A, Graham SM, Grivna M, Grosso G, Guan SY, Guarducci G, Gubari MIM, Gudeta MD, Guha A, Guicciardi S, Guimarães RA, Gulati S, Gunawardane DA, Gunturu S, Guo C, Gupta AK, Gupta B, Gupta MK, Gupta M, Gupta RD, Gupta R, Gupta S, Gupta VB, Gupta VK, Gupta VK, Gurmessa L, Gutiérrez RA, Habibzadeh F, Habibzadeh P, Haddadi R, Hadei M, Hadi NR, Haep N, Hafezi-Nejad N, Hailu A, Haj-Mirzaian A, Halboub ES, Hall BJ, Haller S, Halwani R, Hamadeh RR, Hameed S, Hamidi S, Hamilton EB, Han C, Han Q, Hanif A, Hanifi N, Hankey GJ, Hanna F, Hannan MA, Haque MN, Harapan H, Hargono A, Haro JM, Hasaballah AI, Hasan I, Hasan MT, Hasani H, Hasanian M, Hashi A, Hasnain MS, Hassan I, Hassanipour S, Hassankhani H, Haubold J, Havmoeller RJ, Hay SI, He J, Hebert JJ, Hegazi OE, Heidari G, Heidari M, Heidari-Foroozan M, Helfer B, Hendrie D, Herrera-Serna BY, Herteliu C, Hesami H, Hezam K, Hill CL, Hiraike Y, Holla R, Horita N, Hossain MM, Hossain S, Hosseini MS, Hosseinzadeh H, Hosseinzadeh M, Hosseinzadeh Adli A, Hostiuc M, Hostiuc S, Hsairi M, Hsieh VCR, Hsu RL, Hu C, Huang J, Hultström M, Humayun A, Hundie TG, Hussain J, Hussain MA, Hussein NR, Hussien FM, Huynh HH, Hwang BF, Ibitoye SE, Ibrahim KS, Iftikhar PM, Ijo D, Ikiroma AI, Ikuta KS, Ikwegbue PC, Ilesanmi OS, Ilic IM, Ilic MD, Imam MT, Immurana M, Inamdar S, Indriasih E, Iqhrammullah M, Iradukunda A, Iregbu KC, Islam MR, Islam SMS, Islami F, Ismail F, Ismail NE, Iso H, Isola G, Iwagami M, Iwu CCD, Iyamu IO, Iyer M, J LM, Jaafari J, Jacob L, Jacobsen KH, Jadidi-Niaragh F, Jafarinia M, Jafarzadeh A, Jaggi K, Jahankhani K, Jahanmehr N, Jahrami H, Jain N, Jairoun AA, Jaiswal A, Jamshidi E, Janko MM, Jatau AI, Javadov S, Javaheri T, Jayapal SK, Jayaram S, Jebai R, Jee SH, Jeganathan J, Jha AK, Jha RP, Jiang H, Jin Y, Johnson O, Jokar M, Jonas JB, Joo T, Joseph A, Joseph N, Joshua CE, Joshy G, Jozwiak JJ, Jürisson M, K V, Kaambwa B, Kabir A, Kabir Z, Kadashetti V, Kadir DH, Kalani R, Kalankesh LR, Kalankesh LR, Kaliyadan F, Kalra S, Kamal VK, Kamarajah SK, Kamath R, Kamiab Z, Kamyari N, Kanagasabai T, Kanchan T, Kandel H, Kanmanthareddy AR, Kanmiki EW, Kanmodi KK, Kannan S S, Kansal SK, Kantar RS, Kapoor N, Karajizadeh M, Karanth SD, Karasneh RA, Karaye IM, Karch A, Karim A, Karimi SE, Karimi Behnagh A, Kashoo FZ, Kasnazani QHA, Kasraei H, Kassebaum NJ, Kassel MB, Kauppila JH, Kaur N, Kawakami N, Kayode GA, Kazemi F, Kazemian S, Kazmi TH, Kebebew GM, Kebede AD, Kebede F, Keflie TS, Keiyoro PN, Keller C, Kelly JT, Kempen JH, Kerr JA, Kesse-Guyot E, Khajuria H, Khalaji A, Khalid N, Khalil AA, Khalilian A, Khamesipour F, Khan A, Khan A, Khan G, Khan I, Khan IA, Khan MN, Khan M, Khan MJ, Khan MAB, Khan ZA, Khan suheb MZ, Khanmohammadi S, Khatab K, Khatami F, Khatatbeh H, Khatatbeh MM, Khavandegar A, Khayat Kashani HR, Khidri FF, Khodadoust E, Khorgamphar M, Khormali M, Khorrami Z, Khosravi A, Khosravi MA, Kifle ZD, Kim G, Kim J, Kim K, Kim MS, Kim YJ, Kimokoti RW, Kinzel KE, Kisa A, Kisa S, Klu D, Knudsen AKS, Kocarnik JM, Kochhar S, Kocsis T, Koh DSQ, Kolahi AA, Kolves K, Kompani F, Koren G, Kosen S, Kostev K, Koul PA, Koulmane Laxminarayana SL, Krishan K, Krishna H, Krishna V, Krishnamoorthy V, Krishnamoorthy Y, Krohn KJ, Kuate Defo B, Kucuk Bicer B, Kuddus MA, Kuddus M, Kuitunen I, Kulimbet M, Kulkarni V, Kumar A, Kumar A, Kumar H, Kumar M, Kumar R, Kumari M, Kumie FT, Kundu S, Kurmi OP, Kusnali A, Kusuma D, Kwarteng A, Kyriopoulos I, Kyu HH, La Vecchia C, Lacey B, Ladan MA, Laflamme L, Lagat AK, Lager ACJ, Lahmar A, Lai DTC, Lal DK, Lalloo R, Lallukka T, Lam H, Lám J, Landrum KR, Lanfranchi F, Lang JJ, Langguth B, Lansingh VC, Laplante-Lévesque A, Larijani B, Larsson AO, Lasrado S, Lassi ZS, Latief K, Latifinaibin K, Lauriola P, Le NHH, Le TTT, Le TDT, Ledda C, Ledesma JR, Lee M, Lee PH, Lee SW, Lee SWH, Lee WC, Lee YH, LeGrand KE, Leigh J, Leong E, Lerango TL, Li MC, Li W, Li X, Li Y, Li Z, Ligade VS, Likaka ATM, Lim LL, Lim SS, Lindstrom M, Linehan C, Liu C, Liu G, Liu J, Liu R, Liu S, Liu X, Liu X, Llanaj E, Loftus MJ, López-Bueno R, Lopukhov PD, Loreche AM, Lorkowski S, Lotufo PA, Lozano R, Lubinda J, Lucchetti G, Lugo A, Lunevicius R, Ma ZF, Maass KL, Machairas N, Machoy M, Madadizadeh F, Madsen C, Madureira-Carvalho ÁM, Maghazachi AA, Maharaj SB, Mahjoub S, Mahmoud MA, Mahmoudi A, Mahmoudi E, Mahmoudi R, Majeed A, Makhdoom IF, Malakan Rad E, Maled V, Malekzadeh R, Malhotra AK, Malhotra K, Malik AA, Malik I, Malta DC, Mamun AA, Mansouri P, Mansournia MA, Mantovani LG, Maqsood S, Marasini BP, Marateb HR, Maravilla JC, Marconi AM, Mardi P, Marino M, Marjani A, Martinez G, Martinez-Guerra BA, Martinez-Piedra R, Martini D, Martini S, Martins-Melo FR, Martorell M, Marx W, Maryam S, Marzo RR, Masaka A, Masrie A, Mathieson S, Mathioudakis AG, Mathur MR, Mattumpuram J, Matzopoulos R, Maude RJ, Maugeri A, Maulik PK, Mayeli M, Mazaheri M, Mazidi M, McGrath JJ, McKee M, McKowen ALW, McLaughlin SA, McPhail SM, Mechili EA, Medina JRC, Mediratta RP, Meena JK, Mehra R, Mehrabani-Zeinabad K, Mehrabi Nasab E, Mekene Meto T, Meles GG, Mendez-Lopez MAM, Mendoza W, Menezes RG, Mengist B, Mentis AFA, Meo SA, Meresa HA, Meretoja A, Meretoja TJ, Mersha AM, Mesfin BA, Mestrovic T, Mettananda KCD, Mettananda S, Meylakhs P, Mhlanga A, Mhlanga L, Mi T, Miazgowski T, Micha G, Michalek IM, Miller TR, Mills EJ, Minh LHN, Mini GK, Mir Mohammad Sadeghi P, Mirica A, Mirijello A, Mirrakhimov EM, Mirutse MK, Mirzaei M, Misganaw A, Mishra A, Misra S, Mitchell PB, Mithra P, Mittal C, Mobayen M, Moberg ME, Mohamadkhani A, Mohamed J, Mohamed MFH, Mohamed NS, Mohammad-Alizadeh-Charandabi S, Mohammadi S, Mohammadian-Hafshejani A, Mohammadifard N, Mohammed H, Mohammed H, Mohammed M, Mohammed S, Mohammed S, Mohan V, Mojiri-Forushani H, Mokari A, Mokdad AH, Molinaro S, Molokhia M, Momtazmanesh S, Monasta L, Mondello S, Moni MA, Moodi Ghalibaf A, Moradi M, Moradi Y, Moradi-Lakeh M, Moradzadeh M, Moraga P, Morawska L, Moreira RS, Morovatdar N, Morrison SD, Morze J, Mosser JF, Motappa R, Mougin V, Mouodi S, Mousavi P, Mousavi SE, Mousavi Khaneghah A, Mpolya EA, Mrejen M, Mubarik S, Muccioli L, Mueller UO, Mughal F, Mukherjee S, Mulita F, Munjal K, Murillo-Zamora E, Musaigwa F, Musallam KM, Mustafa A, Mustafa G, Muthupandian S, Muthusamy R, Muzaffar M, Myung W, Nagarajan AJ, Nagel G, Naghavi P, Naheed A, Naik GR, Naik G, Nainu F, Nair S, Najmuldeen HHR, Nakhostin Ansari N, Nangia V, Naqvi AA, Narasimha Swamy S, Narayana AI, Nargus S, Nascimento BR, Nascimento GG, Nasehi S, Nashwan AJ, Natto ZS, 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Otoiu A, Otstavnov N, Otstavnov SS, Ouyahia A, Ouyang G, Owolabi MO, Ozten Y, P A MP, Padron-Monedero A, Padubidri JR, Pal PK, Palicz T, Palladino C, Palladino R, Palma-Alvarez RF, Pan F, Pan HF, Pana A, Panda P, Panda-Jonas S, Pandi-Perumal SR, Pangaribuan HU, Panos GD, Panos LD, Pantazopoulos I, Pantea Stoian AM, Papadopoulou P, Parikh RR, Park S, Parthasarathi A, Pashaei A, Pasovic M, Passera R, Pasupula DK, Patel HM, Patel J, Patel SK, Patil S, Patoulias D, Patthipati VS, Paudel U, Pazoki Toroudi H, Pease SA, Peden AE, Pedersini P, Pensato U, Pepito VCF, Peprah EK, Peprah P, Perdigão J, Pereira M, Peres MFP, Perianayagam A, Perico N, Pestell RG, Pesudovs K, Petermann-Rocha FE, Petri WA, Pham HT, Philip AK, Phillips MR, Pierannunzio D, Pigeolet M, Pigott DM, Pilgrim T, Piracha ZZ, Piradov MA, Pirouzpanah S, Plakkal N, Plotnikov E, Podder V, Poddighe D, Polinder S, Polkinghorne KR, Poluru R, Ponkilainen VT, Porru F, Postma MJ, Poudel GR, Pourshams A, Pourtaheri N, Prada SI, Pradhan PMS, Prakasham TN, Prasad M, Prashant A, Prates EJS, Prieto Alhambra D, PRISCILLA TINA, Pritchett N, Purohit BM, Puvvula J, Qasim NH, Qattea I, Qazi AS, Qian G, Qiu S, Qureshi MF, Rabiee Rad M, Radfar A, Radhakrishnan RA, Radhakrishnan V, Raeisi Shahraki H, Rafferty Q, Raggi A, Raghav PR, Raheem N, Rahim F, Rahim MJ, Rahimi-Movaghar V, Rahman MM, Rahman MHU, Rahman M, Rahman MA, Rahmani AM, Rahmani S, Rahmanian V, Rajaa S, Rajput P, Rakovac I, Ramasamy SK, Ramazanu S, Rana K, Ranabhat CL, Rancic N, Rane A, Rao CR, Rao IR, Rao M, Rao SJ, Rasali DP, Rasella D, Rashedi S, Rashedi V, Rashidi MM, Rasouli-Saravani A, Rasul A, Rathnaiah Babu G, Rauniyar SK, Ravangard R, Ravikumar N, Rawaf DL, Rawaf S, Rawal L, Rawassizadeh R, Rawlley B, Raza RZ, Razo C, Redwan EMM, Rehman FU, Reifels L, Reiner Jr RC, Remuzzi G, Reyes LF, Rezaei M, Rezaei N, Rezaei N, Rezaeian M, Rhee TG, Riaz MA, Ribeiro ALP, Rickard J, Riva HR, Robinson-Oden HE, Rodrigues CF, Rodrigues M, Roever L, Rogowski ELB, Rohloff P, Romadlon DS, Romero-Rodríguez E, Romoli M, Ronfani L, Roshandel G, Roth GA, Rout HS, Roy N, Roy P, Rubagotti E, Ruela GDA, Rumisha SF, Runghien T, Rwegerera GM, Rynkiewicz A, S N C, Saad AMA, Saadatian Z, Saber K, Saber-Ayad MM, SaberiKamarposhti M, Sabour S, Sacco S, Sachdev PS, Sachdeva R, Saddik B, Saddler A, Sadee BA, Sadeghi E, Sadeghi E, Sadeghian F, Saeb MR, Saeed U, Safaeinejad F, Safi SZ, Sagar R, Saghazadeh A, Sagoe D, Saheb Sharif-Askari F, Saheb Sharif-Askari N, Sahebkar A, Sahoo SS, Sahoo U, Sahu M, Saif Z, Sajid MR, Sakshaug JW, Salam N, Salamati P, Salami AA, Salaroli LB, Saleh MA, Salehi S, Salem MR, Salem MZY, Salimi S, Samadi Kafil H, Samadzadeh S, Samargandy S, Samodra YL, Samy AM, Sanabria J, Sanna F, Santomauro DF, Santos IS, Santric-Milicevic MM, Sao Jose BP, Sarasmita MA, Saraswathy SYI, Saravanan A, Saravi B, Sarikhani Y, Sarkar T, Sarmiento-Suárez R, Sarode GS, Sarode SC, Sarveazad A, Sathian B, Sathish T, Satpathy M, Sayeed A, Sayeed MA, Saylan M, Sayyah M, Scarmeas N, Schaarschmidt BM, Schlaich MP, Schlee W, Schmidt MI, Schneider IJC, Schuermans A, Schumacher AE, Schutte AE, Schwarzinger M, Schwebel DC, Schwendicke F, Šekerija M, Selvaraj S, Senapati S, Senthilkumaran S, Sepanlou SG, Serban D, Sethi Y, Sha F, Shabany M, Shafaat A, Shafie M, Shah NS, Shah PA, Shah SM, Shahabi S, Shahbandi A, Shahid I, Shahid S, Shahid W, Shahsavari HR, Shahwan MJ, Shaikh A, Shaikh MA, Shakeri A, Shalash AS, Sham S, Shamim MA, Shams-Beyranvand M, Shamshad H, Shamsi MA, Shanawaz M, Shankar A, Sharfaei S, Sharifan A, Sharifi-Rad J, Sharma R, Sharma S, Sharma U, Sharma V, Shastry RP, Shavandi A, Shayan M, Shehabeldine AME, Sheikh A, Sheikhi RA, Shen J, Shetty A, Shetty BSK, Shetty PH, Shi P, Shibuya K, Shiferaw D, Shigematsu M, Shin MJ, Shin YH, Shiri R, Shirkoohi R, Shitaye NA, Shittu A, Shiue I, Shivakumar KM, Shivarov V, Shokraneh F, Shokri A, Shool S, Shorofi SA, Shrestha S, Shuval K, Siddig EE, Silva JP, Silva LMLR, Silva S, Simpson CR, Singal A, Singh A, Singh BB, Singh G, Singh J, Singh NP, Singh P, Singh S, Sinha DN, Sinto R, Siraj MS, Sirota SB, Sitas F, Sivakumar S, Skryabin VY, Skryabina AA, Sleet DA, Socea B, Sokhan A, Solanki R, Solanki S, Soleimani H, Soliman SSM, Song S, Song Y, Sorensen RJD, Soriano JB, Soyiri IN, Spartalis M, Spearman S, Sreeramareddy CT, Srivastava VK, Stanaway JD, Stanikzai MH, Stark BA, Starnes JR, Starodubova AV, Stein C, Stein DJ, Steinbeis F, Steiner C, Steinmetz JD, Steiropoulos P, Stevanović A, Stockfelt L, Stokes MA, Stortecky S, Subramaniyan V, Suleman M, Suliankatchi Abdulkader R, Sultana A, Sun HZ, Sun J, Sundström J, Sunkersing D, Sunnerhagen KS, Swain CK, Szarpak L, Szeto MD, Szócska M, Tabaee Damavandi P, Tabarés-Seisdedos R, Tabatabaei SM, Tabatabaei Malazy O, Tabatabaeizadeh SA, Tabatabai S, Tabish M, TADAKAMADLA JYOTHI, Tadakamadla SK, Taheri Abkenar Y, Taheri Soodejani M, Taiba J, Takahashi K, Talaat IM, Talukder A, Tampa M, Tamuzi JL, Tan KK, Tandukar S, Tang H, Tang HK, Tarigan IU, Tariku MK, Tariqujjaman M, Tarkang EE, Tavakoli Oliaee R, Tavangar SM, Taveira N, Tefera YM, Temsah MH, Temsah RMH, Teramoto M, Tesler R, Teye-Kwadjo E, Thakur R, Thangaraju P, Thankappan KR, Tharwat S, Thayakaran R, Thomas N, Thomas NK, Thomson AM, Thrift AG, Thum CCC, Thygesen LC, Tian J, Tichopad A, Ticoalu JHV, Tillawi T, Tiruye TY, Titova MV, Tonelli M, Topor-Madry R, Toriola AT, Torre AE, Touvier M, Tovani-Palone MR, Tran JT, Tran NM, Trico D, Tromans SJ, Truyen TTTT, Tsatsakis A, Tsegay GM, Tsermpini EE, Tumurkhuu M, Tung K, Tyrovolas S, Uddin SMN, Udoakang AJ, Udoh A, Ullah A, Ullah I, Ullah S, Ullah S, Umakanthan S, Umeokonkwo CD, Unim B, Unnikrishnan B, Unsworth CA, Upadhyay E, Urso D, Usman JS, Vahabi SM, Vaithinathan AG, Valizadeh R, Van de Velde SM, Van den Eynde J, Varga O, Vart P, Varthya SB, Vasankari TJ, Vasic M, Vaziri S, Vellingiri B, Venketasubramanian N, Verghese NA, Verma M, Veroux M, Verras GI, Vervoort D, Villafañe JH, Villanueva GI, Vinayak M, Violante FS, Viskadourou M, Vladimirov SK, Vlassov V, Vo B, Vollset SE, Vongpradith A, Vos T, Vujcic IS, Vukovic R, Wafa HA, Waheed Y, Wamai RG, Wang C, Wang N, Wang S, Wang S, Wang Y, Wang YP, Waqas M, Ward P, Wassie EG, Watson S, Watson SLW, Weerakoon KG, Wei MY, Weintraub RG, Weiss DJ, Westerman R, Whisnant JL, Wiangkham T, Wickramasinghe DP, Wickramasinghe ND, Wilandika A, Wilkerson C, Willeit P, Wilson S, Wojewodzic MW, Woldegebreal DH, Wolf AW, Wolfe CDA, Wondimagegene YA, Wong YJ, Wongsin U, Wu AM, Wu C, Wu F, Wu X, Wu Z, Xia J, Xiao H, Xie Y, Xu S, Xu WD, Xu X, Xu YY, Yadollahpour A, Yamagishi K, Yang D, Yang L, Yano Y, Yao Y, Yaribeygi H, Ye P, Yehualashet SS, Yesiltepe M, Yesuf SA, Yezli S, Yi S, Yigezu A, Yiğit A, Yiğit V, Yip P, Yismaw MB, Yismaw Y, Yon DK, Yonemoto N, Yoon SJ, You Y, Younis MZ, Yousefi Z, Yu C, Yu Y, Yuh FH, Zadey S, Zadnik V, Zafari N, Zakham F, Zaki N, Zaman SB, Zamora N, Zand R, Zangiabadian M, Zar HJ, Zare I, Zarrintan A, Zeariya MGM, Zeinali Z, Zhang H, Zhang J, Zhang J, Zhang L, Zhang Y, Zhang ZJ, Zhao H, Zhong C, Zhou J, Zhu B, Zhu L, Ziafati M, Zielińska M, Zitoun OA, Zoladl M, Zou Z, Zuhlke LJ, Zumla A, Zweck E, Zyoud SH, Wool EE, Murray CJL. Global burden of 288 causes of death and life expectancy decomposition in 204 countries and territories and 811 subnational locations, 1990-2021: a systematic analysis for the Global Burden of Disease Study 2021. Lancet 2024; 403:2100-2132. [PMID: 38582094 PMCID: PMC11126520 DOI: 10.1016/s0140-6736(24)00367-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/15/2024] [Accepted: 02/22/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND Regular, detailed reporting on population health by underlying cause of death is fundamental for public health decision making. Cause-specific estimates of mortality and the subsequent effects on life expectancy worldwide are valuable metrics to gauge progress in reducing mortality rates. These estimates are particularly important following large-scale mortality spikes, such as the COVID-19 pandemic. When systematically analysed, mortality rates and life expectancy allow comparisons of the consequences of causes of death globally and over time, providing a nuanced understanding of the effect of these causes on global populations. METHODS The Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021 cause-of-death analysis estimated mortality and years of life lost (YLLs) from 288 causes of death by age-sex-location-year in 204 countries and territories and 811 subnational locations for each year from 1990 until 2021. The analysis used 56 604 data sources, including data from vital registration and verbal autopsy as well as surveys, censuses, surveillance systems, and cancer registries, among others. As with previous GBD rounds, cause-specific death rates for most causes were estimated using the Cause of Death Ensemble model-a modelling tool developed for GBD to assess the out-of-sample predictive validity of different statistical models and covariate permutations and combine those results to produce cause-specific mortality estimates-with alternative strategies adapted to model causes with insufficient data, substantial changes in reporting over the study period, or unusual epidemiology. YLLs were computed as the product of the number of deaths for each cause-age-sex-location-year and the standard life expectancy at each age. As part of the modelling process, uncertainty intervals (UIs) were generated using the 2·5th and 97·5th percentiles from a 1000-draw distribution for each metric. We decomposed life expectancy by cause of death, location, and year to show cause-specific effects on life expectancy from 1990 to 2021. We also used the coefficient of variation and the fraction of population affected by 90% of deaths to highlight concentrations of mortality. Findings are reported in counts and age-standardised rates. Methodological improvements for cause-of-death estimates in GBD 2021 include the expansion of under-5-years age group to include four new age groups, enhanced methods to account for stochastic variation of sparse data, and the inclusion of COVID-19 and other pandemic-related mortality-which includes excess mortality associated with the pandemic, excluding COVID-19, lower respiratory infections, measles, malaria, and pertussis. For this analysis, 199 new country-years of vital registration cause-of-death data, 5 country-years of surveillance data, 21 country-years of verbal autopsy data, and 94 country-years of other data types were added to those used in previous GBD rounds. FINDINGS The leading causes of age-standardised deaths globally were the same in 2019 as they were in 1990; in descending order, these were, ischaemic heart disease, stroke, chronic obstructive pulmonary disease, and lower respiratory infections. In 2021, however, COVID-19 replaced stroke as the second-leading age-standardised cause of death, with 94·0 deaths (95% UI 89·2-100·0) per 100 000 population. The COVID-19 pandemic shifted the rankings of the leading five causes, lowering stroke to the third-leading and chronic obstructive pulmonary disease to the fourth-leading position. In 2021, the highest age-standardised death rates from COVID-19 occurred in sub-Saharan Africa (271·0 deaths [250·1-290·7] per 100 000 population) and Latin America and the Caribbean (195·4 deaths [182·1-211·4] per 100 000 population). The lowest age-standardised death rates from COVID-19 were in the high-income super-region (48·1 deaths [47·4-48·8] per 100 000 population) and southeast Asia, east Asia, and Oceania (23·2 deaths [16·3-37·2] per 100 000 population). Globally, life expectancy steadily improved between 1990 and 2019 for 18 of the 22 investigated causes. Decomposition of global and regional life expectancy showed the positive effect that reductions in deaths from enteric infections, lower respiratory infections, stroke, and neonatal deaths, among others have contributed to improved survival over the study period. However, a net reduction of 1·6 years occurred in global life expectancy between 2019 and 2021, primarily due to increased death rates from COVID-19 and other pandemic-related mortality. Life expectancy was highly variable between super-regions over the study period, with southeast Asia, east Asia, and Oceania gaining 8·3 years (6·7-9·9) overall, while having the smallest reduction in life expectancy due to COVID-19 (0·4 years). The largest reduction in life expectancy due to COVID-19 occurred in Latin America and the Caribbean (3·6 years). Additionally, 53 of the 288 causes of death were highly concentrated in locations with less than 50% of the global population as of 2021, and these causes of death became progressively more concentrated since 1990, when only 44 causes showed this pattern. The concentration phenomenon is discussed heuristically with respect to enteric and lower respiratory infections, malaria, HIV/AIDS, neonatal disorders, tuberculosis, and measles. INTERPRETATION Long-standing gains in life expectancy and reductions in many of the leading causes of death have been disrupted by the COVID-19 pandemic, the adverse effects of which were spread unevenly among populations. Despite the pandemic, there has been continued progress in combatting several notable causes of death, leading to improved global life expectancy over the study period. Each of the seven GBD super-regions showed an overall improvement from 1990 and 2021, obscuring the negative effect in the years of the pandemic. Additionally, our findings regarding regional variation in causes of death driving increases in life expectancy hold clear policy utility. Analyses of shifting mortality trends reveal that several causes, once widespread globally, are now increasingly concentrated geographically. These changes in mortality concentration, alongside further investigation of changing risks, interventions, and relevant policy, present an important opportunity to deepen our understanding of mortality-reduction strategies. Examining patterns in mortality concentration might reveal areas where successful public health interventions have been implemented. Translating these successes to locations where certain causes of death remain entrenched can inform policies that work to improve life expectancy for people everywhere. FUNDING Bill & Melinda Gates Foundation.
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Coulborn RM, Danet C, Alsalhani A. Measles and rubella vaccine microneedle patch: new hope to reach the unreached children. Lancet 2024; 403:1825-1827. [PMID: 38697172 DOI: 10.1016/s0140-6736(24)00749-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 04/09/2024] [Indexed: 05/04/2024]
Affiliation(s)
| | - Corinne Danet
- Médecins Sans Frontières, Medical Department, Paris, France
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Qin A, Qin W, Hu F, Wang M, Yang H, Li L, Chen C, Bao B, Xin T, Xu L. Does unequal economic development contribute to the inequitable distribution of healthcare resources? Evidence from China spanning 2001-2020. Global Health 2024; 20:20. [PMID: 38443966 PMCID: PMC10913684 DOI: 10.1186/s12992-024-01025-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 02/26/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND There is a dearth of research combining geographical big data on medical resource allocation and growth with various statistical data. Given the recent achievements of China in economic development and healthcare, this study takes China as an example to investigate the dynamic geographical distribution patterns of medical resources, utilizing data on healthcare resources from 290 cities in China, as well as economic and population-related data. The study aims to examine the correlation between economic growth and spatial distribution of medical resources, with the ultimate goal of providing evidence for promoting global health equity. METHODS The data used in this study was sourced from the China City Statistical Yearbook from 2001 to 2020. Two indicators were employed to measure medical resources: the number of doctors per million population and the number of hospital and clinic beds per million population. We employed dynamic convergence model and fixed-effects model to examine the correlation between economic growth and the spatial distribution of medical resources. Ordinary least squares (OLS) were used to estimate the β values of the samples. RESULTS The average GDP for all city samples across all years was 36,019.31 ± 32,029.36, with an average of 2016.31 ± 1104.16 doctors per million people, and an average of 5986.2 ± 6801.67 hospital beds per million people. In the eastern cities, the average GDP for all city samples was 47,672.71 ± 37,850.77, with an average of 2264.58 ± 1288.89 doctors per million people, and an average of 3998.92 ± 1896.49 hospital beds per million people. Cities with initially low medical resources experienced faster growth (all β < 0, P < 0.001). The long-term convergence rate of the geographic distribution of medical resources in China was higher than the short-term convergence rate (|βi + 1| > |βi|, i = 1, 2, 3, …, 9, all β < 0, P < 0.001), and the convergence speed of doctor density exceeded that of bed density (bed: |βi| >doc: |βi|, i = 3, 4, 5, …, 10, P < 0.001). Economic growth significantly affected the convergence speed of medical resources, and this effect was nonlinear (doc: βi < 0, i = 1, 2, 3, …, 9, P < 0.05; bed: βi < 0, i = 1, 2, 3, …, 10, P < 0.01). The heterogeneity between provinces had a notable impact on the convergence of medical resources. CONCLUSIONS The experiences of China have provided significant insights for nations worldwide. Governments and institutions in all countries worldwide, should actively undertake measures to actively reduce health inequalities. This includes enhancing healthcare standards in impoverished regions, addressing issues of unequal distribution, and emphasizing the examination of social determinants of health within the domain of public health research.
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Affiliation(s)
- Afei Qin
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- National Health Commission (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan, 250012, Shandong, China
- Center for Health Economics Experiment and Public Policy Research, Shandong University, Jinan, 250012, Shandong, China
| | - Wenzhe Qin
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- National Health Commission (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan, 250012, Shandong, China
- Center for Health Economics Experiment and Public Policy Research, Shandong University, Jinan, 250012, Shandong, China
| | - Fangfang Hu
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- National Health Commission (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan, 250012, Shandong, China
- Center for Health Economics Experiment and Public Policy Research, Shandong University, Jinan, 250012, Shandong, China
| | - Meiqi Wang
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- National Health Commission (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan, 250012, Shandong, China
| | - Haifeng Yang
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- National Health Commission (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan, 250012, Shandong, China
- Center for Health Economics Experiment and Public Policy Research, Shandong University, Jinan, 250012, Shandong, China
| | - Lei Li
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- National Health Commission (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan, 250012, Shandong, China
- Center for Health Economics Experiment and Public Policy Research, Shandong University, Jinan, 250012, Shandong, China
| | - Chiqi Chen
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- National Health Commission (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan, 250012, Shandong, China
- Center for Health Economics Experiment and Public Policy Research, Shandong University, Jinan, 250012, Shandong, China
| | - Binghong Bao
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- National Health Commission (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan, 250012, Shandong, China
- Center for Health Economics Experiment and Public Policy Research, Shandong University, Jinan, 250012, Shandong, China
| | - Tianjiao Xin
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- National Health Commission (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan, 250012, Shandong, China
- Center for Health Economics Experiment and Public Policy Research, Shandong University, Jinan, 250012, Shandong, China
| | - Lingzhong Xu
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China.
- National Health Commission (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan, 250012, Shandong, China.
- Center for Health Economics Experiment and Public Policy Research, Shandong University, Jinan, 250012, Shandong, China.
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Shobayo B, Umeokonkwo CD, Jetoh RW, Gilayeneh JS, Akpan G, Amo-Addae M, Macauley J, Idowu RT. Descriptive Analysis of Measles Outbreak in Liberia, 2022. IJID REGIONS 2024; 10:200-206. [PMID: 38371726 PMCID: PMC10873729 DOI: 10.1016/j.ijregi.2024.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 01/18/2024] [Accepted: 01/18/2024] [Indexed: 02/20/2024]
Abstract
Background Liberia reported a large outbreak of measles involving all the counties in 2022. We conducted a descriptive analysis of the measles surveillance data to understand the trend of the outbreak and guide further policy action to prevent future outbreaks. Methods We analyzed the measles surveillance data from Epi week 1 to 51, 2022. All the laboratory-confirmed cases, clinically compatible and epidemiologically linked cases were included in the analysis, the variables of interest included the patient's age, sex, place of residence, measles classification, measles vaccination status, and outcome. We cleaned and analyzed the data using R version 4.2.0 and Arc GIS Pro. The demographic characteristics of the cases were presented, the progression of the cases was presented in Epicurve and the spatial distribution and the case fatality rate (CFR) of the case were presented at the district level using the Arc GIS Pro. Results The median age of the cases was 4 years (interquartile range: 2-8 years). Children under five years of age constituted 60% of the cases (4836/8127), and females accounted for 52% (4204/8127) of the cases. Only 1% (84/8127) of the cases had documentary evidence of receiving at least one dose of measles-containing vaccine (MCV). Only 3 out of 92 health districts in the country did not report a case of measles during the period under review. The overall cases fatality rate was 1% however CFR of up to 10% were reported in some districts. Conclusion The outbreak of measles involved almost all the districts of the country, exposing a possible nationwide suboptimal immunization coverage for MCV. The high CFR reported in some districts needs further investigation.
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Affiliation(s)
- Bode Shobayo
- National Public Institute of Liberia, Monrovia, Liberia
| | | | | | | | - Godwin Akpan
- African Field Epidemiology Network, Monrovia, Liberia
| | | | - Jane Macauley
- National Public Institute of Liberia, Monrovia, Liberia
| | - Rachel T. Idowu
- United States Centers for Disease Control and Prevention, Liberia Country Office, Monrovia, Liberia
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Duale HA, Gele A. Exploring knowledge of autism, its causes and treatment among immigrant and nonimmigrant parents in Somalia\Somaliland. Child Adolesc Psychiatry Ment Health 2024; 18:22. [PMID: 38326911 PMCID: PMC10851585 DOI: 10.1186/s13034-024-00713-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 01/25/2024] [Indexed: 02/09/2024] Open
Abstract
BACKGROUND The prevalence of autism spectrum disorders (ASDs) has increased over the recent years; however, little is known about the experience of parents of children with autism in Africa such as Somalia. The aim of this study is to understand the knowledge on autism of Somali parents of children with autism and their perceptions of causes and treatment of ASD. METHODS We conducted a qualitative study involving 22 parents of children with autism who lived in Mogadishu and Hargeisa; the two largest cities in Somalia. In-depth interviews were used to collect the data. Of the 22 participants, 9 were returned immigrants and 13 were local people (non-immigrants). Data were analysed using thematic analysis. RESULTS The data revealed that most of the parents hold the belief that their children's autism were caused by the measles vaccine. The findings demonstrated that parents sought diagnosis and treatment care from outside Somalia due to the lack of experience of health providers in the diagnosis and treatment of autism. The data also revealed a lack of knowledge about autism among the public with resultant stigma and discrimination against children with autism and their families. CONCLUSIONS Efforts to increase public knowledge on autism, its causes and treatments are of paramount importance, while a public health campaign designed to eliminate the stigma subjected to children with autism is necessary to improve the quality of life of children with autism and their caregivers. Finally, to counteract vaccine hesitancy, particularly in response to the measles vaccine, health policy makers should take steps to separate the cooccurrence of the onset of autism symptoms and the provision of the measles vaccine.
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Affiliation(s)
- Hodan A Duale
- Department of Maternal and Child Health, Somali Institute for Health Research (SIHR), Hargeisa, Somaliland.
| | - Abdi Gele
- Department of Maternal and Child Health, Somali Institute for Health Research (SIHR), Hargeisa, Somaliland.
- Department of Health Service Research, Norwegian Institute of Public Health, Skøyen, 222, 0213, Oslo, Norway.
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Aheto JMK, Olowe ID, Chan HMT, Ekeh A, Dieng B, Fafunmi B, Setayesh H, Atuhaire B, Crawford J, Tatem AJ, Utazi CE. Geospatial Analyses of Recent Household Surveys to Assess Changes in the Distribution of Zero-Dose Children and Their Associated Factors before and during the COVID-19 Pandemic in Nigeria. Vaccines (Basel) 2023; 11:1830. [PMID: 38140234 PMCID: PMC10747017 DOI: 10.3390/vaccines11121830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/25/2023] [Accepted: 12/01/2023] [Indexed: 12/24/2023] Open
Abstract
The persistence of geographic inequities in vaccination coverage often evidences the presence of zero-dose and missed communities and their vulnerabilities to vaccine-preventable diseases. These inequities were exacerbated in many places during the coronavirus disease 2019 (COVID-19) pandemic, due to severe disruptions to vaccination services. Understanding changes in zero-dose prevalence and its associated risk factors in the context of the COVID-19 pandemic is, therefore, critical to designing effective strategies to reach vulnerable populations. Using data from nationally representative household surveys conducted before the COVID-19 pandemic, in 2018, and during the pandemic, in 2021, in Nigeria, we fitted Bayesian geostatistical models to map the distribution of three vaccination coverage indicators: receipt of the first dose of diphtheria-tetanus-pertussis-containing vaccine (DTP1), the first dose of measles-containing vaccine (MCV1), and any of the four basic vaccines (bacilli Calmette-Guerin (BCG), oral polio vaccine (OPV0), DTP1, and MCV1), and the corresponding zero-dose estimates independently at a 1 × 1 km resolution and the district level during both time periods. We also explored changes in the factors associated with non-vaccination at the national and regional levels using multilevel logistic regression models. Our results revealed no increases in zero-dose prevalence due to the pandemic at the national level, although considerable increases were observed in a few districts. We found substantial subnational heterogeneities in vaccination coverage and zero-dose prevalence both before and during the pandemic, showing broadly similar patterns in both time periods. Areas with relatively higher zero-dose prevalence occurred mostly in the north and a few places in the south in both time periods. We also found consistent areas of low coverage and high zero-dose prevalence using all three zero-dose indicators, revealing the areas in greatest need. At the national level, risk factors related to socioeconomic/demographic status (e.g., maternal education), maternal access to and utilization of health services, and remoteness were strongly associated with the odds of being zero dose in both time periods, while those related to communication were mostly relevant before the pandemic. These associations were also supported at the regional level, but we additionally identified risk factors specific to zero-dose children in each region; for example, communication and cross-border migration in the northwest. Our findings can help guide tailored strategies to reduce zero-dose prevalence and boost coverage levels in Nigeria.
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Affiliation(s)
- Justice Moses K. Aheto
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton SO17 1BJ, UK; (I.D.O.); (H.M.T.C.); (A.J.T.); (C.E.U.)
- Department of Biostatistics, School of Public Health, College of Health Sciences, University of Ghana, Accra P.O. Box LG13, Ghana
| | - Iyanuloluwa Deborah Olowe
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton SO17 1BJ, UK; (I.D.O.); (H.M.T.C.); (A.J.T.); (C.E.U.)
| | - Ho Man Theophilus Chan
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton SO17 1BJ, UK; (I.D.O.); (H.M.T.C.); (A.J.T.); (C.E.U.)
- School of Mathematical Sciences, University of Southampton, Southampton SO17 1BJ, UK
| | | | | | | | | | - Brian Atuhaire
- Gavi, The Vaccine Alliance, Geneva, Switzerland; (H.S.); (B.A.); (J.C.)
| | - Jessica Crawford
- Gavi, The Vaccine Alliance, Geneva, Switzerland; (H.S.); (B.A.); (J.C.)
| | - Andrew J. Tatem
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton SO17 1BJ, UK; (I.D.O.); (H.M.T.C.); (A.J.T.); (C.E.U.)
| | - Chigozie Edson Utazi
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton SO17 1BJ, UK; (I.D.O.); (H.M.T.C.); (A.J.T.); (C.E.U.)
- School of Mathematical Sciences, University of Southampton, Southampton SO17 1BJ, UK
- Department of Statistics, Nnamdi Azikiwe University, Awka PMB 5025, Nigeria
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Cheng M, Lan T, Geater A, Deng QY, Lin YD, Jiang LY, Chen N, Zhu MT, Li Q, Tang XY. Health system barriers to timely routine measles vaccinations in rural southwest China: a qualitative study on the perspectives of township vaccination professionals and village doctors. BMJ Open 2023; 13:e072990. [PMID: 37993157 PMCID: PMC10668328 DOI: 10.1136/bmjopen-2023-072990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 10/16/2023] [Indexed: 11/24/2023] Open
Abstract
OBJECTIVES A well-functioning health system ensures timely routine measles vaccinations for age-appropriate children, minimising measles risk. However, there is limited knowledge about the impact of the performance of immunisation programmes in health systems on the timeliness of measles vaccination. This study aimed to identify health system barriers to timely routine measles vaccination in rural southwest China, integrating the perspectives of township vaccination professionals and village doctors. DESIGN, SETTING AND PARTICIPANTS Qualitative study among township vaccination professionals and village doctors in rural Guangxi, southwest China. METHODS 20 focus group discussions (FGDs) at township level and 120 in-depth interviews (IDIs) at village level, based on a four-theme framework. We used convenience sampling to recruit 60 township vaccination professionals and 120 village doctors in 2015. Instruments used were a semistructured questionnaire and interview outlines. We collected township and village-level data focusing on themes of health resources allocation, pattern of vaccination services, management and supervision of vaccination services, and perceptions of vaccination policy. The FGDs and IDIs were audio-recorded and transcribed. Braun and Clarke's thematic analysis approach was adopted to synthesise findings into meaningful subthemes, narrative text and illustrative quotations. RESULTS The health system barriers to timely routine vaccinations were explored across four themes. Barriers in the health resources allocation theme comprised (1) inadequacy of vaccination-related human resources (eg, lack of township vaccination professionals and lack of young village doctors), and (2) incompatible and non-identical information system of vaccination services across regions. Barriers in the pattern of vaccination services theme included inflexible vaccination services models, for example, routine vaccination services being offered monthly on fixed vaccination days, limited numbers of vaccination days per month, vaccination days being set on non-local market days, vaccination days being clustered into a specific period and absence of formal vaccination appointments. Ineffective economic incentive mechanism was identified as a barrier in the management and supervision of vaccination services theme. Low-degree participation of village doctors in routine vaccination services was identified as a barrier in the perceptions of vaccination policy theme. CONCLUSIONS We encourage policymakers and stakeholders to apply these findings to improve the timeliness of routine vaccination. Barriers to timely routine vaccination include inadequate allocation of vaccination-related resources and inflexible vaccination service delivery models. Financial and non-financial incentives should be used to retain and recruit vaccination professionals and village doctors. Strengthening information systems with unified data standards enables cross-regional data exchange. Optimising immunisation services and rationalising vaccination days could eliminate health system barriers and improve vaccination timeliness in rural China.
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Affiliation(s)
- Man Cheng
- Department of Epidemiology and Biostatistics, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Tao Lan
- Department of Epidemiology and Biostatistics, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Alan Geater
- Epidemiology Unit, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand
| | - Qiu-Yun Deng
- Institute of Vaccination, Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning, Guangxi, China
| | - Yue-Dong Lin
- Department of Epidemiology and Biostatistics, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Long-Yan Jiang
- Department of Epidemiology and Biostatistics, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Ning Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Man-Tong Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Qiao Li
- Department of Epidemiology and Biostatistics, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Xian-Yan Tang
- Department of Epidemiology and Biostatistics, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
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Fu H, Abbas K, Malvolti S, Gregory C, Ko M, Amorij JP, Jit M. Impact and cost-effectiveness of measles vaccination through microarray patches in 70 low-income and middle-income countries: mathematical modelling and early-stage economic evaluation. BMJ Glob Health 2023; 8:e012204. [PMID: 37949503 PMCID: PMC10649680 DOI: 10.1136/bmjgh-2023-012204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 10/01/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND Microarray patches (MAPs) are a promising technology being developed to reduce barriers to vaccine delivery based on needles and syringes (N&S). To address the evidence gap on the public health value of applying this potential technology to immunisation programmes, we evaluated the health impact on measles burden and cost-effectiveness of introducing measles-rubella MAPs (MR-MAPs) in 70 low-income and middle-income countries (LMICs). METHODS We used an age-structured dynamic model of measles transmission and vaccination to project measles cases, deaths and disability-adjusted life-years during 2030-2040. Compared with the baseline scenarios with continuing current N&S-based practice, we evaluated the introduction of MR-MAPs under different measles vaccine coverage projections and MR-MAP introduction strategies. Costs were calculated based on the ingredients approach, including direct cost of measles treatment, vaccine procurement and vaccine delivery. Model-based burden and cost estimates were derived for individual countries and country income groups. We compared the incremental cost-effectiveness ratios of introducing MR-MAPs to health opportunity costs. RESULTS MR-MAP introduction could prevent 27%-37% of measles burden between 2030 and 2040 in 70 LMICs, compared with the N&S-only immunisation strategy. The largest health impact could be achieved under lower coverage projection and accelerated introduction strategy, with 39 million measles cases averted. Measles treatment cost is a key driver of the net cost of introduction. In countries with a relatively higher income, introducing MR-MAPs could be a cost-saving intervention due to reduced treatment costs. Compared with country-specific health opportunity costs, introducing MR-MAPs would be cost-effective in 16%-81% of LMICs, depending on the MR-MAPs procurement prices and vaccine coverage projections. CONCLUSIONS Introducing MR-MAPs in LMICs can be a cost-effective strategy to revitalise measles immunisation programmes with stagnant uptake and reach undervaccinated children. Sustainable introduction and uptake of MR-MAPs has the potential to improve vaccine equity within and between countries and accelerate progress towards measles elimination.
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Affiliation(s)
- Han Fu
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | - Kaja Abbas
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK
- Public Health Foundation of India, New Delhi, India
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
| | | | | | - Melissa Ko
- MMGH Consulting GmbH, Zurich, Switzerland
| | | | - Mark Jit
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK
- School of Public Health, The University of Hong Kong, Hong Kong SAR, People's Republic of China
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Dadari I, Sharkey A, Hoare I, Izurieta R. Analysis of the impact of COVID-19 pandemic and response on routine childhood vaccination coverage and equity in Northern Nigeria: a mixed methods study. BMJ Open 2023; 13:e076154. [PMID: 37852768 PMCID: PMC10603460 DOI: 10.1136/bmjopen-2023-076154] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 09/28/2023] [Indexed: 10/20/2023] Open
Abstract
BACKGROUND Based on 2021 data, Nigeria had the second largest number of zero-dose children globally estimated at over 2.25 million, concentrated in the northern part of the country due to factors some of which are sociocultural. This study analysed the impact of the COVID-19 pandemic and response on childhood vaccination in Northern Nigeria. METHODS Using a mixed methods sequential study design in the most populous northern states of Kaduna and Kano, quantitative routine immunisation data for the period 2018-2021 and qualitative data collected through 16 focus group discussions and 40 key informant interviews were used. An adaptation of the socioecological model was used as a conceptual framework. Mean vaccination coverages and test of statistical difference in childhood vaccination data were computed. Qualitative data were coded and analysed thematically. RESULTS Mean Penta 1 coverage declined in Kaduna from 69.88% (SD=21.02) in 2018 to 59.54% (SD=19.14%) by 2021, contrasting with Kano where mean Penta 1 coverage increased from 51.87% (SD=12.61) to 56.32% (SD=17.62%) over the same period. Outreaches and vaccination in urban areas declined for Kaduna state by 10% over the pandemic period in contrast to Kano state where it showed a marginal increase. The two states combined had an estimated 25% of the country's zero-dose burden in 2021. Lockdowns, lack of transport and no outreaches which varied across the states were some of the factors mentioned by participants to have negatively impacted childhood vaccination. Special vaccination outreaches were among the recommendations for ensuring continued vaccination through a future pandemic. CONCLUSION While further interrogating the accuracy of denominator estimates for the urban population, incorporating findings into pandemic preparedness and response will ensure uninterrupted childhood vaccination during emergencies. Addressing the identified issues will be critical to achieving and sustaining universal childhood vaccination in Nigeria.
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Affiliation(s)
- Ibrahim Dadari
- College of Public Health, University of South Florida, Tampa, Florida, USA
- PG-Health-Immunization, United Nations Children's Fund, New York, New York, USA
| | - Alyssa Sharkey
- School of Public and International Affairs, Princeton University, Princeton, New Jersey, USA
| | - Ismael Hoare
- College of Public Health, University of South Florida, Tampa, Florida, USA
| | - Ricardo Izurieta
- College of Public Health, University of South Florida, Tampa, Florida, USA
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Eyal K, Njozela L, Köhler T, Ingle K, Brophy T, Buttenheim A, Maughan-Brown B. Correlates of COVID-19 vaccination intentions and opinions about mandates among four groups of adults in South Africa with distinct vaccine intentions: evidence from a large national survey. BMC Public Health 2023; 23:1767. [PMID: 37697314 PMCID: PMC10494356 DOI: 10.1186/s12889-023-16584-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 08/22/2023] [Indexed: 09/13/2023] Open
Abstract
INTRODUCTION Despite a high number of recorded COVID-19 infections and deaths in South Africa, COVID-19 vaccine coverage remained low in March 2022, ten months into the national vaccine roll-out. This study provides evidence on the correlates of vaccine intentions, attitudes towards vaccination and opinions about mandates. METHODS We used data from the second COVID-19 Vaccine Survey (CVACS), a telephone survey conducted February-March 2022 among 3,608 South African adults who self-reported not being vaccinated against COVID-19. The survey instrument was designed in consultation with government, policymakers, and civil society; and segmented the sample into four distinct groups with different vaccine intentions (synonymous with vaccine hesitancy levels). Kruskal-Wallis and Mann-Whitney tests were used to examine the sociodemographic characteristics, attitudes and behaviours associated with the different vaccination intentions groups. Thematic coding of responses to open-ended questions elicited insights on reasons for not being vaccinated and attitudes towards mandates. RESULTS Intentions to get vaccinated were greater among individuals with lower socio-economic status (Mann-Whitney Z = -11.3, p < 0.001); those believing the vaccine protects against death (Kruskal-Wallis Χ2 = 494, p < 0.001); and those who perceived themselves at risk of COVID-19-related illness (Χ2 = 126, p < 0.01). Vaccine intentions were lower among individuals who believed that the vaccine causes death (Χ2 = 163, p < 0.001); believed that the vaccine is unsafe for the babies of pregnant/breastfeeding mothers, or the chronically ill (Χ2 = 123, p < 0.01); those not trusting government health information about COVID-19 and the COVID-19 vaccine (Kendall's τ = -0.41, p < 0.01); and those in opposition to mandates (τ = 0.35, p < 0.001). Only 25% supported mandates, despite 48% thinking mandates would work well, with 54% citing individual rights as their main reason for mandate opposition. CONCLUSION The profile of individuals not vaccinated against COVID-19 as of March 2022 varied markedly by self-reported vaccination intentions, underscoring the importance of tailored demand-creation efforts. This paper highlights several factors which differ significantly across these groups. These findings could inform the design of future vaccination campaigns, potentially increasing their likelihood of success. This is an important policy objective given widespread vaccine hesitancy, and further work is required on this topic. Mandates remain an option to increase coverage but need to be carefully considered given extensive opposition.
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Affiliation(s)
- Katherine Eyal
- Southern Africa Labour and Development Research Unit, School of Economics, University of Cape Town, Cape Town, South Africa.
| | - Lindokuhle Njozela
- Southern Africa Labour and Development Research Unit, School of Economics, University of Cape Town, Cape Town, South Africa
| | - Timothy Köhler
- Development Policy Research Unit, University of Cape Town, Cape Town, South Africa
| | - Kim Ingle
- Southern Africa Labour and Development Research Unit, School of Economics, University of Cape Town, Cape Town, South Africa
| | - Timothy Brophy
- Southern Africa Labour and Development Research Unit, School of Economics, University of Cape Town, Cape Town, South Africa
| | - Alison Buttenheim
- Department of Family and Community Health, University of Pennsylvania School of Nursing, 416 Fagin Hall, 418 Curie Blvd, Philadelphia, PA, 19104, USA
| | - Brendan Maughan-Brown
- Southern Africa Labour and Development Research Unit, School of Economics, University of Cape Town, Cape Town, South Africa
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19
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Wariri O, Utazi CE, Okomo U, Metcalf CJE, Sogur M, Fofana S, Murray KA, Grundy C, Kampmann B. Mapping the timeliness of routine childhood vaccination in The Gambia: A spatial modelling study. Vaccine 2023; 41:5696-5705. [PMID: 37563051 DOI: 10.1016/j.vaccine.2023.08.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/29/2023] [Accepted: 08/01/2023] [Indexed: 08/12/2023]
Abstract
INTRODUCTION Timeliness of routine vaccination shapes childhood infection risk and thus is an important public health metric. Estimates of indicators of the timeliness of vaccination are usually produced at the national or regional level, which may conceal epidemiologically relevant local heterogeneities and makeitdifficultto identify pockets of vulnerabilities that could benefit from targeted interventions. Here, we demonstrate the utility of geospatial modelling techniques in generating high-resolution maps of the prevalence of delayed childhood vaccination in The Gambia. To guide local immunisation policy and prioritize key interventions, we also identified the districts with a combination of high estimated prevalence and a significant population of affected infants. METHODS We used the birth dose of the hepatitis-B vaccine (HepB0), third-dose of the pentavalent vaccine (PENTA3), and the first dose of measles-containing vaccine (MCV1) as examples to map delayed vaccination nationally at a resolution of 1 × 1-km2 pixel. We utilized cluster-level childhood vaccination data from The Gambia 2019-20 Demographic and Health Survey. We adopted a fully Bayesian geostatistical model incorporating publicly available geospatial covariates to aid predictive accuracy. The model was implemented using the integrated nested Laplace approximation-stochastic partial differential equation (INLA-SPDE) approach. RESULTS We found significant subnational heterogeneity in delayed HepB0, PENTA3 and MCV1 vaccinations. Specificdistricts in the central and eastern regions of The Gambia consistentlyexhibited the highest prevalence of delayed vaccination, while the coastal districts showed alower prevalence forallthree vaccines. We also found that districts in the eastern, central, as well as in coastal parts of The Gambia had a combination of high estimated prevalence of delayed HepB0, PENTA3 and MCV1 and a significant population of affected infants. CONCLUSIONS Our approach provides decision-makers with a valuable tool to better understand local patterns of untimely childhood vaccination and identify districts where strengthening vaccine delivery systems could have the greatest impact.
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Affiliation(s)
- Oghenebrume Wariri
- Vaccines and Immunity Theme, MRC Unit The Gambia a London School of Hygiene and Tropical Medicine, Fajara, Gambia; Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom; Vaccine Centre, London School of Hygiene and Tropical Medicine, London, United Kingdom.
| | - Chigozie Edson Utazi
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton, United Kingdom; Southampton Statistical Sciences Research Institute, University of Southampton, Southampton, United Kingdom
| | - Uduak Okomo
- Vaccines and Immunity Theme, MRC Unit The Gambia a London School of Hygiene and Tropical Medicine, Fajara, Gambia; MARCH Centre, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - C Jessica E Metcalf
- Department of Ecology & Evolutionary Biology, Princeton University, Princeton, NJ, USA
| | - Malick Sogur
- Expanded Programme on Immunization, Ministry of Health and Social Welfare, The Gambia, Banjul, Gambia
| | - Sidat Fofana
- Expanded Programme on Immunization, Ministry of Health and Social Welfare, The Gambia, Banjul, Gambia
| | - Kris A Murray
- Centre on Climate Change and Planetary Health, MRC Unit The Gambia at The London School of Hygiene and Tropical Medicine, Fajara, Gambia
| | - Chris Grundy
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Beate Kampmann
- Vaccines and Immunity Theme, MRC Unit The Gambia a London School of Hygiene and Tropical Medicine, Fajara, Gambia; Vaccine Centre, London School of Hygiene and Tropical Medicine, London, United Kingdom; Centre for Global Health, Charité Universitatsmedizin, Berlin, Germany
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Sbarra AN, Rolfe S, Haeuser E, Nguyen JQ, Adamu A, Adeyinka D, Ajumobi O, Akunna C, Amusa G, Dahiru T, Ekholuenetale M, Esezobor C, Fowobaje K, Hay SI, Ibeneme C, Ibitoye SE, Ilesanmi O, Kayode G, Krohn K, Lim SS, Medeiros LE, Mohammed S, Nwatah V, Okoro A, Olagunju AT, Olusanya BO, Osarenotor O, Owolabi M, Pickering B, Sufiyan MB, Uzochukwu B, Walker A, Mosser JF. Estimating vaccine coverage in conflict settings using geospatial methods: a case study in Borno state, Nigeria. Sci Rep 2023; 13:11085. [PMID: 37422502 PMCID: PMC10329660 DOI: 10.1038/s41598-023-37947-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 06/30/2023] [Indexed: 07/10/2023] Open
Abstract
Reliable estimates of subnational vaccination coverage are critical to track progress towards global immunisation targets and ensure equitable health outcomes for all children. However, conflict can limit the reliability of coverage estimates from traditional household-based surveys due to an inability to sample in unsafe and insecure areas and increased uncertainty in underlying population estimates. In these situations, model-based geostatistical (MBG) approaches offer alternative coverage estimates for administrative units affected by conflict. We estimated first- and third-dose diphtheria-tetanus-pertussis vaccine coverage in Borno state, Nigeria, using a spatiotemporal MBG modelling approach, then compared these to estimates from recent conflict-affected, household-based surveys. We compared sampling cluster locations from recent household-based surveys to geolocated data on conflict locations and modelled spatial coverage estimates, while also investigating the importance of reliable population estimates when assessing coverage in conflict settings. These results demonstrate that geospatially-modelled coverage estimates can be a valuable additional tool to understand coverage in locations where conflict prevents representative sampling.
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Affiliation(s)
- Alyssa N Sbarra
- Institute for Health Metrics and Evaluation, University of Washington, 3980 15th Ave NE, Seattle, WA, 98105, USA.
| | - Sam Rolfe
- Institute for Health Metrics and Evaluation, University of Washington, 3980 15th Ave NE, Seattle, WA, 98105, USA
| | - Emily Haeuser
- Institute for Health Metrics and Evaluation, University of Washington, 3980 15th Ave NE, Seattle, WA, 98105, USA
| | - Jason Q Nguyen
- Institute for Health Metrics and Evaluation, University of Washington, 3980 15th Ave NE, Seattle, WA, 98105, USA
| | - Aishatu Adamu
- Community Medicine Department, Bayero University Kano, Kano, Nigeria
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Daniel Adeyinka
- Department of Community Health and Epidemiology, University of Saskatchewan, Saskatoon, Canada
- Department of Public Health, Federal Ministry of Health, Abuja, Nigeria
| | - Olufemi Ajumobi
- School of Public Health, University of Nevada Reno, Reno, USA
- National Malaria Elimination Program, Federal Ministry of Health, Abuja, Nigeria
| | - Chisom Akunna
- Department of Public Health, Federal Ministry of Health, Abuja, Nigeria
- Department of Public Health, The Intercountry Centre for Oral Health (ICOH) for Africa, Jos, Nigeria
| | - Ganiyu Amusa
- Department of Medicine, University of Jos, Jos, Nigeria
- Department of Internal Medicine, Jos University Teaching Hospital, Jos, Nigeria
| | - Tukur Dahiru
- Department of Community Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Michael Ekholuenetale
- Department of Epidemiology and Medical Statistics, University of Ibadan, Ibadan, Nigeria
- Faculty of Public Health, University of Ibadan, Ibadan, Nigeria
| | - Christopher Esezobor
- Department of Paediatrics, University of Lagos, Lagos, Nigeria
- Department of Paediatrics, Lagos University Teaching Hospital, Lagos, Nigeria
| | - Kayode Fowobaje
- Department of Epidemiology and Medical Statistics, University of Ibadan, Ibadan, Nigeria
- Child Survival Unit, Centre for African Newborn Health and Nutrition, Ibadan, Nigeria
| | - Simon I Hay
- Institute for Health Metrics and Evaluation, University of Washington, 3980 15th Ave NE, Seattle, WA, 98105, USA
- Department of Health Metrics Sciences, University of Washington, Seattle, USA
| | - Charles Ibeneme
- Department of Public Health and Disease Control, Abia State Ministry of Health, Umuahia, Nigeria
- Nigerian Field Epidemiology and Laboratory Training Program, African Field Epidemiology Network, Abuja, Nigeria
| | | | - Olayinka Ilesanmi
- Department of Community Medicine, University of Ibadan, Ibadan, Nigeria
- Department of Community Medicine, University College Hospital, Ibadan, Nigeria
| | - Gbenga Kayode
- International Research Center of Excellence, Institute of Human Virology Nigeria, Abuja, Nigeria
- Julius Centre for Health Sciences and Primary Care, Utrecht University, Utrecht, The Netherlands
| | - Kris Krohn
- Institute for Health Metrics and Evaluation, University of Washington, 3980 15th Ave NE, Seattle, WA, 98105, USA
| | - Stephen S Lim
- Institute for Health Metrics and Evaluation, University of Washington, 3980 15th Ave NE, Seattle, WA, 98105, USA
- Department of Health Metrics Sciences, University of Washington, Seattle, USA
| | - Lyla E Medeiros
- Institute for Health Metrics and Evaluation, University of Washington, 3980 15th Ave NE, Seattle, WA, 98105, USA
| | - Shafiu Mohammed
- Health Systems and Policy Research Unit, Ahmadu Bello University, Zaria, Nigeria
- Department of Healthcare Management, Technical University of Berlin, Berlin, Germany
| | - Vincent Nwatah
- Department of Pediatrics, National Hospital Abuja, Abuja, Nigeria
- Department of International Public Health, University of Liverpool, Liverpool, UK
| | | | - Andrew T Olagunju
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Canada
- Department of Psychiatry, University of Lagos, Lagos, Nigeria
| | | | - Osayomwanbo Osarenotor
- Department of Environmental Management and Toxicology, University of Benin, Benin City, Nigeria
| | - Mayowa Owolabi
- Department of Medicine, University of Ibadan, Ibadan, Nigeria
- Department of Medicine, University College Hospital, Ibadan, Nigeria
| | - Brandon Pickering
- Institute for Health Metrics and Evaluation, University of Washington, 3980 15th Ave NE, Seattle, WA, 98105, USA
| | | | - Benjamin Uzochukwu
- Department of Community Medicine, University of Nigeria Nsukka, Nsukka, Nigeria
| | - Ally Walker
- Institute for Health Metrics and Evaluation, University of Washington, 3980 15th Ave NE, Seattle, WA, 98105, USA
| | - Jonathan F Mosser
- Institute for Health Metrics and Evaluation, University of Washington, 3980 15th Ave NE, Seattle, WA, 98105, USA.
- Department of Health Metrics Sciences, University of Washington, Seattle, USA.
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Blake A, Hazel A, Jakurama J, Matundu J, Bharti N. Disparities in mobile phone ownership reflect inequities in access to healthcare. PLOS DIGITAL HEALTH 2023; 2:e0000270. [PMID: 37410708 DOI: 10.1371/journal.pdig.0000270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 05/05/2023] [Indexed: 07/08/2023]
Abstract
Human movement and population connectivity inform infectious disease management. Remote data, particularly mobile phone usage data, are frequently used to track mobility in outbreak response efforts without measuring representation in target populations. Using a detailed interview instrument, we measure population representation in phone ownership, mobility, and access to healthcare in a highly mobile population with low access to health care in Namibia, a middle-income country. We find that 1) phone ownership is both low and biased by gender, 2) phone ownership is correlated with differences in mobility and access to healthcare, and 3) reception is spatially unequal and scarce in non-urban areas. We demonstrate that mobile phone data do not represent the populations and locations that most need public health improvements. Finally, we show that relying on these data to inform public health decisions can be harmful with the potential to magnify health inequities rather than reducing them. To reduce health inequities, it is critical to integrate multiple data streams with measured, non-overlapping biases to ensure data representativeness for vulnerable populations.
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Affiliation(s)
- Alexandre Blake
- Biology Department, Center for Infectious Disease Dynamics, Penn State University, University Park, Pennsylvania, United States of America
| | - Ashley Hazel
- Francis I. Proctor Foundation, University of California, San Francisco, California, United States of America
| | | | | | - Nita Bharti
- Biology Department, Center for Infectious Disease Dynamics, Penn State University, University Park, Pennsylvania, United States of America
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22
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Toghroli R, Aghamolaei T, Hassani L, Ramezaninejad V, Yoosefi Lebni J, NeJhaddadgar N, Mehedi N, Ziapour A. Investigating the predictors of perceived social support to control COVID-19: A qualitative study. Heliyon 2023; 9:e16878. [PMID: 37274709 PMCID: PMC10234343 DOI: 10.1016/j.heliyon.2023.e16878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/17/2023] [Accepted: 05/31/2023] [Indexed: 06/06/2023] Open
Abstract
Background Considering the adverse effects of COVID-19 pandemic, the present study aimed to explore the barriers and facilitators of perceived social support to prevent the further spread of the disease. Methods In the present qualitative study, a content analysis was done. To this aim, 37 Iranian subjects who had active accounts on Instagram were initially invited to participate in the study. The data were collected through face-to-face (n = 25) and telephone conversations (n = 12). A purposive sampling was used and the data collection continued until data saturation. Finally, 41 interviews were held which took 17-48 min. Results The data analysis led to the extraction of two main categories, the barriers and facilitators of perceived social support, as well as 12 subcategories. Economic issues, familial factors, socio-cultural factors, personal and psychological factors, ineffective quarantine rules, and poor management were the main barriers to perceived social support. The facilitators were divided into six categories, including familial influences, personal factors, government support, and improved occupational, social, spiritual, and emotional condition. Conclusion The findings showed that a combination of environmental and social variables might influence the COVID-19 disease, either decreasing or increasing its spread. A sound knowledge of these variables, influenced by the social context and real-life experiences during the pandemic, allows to take the right measures and enrich training programs. The prevalence of the disease can be controlled by increasing environmental and social facilitators and decreasing the influence of barriers.
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Affiliation(s)
- Razie Toghroli
- Social Determinants in Health Promotion Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Teamour Aghamolaei
- Cardiovascular Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Laleh Hassani
- Department of Health Promotion and Education, School of Health, Mother and Child Welfare Research Center Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Vahid Ramezaninejad
- Department of Political Science, Baft Branch, Islamic Azad University, Baft, Iran
| | - Javad Yoosefi Lebni
- Social Determinants of Health Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Nazila NeJhaddadgar
- Social Determinants of Health Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Nafiul Mehedi
- Department of Social Work, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | - Arash Ziapour
- Cardiovascular Research Center, Health Institute, Imam-Ali Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
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23
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Feng YX, Hu H, Wong YY, Yao X, He ML. Microneedles: An Emerging Vaccine Delivery Tool and a Prospective Solution to the Challenges of SARS-CoV-2 Mass Vaccination. Pharmaceutics 2023; 15:pharmaceutics15051349. [PMID: 37242591 DOI: 10.3390/pharmaceutics15051349] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/23/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
Vaccination is an effective measure to prevent infectious diseases. Protective immunity is induced when the immune system is exposed to a vaccine formulation with appropriate immunogenicity. However, traditional injection vaccination is always accompanied by fear and severe pain. As an emerging vaccine delivery tool, microneedles overcome the problems associated with routine needle vaccination, which can effectively deliver vaccines rich in antigen-presenting cells (APCs) to the epidermis and dermis painlessly, inducing a strong immune response. In addition, microneedles have the advantages of avoiding cold chain storage and have the flexibility of self-operation, which can solve the logistics and delivery obstacles of vaccines, covering the vaccination of the special population more easily and conveniently. Examples include people in rural areas with restricted vaccine storage facilities and medical professionals, elderly and disabled people with limited mobility, infants and young children afraid of pain. Currently, in the late stage of fighting against COVID-19, the main task is to increase the coverage of vaccines, especially for special populations. To address this challenge, microneedle-based vaccines have great potential to increase global vaccination rates and save many lives. This review describes the current progress of microneedles as a vaccine delivery system and its prospects in achieving mass vaccination against SARS-CoV-2.
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Affiliation(s)
- Ya-Xiu Feng
- Department of Biomedical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR, China
| | - Huan Hu
- Department of Biomedical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR, China
| | - Yu-Yuen Wong
- Department of Biomedical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR, China
| | - Xi Yao
- Department of Biomedical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR, China
| | - Ming-Liang He
- Department of Biomedical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR, China
- CityU Shenzhen Research Institute, Shenzhen 518071, China
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24
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Haeuser E, Nguyen JQ, Rolfe S, Nesbit O, Fullman N, Mosser JF. Assessing Geographic Overlap between Zero-Dose Diphtheria-Tetanus-Pertussis Vaccination Prevalence and Other Health Indicators. Vaccines (Basel) 2023; 11:802. [PMID: 37112714 PMCID: PMC10144604 DOI: 10.3390/vaccines11040802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/17/2023] [Accepted: 03/29/2023] [Indexed: 04/08/2023] Open
Abstract
The integration of immunization with other essential health services is among the strategic priorities of the Immunization Agenda 2030 and has the potential to improve the effectiveness, efficiency, and equity of health service delivery. This study aims to evaluate the degree of spatial overlap between the prevalence of children who have never received a dose of the diphtheria-tetanus-pertussis-containing vaccine (no-DTP) and other health-related indicators, to provide insight into the potential for joint geographic targeting of integrated service delivery efforts. Using geospatially modeled estimates of vaccine coverage and comparator indicators, we develop a framework to delineate and compare areas of high overlap across indicators, both within and between countries, and based upon both counts and prevalence. We derive summary metrics of spatial overlap to facilitate comparison between countries and indicators and over time. As an example, we apply this suite of analyses to five countries-Nigeria, Democratic Republic of the Congo (DRC), Indonesia, Ethiopia, and Angola-and five comparator indicators-children with stunting, under-5 mortality, children missing doses of oral rehydration therapy, prevalence of lymphatic filariasis, and insecticide-treated bed net coverage. Our results demonstrate substantial heterogeneity in the geographic overlap both within and between countries. These results provide a framework to assess the potential for joint geographic targeting of interventions, supporting efforts to ensure that all people, regardless of location, can benefit from vaccines and other essential health services.
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Affiliation(s)
- Emily Haeuser
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA 98195, USA
| | - Jason Q. Nguyen
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA 98195, USA
| | - Sam Rolfe
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA 98195, USA
| | - Olivia Nesbit
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA 98195, USA
| | - Nancy Fullman
- Department of Global Health, School of Medicine and School of Public Health, University of Washington, Seattle, WA 98195, USA
| | - Jonathan F. Mosser
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA 98195, USA
- Department of Health Metrics Sciences, School of Medicine, University of Washington, Seattle, WA 98195, USA
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25
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Tang K, Eilerts H, Imohe A, Adams KP, Sandalinas F, Moloney G, Joy E, Hasman A. Evaluating equity dimensions of infant and child vitamin A supplementation programmes using Demographic and Health Surveys from 49 countries. BMJ Open 2023; 13:e062387. [PMID: 36918231 PMCID: PMC10016247 DOI: 10.1136/bmjopen-2022-062387] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
OBJECTIVES Vitamin A deficiency affects an estimated 29% of all children under 5 years of age in low/middle-income countries, contributing to child mortality and exacerbating severity of infections. Biannual vitamin A supplementation (VAS) for children aged 6-59 months can be a low-cost intervention to meet vitamin A needs. This study aimed to present a framework for evaluating the equity dimensions of national VAS programmes according to determinants known to affect child nutrition and assist programming by highlighting geographical variation in coverage. METHODS We used open-source data from the Demographic and Health Survey for 49 countries to identify differences in VAS coverage between subpopulations characterised by various immediate, underlying and enabling determinants of vitamin A status and geographically. This included recent consumption of vitamin A-rich foods, access to health systems and services, administrative region of the country, place of residence (rural vs urban), socioeconomic position, caregiver educational attainment and caregiver empowerment. RESULTS Children who did not recently consume vitamin A-rich foods and who had poorer access to health systems and services were less likely to receive VAS in most countries despite potentially having a greater vitamin A need. Differences in coverage were also observed when disaggregated by administrative regions (88% of countries) and urban versus rural residence (35% of countries). Differences in vitamin A coverage between subpopulations characterised by other determinants of vitamin A status varied considerably between countries. CONCLUSION VAS programmes are unable to reach all eligible infants and children, and subpopulation differences in VAS coverage characterised by various determinants of vitamin A status suggest that VAS programmes may not be operating equitably in many countries.
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Affiliation(s)
- Kevin Tang
- Department of Population Health, London School of Hygiene & Tropical Medicine, London, UK
- Programme Division, UNICEF, New York City, New York, USA
| | - Hallie Eilerts
- Department of Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - Annette Imohe
- Programme Division, UNICEF, New York City, New York, USA
| | - Katherine P Adams
- Institute for Global Nutrition, University of California Davis, Davis, California, USA
| | - Fanny Sandalinas
- Department of Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | | | - Edward Joy
- Department of Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - Andreas Hasman
- Programme Division, UNICEF, New York City, New York, USA
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26
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Hirae K, Hoshina T, Koga H. Impact of the COVID-19 pandemic on the epidemiology of other communicable diseases in Japan. Int J Infect Dis 2023; 128:265-271. [PMID: 36642212 PMCID: PMC9837205 DOI: 10.1016/j.ijid.2023.01.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 12/29/2022] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVES To elucidate the impact of the COVID-19 pandemic on the epidemiology of other infectious diseases. DESIGN We investigated the epidemiology of 36 communicable diseases during 2015-2021 in Japan and compared the number of cases in each disease between the prepandemic (2015-2019) and intrapandemic (2020-2021) periods. Relationships between the incidence of the infectious diseases and the COVID-19 pandemic were also investigated. RESULTS Of 36 communicable diseases, the number of cases in the 27 diseases (75%) mainly caused by pathogens transmitted by droplet or contact was lower intrapandemic than prepandemic, and the cases of 21 diseases (58%) continued to decrease intrapandemic. The number of cases of six diseases (17%) was higher intrapandemic than prepandemic, and the cases of two diseases (5.6%), Japanese spotted fever and syphilis, continued to increase intrapandemic. Time trend analyses revealed a positive correlation between case numbers of communicable diseases and the COVID-19 pandemic, whereas the case numbers of hand-foot-and-mouth disease and respiratory syncytial virus infection rebounded in 2021 after decreasing in 2020. CONCLUSION The COVID-19 pandemic has greatly impacted the epidemiology of communicable diseases, suggesting that countermeasures against COVID-19 and lifestyle changes might be involved in these epidemiological changes.
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Affiliation(s)
- Kenji Hirae
- Department of Pediatrics, National Hospital Organization Beppu Medical Center, Beppu, Japan.
| | - Takayuki Hoshina
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
| | - Hiroshi Koga
- Department of Pediatrics, National Hospital Organization Beppu Medical Center, Beppu, Japan.
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27
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Bender RG, Shen J, Aravkin A, Bita Fouda AA, Bwaka AM, Galles NC, Haeuser E, Hay SI, Latt A, Mwenda JM, Rogowski EL, Sbarra AN, Sorensen RJ, Vongpradith A, Wright C, Zheng P, Mosser JF, Kyu HH. Meningococcal A conjugate vaccine coverage in the meningitis belt of Africa from 2010 to 2021: a modelling study. EClinicalMedicine 2023; 56:101797. [PMID: 36880052 PMCID: PMC9985031 DOI: 10.1016/j.eclinm.2022.101797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 12/02/2022] [Accepted: 12/05/2022] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND As of the end of 2021, twenty-four countries in the African meningitis belt have rolled out mass campaigns of MenAfriVac®, a meningococcal A conjugate vaccine (MACV) first introduced in 2010. Twelve have completed introduction of MACV into routine immunisation (RI) schedules. Although select post-campaign coverage data are published, no study currently comprehensively estimates MACV coverage from both routine and campaign sources in the meningitis belt across age, country, and time. METHODS In this modelling study, we assembled campaign data from the twenty-four countries that had introduced any immunisation activity during or before the year 2021 (Benin, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Côte d'Ivoire, Democratic Republic of the Congo, Ethiopia, Eritrea, the Gambia, Ghana, Guinea, Guinea Bissau, Kenya, Mali, Mauritania, Niger, Nigeria, Senegal, South Sudan, Sudan, Togo and Uganda) via WHO reports and RI data via systematic review. Next, we modelled RI coverage using Spatiotemporal Gaussian Process Regression. Then, we synthesized these estimates with campaign data into a cohort model, tracking coverage for each age cohort from age 1 to 29 years over time for each country. FINDINGS Coverage in high-risk locations amongst children aged 1-4 in 2021 was estimated to be highest in Togo with 96.0% (95% uncertainty interval [UI] 92.0-99.0), followed by Niger with 87.2% (95% UI 85.3-89.0) and Burkina Faso, with 86.4% (95% UI 85.1-87.6). These countries had high coverage values driven by an initial successful mass immunisation campaign, followed by a catch-up campaign, followed by introduction of RI. Due to the influence of older mass vaccination campaigns, coverage proportions skewed higher in the 1-29 age group than the 1-4 group, with a median coverage of 82.9% in 2021 in the broader age group compared to 45.6% in the narrower age group. INTERPRETATION These estimates highlight where gaps in immunisation remain and emphasise the need for broader efforts to strengthen RI systems. This methodological framework can be applied to estimate coverage for any vaccine that has been delivered in both routine and supplemental immunisation activities. FUNDING Bill and Melinda Gates Foundation.
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Affiliation(s)
- Rose G. Bender
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, University of Washington, Seattle, WA, USA
| | - Jasmine Shen
- School of Medicine, University of Washington, Seattle, WA, USA
| | - Aleksandr Aravkin
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Applied Mathematics, University of Washington, Seattle, WA, USA
| | | | - Ado M. Bwaka
- World Health Organization Regional Office for Africa, Inter-Country Support Team, Ouagadougou, Burkina Faso
| | - Natalie C. Galles
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Emily Haeuser
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Simon I. Hay
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, University of Washington, Seattle, WA, USA
| | - Anderson Latt
- World Health Organization Regional Office for Africa, Emergency Preparedness and Response Cluster, Dakar Emergency Hub, Dakar, Senegal
| | - Jason M. Mwenda
- World Health Organization Regional Office for Africa, Brazzaville, Republic of Congo
| | - Emma L.B. Rogowski
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Alyssa N. Sbarra
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Reed J.D. Sorensen
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Avina Vongpradith
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | | | - Peng Zheng
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, University of Washington, Seattle, WA, USA
| | - Jonathan F. Mosser
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, University of Washington, Seattle, WA, USA
- Corresponding author. Institute for Health Metrics and Evaluation, University of Washington, 3980 15th Ave NE, Seattle, WA 98105, USA.
| | - Hmwe H. Kyu
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, University of Washington, Seattle, WA, USA
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Prosperi C, Thangaraj J, Hasan A, Kumar M, Truelove S, Kumar V, Winter A, Bansal A, Chauhan S, Grover G, Jain A, Kulkarni R, Sharma S, Soman B, Chaaithanya I, Kharwal S, Mishra S, Salvi N, Sharma N, Sharma S, Varghese A, Sabarinathan R, Duraiswamy A, Rani D, Kanagasabai K, Lachyan A, Gawali P, Kapoor M, Chonker S, Cutts F, Sangal L, Mehendale S, Sapkal G, Gupta N, Hayford K, Moss W, Murhekar M. Added value of the measles-rubella supplementary immunization activity in reaching unvaccinated and under-vaccinated children, a cross-sectional study in five Indian districts, 2018-20. Vaccine 2023; 41:486-495. [PMID: 36481106 PMCID: PMC9831119 DOI: 10.1016/j.vaccine.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 10/29/2022] [Accepted: 11/04/2022] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Supplementary immunization activities (SIAs) aim to interrupt measles transmission by reaching susceptible children, including children who have not received the recommended two routine doses of MCV before the SIA. However, both strategies may miss the same children if vaccine doses are highly correlated. How well SIAs reach children missed by routine immunization is a key metric in assessing the added value of SIAs. METHODS Children aged 9 months to younger than 5 years were enrolled in cross-sectional household serosurveys conducted in five districts in India following the 2017-2019 measles-rubella (MR) SIA. History of measles containing vaccine (MCV) through routine services or SIA was obtained from documents and verbal recall. Receipt of a first or second MCV dose during the SIA was categorized as "added value" of the SIA in reaching un- and under-vaccinated children. RESULTS A total of 1,675 children were enrolled in these post-SIA surveys. The percentage of children receiving a 1st or 2nd dose through the SIA ranged from 12.8% in Thiruvananthapuram District to 48.6% in Dibrugarh District. Although the number of zero-dose children prior to the SIA was small in most sites, the proportion reached by the SIA ranged from 45.8% in Thiruvananthapuram District to 94.9% in Dibrugarh District. Fewer than 7% of children remained measles zero-dose after the MR SIA (range: 1.1-6.4%) compared to up to 28% before the SIA (range: 7.3-28.1%). DISCUSSION We demonstrated the MR SIA provided considerable added value in terms of measles vaccination coverage, although there was variability across districts due to differences in routine and SIA coverage, and which children were reached by the SIA. Metrics evaluating the added value of an SIA can help to inform the design of vaccination strategies to better reach zero-dose or undervaccinated children.
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Affiliation(s)
- C. Prosperi
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - J.W.V. Thangaraj
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
| | - A.Z. Hasan
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - M.S. Kumar
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
| | - S. Truelove
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - V.S. Kumar
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
| | - A.K. Winter
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - A.K. Bansal
- ICMR-National JALMA Institute for Leprosy & Other Mycobacterial Diseases, Agra, India
| | - S.L. Chauhan
- ICMR- National Institute for Research in Reproductive and Child Health (NIRRCH), Mumbai, India
| | - G.S. Grover
- Directorate of Health Services, Government of Punjab, Chandigarh, India
| | - A.K. Jain
- ICMR-National Institute of Pathology, New Delhi, India
| | - R.N. Kulkarni
- ICMR- National Institute for Research in Reproductive and Child Health (NIRRCH), Mumbai, India
| | - S.K. Sharma
- ICMR-Regional Medical Research Centre, NE Region, Dibrugarh, India
| | - B. Soman
- Achutha Menon Centre for Health Science Studies, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | - I.K. Chaaithanya
- Department of Health Research, Model Rural Health Research Unit-Dahanu, Maharashtra, India
| | - S. Kharwal
- Department of Health Research, Model Rural Health Research Unit-Hoshiarpur, Punjab, India
| | - S.K. Mishra
- Department of Health Research, Model Rural Health Research Unit-Hoshiarpur, Punjab, India
| | - N.R. Salvi
- Department of Health Research, Model Rural Health Research Unit-Dahanu, Maharashtra, India
| | - N.P. Sharma
- Department of Health Research, Model Rural Health Research Unit-Chabua, Assam, India
| | - S. Sharma
- Department of Health Research, Model Rural Health Research Unit-Kanpur, Uttar Pradesh, India
| | - A. Varghese
- Achutha Menon Centre for Health Science Studies, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | - R. Sabarinathan
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
| | - A. Duraiswamy
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
| | - D.S. Rani
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
| | - K. Kanagasabai
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
| | - A. Lachyan
- Department of Health Research, Model Rural Health Research Unit-Dahanu, Maharashtra, India
| | - P. Gawali
- Department of Health Research, Model Rural Health Research Unit-Dahanu, Maharashtra, India
| | - M. Kapoor
- Department of Health Research, Model Rural Health Research Unit-Dahanu, Maharashtra, India
| | - S.K. Chonker
- Department of Health Research, Model Rural Health Research Unit-Kanpur, Uttar Pradesh, India
| | - F.T. Cutts
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - L. Sangal
- World Health Organization, Southeast Asia Region Office, New Delhi, India
| | - S.M. Mehendale
- PD Hinduja Hospital and Medical Research Centre, Mumbai, India
| | - G.N. Sapkal
- ICMR-National Institute of Virology, Pune, India
| | - N. Gupta
- Division of Epidemiology and Communicable Diseases, Indian Council of Medical Research, New Delhi, India
| | - K. Hayford
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - W.J. Moss
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA,Corresponding author at: International Vaccine Access Center, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA.
| | - M.V. Murhekar
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
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29
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Utazi CE, Aheto JMK, Wigley A, Tejedor-Garavito N, Bonnie A, Nnanatu CC, Wagai J, Williams C, Setayesh H, Tatem AJ, Cutts FT. Mapping the distribution of zero-dose children to assess the performance of vaccine delivery strategies and their relationships with measles incidence in Nigeria. Vaccine 2023; 41:170-181. [PMID: 36414476 DOI: 10.1016/j.vaccine.2022.11.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 10/19/2022] [Accepted: 11/14/2022] [Indexed: 11/21/2022]
Abstract
Geographically precise identification and targeting of populations at risk of vaccine-preventable diseases has gained renewed attention within the global health community over the last few years. District level estimates of vaccination coverage and corresponding zero-dose prevalence constitute a potentially useful evidence base to evaluate the performance of vaccination strategies. These estimates are also valuable for identifying missed communities, hence enabling targeted interventions and better resource allocation. Here, we fit Bayesian geostatistical models to map the routine coverage of the first doses of diphtheria-tetanus-pertussis vaccine (DTP1) and measles-containing vaccine (MCV1) and corresponding zero-dose estimates in Nigeria at 1x1 km resolution and the district level using geospatial data sets. We also map MCV1 coverage before and after the 2019 measles vaccination campaign in the northern states to further explore variations in routine vaccine coverage and to evaluate the effectiveness of both routine immunization (RI) and campaigns in reaching zero-dose children. Additionally, we map the spatial distributions of reported measles cases during 2018 to 2020 and explore their relationships with MCV zero-dose prevalence to highlight the public health implications of varying performance of vaccination strategies across the country. Our analysis revealed strong similarities between the spatial distributions of DTP and MCV zero dose prevalence, with districts with the highest prevalence concentrated mostly in the northwest and the northeast, but also in other areas such as Lagos state and the Federal Capital Territory. Although the 2019 campaign reduced MCV zero-dose prevalence substantially in the north, pockets of vulnerabilities remained in areas that had among the highest prevalence prior to the campaign. Importantly, we found strong correlations between measles case counts and MCV RI zero-dose estimates, which provides a strong indication that measles incidence in the country is mostly affected by RI coverage. Our analyses reveal an urgent and highly significant need to strengthen the country's RI program as a longer-term measure for disease control, whilst ensuring effective campaigns in the short term.
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Affiliation(s)
- C Edson Utazi
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton SO17 1BJ, UK; Southampton Statistical Sciences Research Institute, University of Southampton, Southampton SO17 1BJ, UK; Department of Statistics, Nnamdi Azikiwe University, Awka PMB 5025, Nigeria.
| | - Justice M K Aheto
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton SO17 1BJ, UK; Department of Biostatistics, School of Public Health, College of Health Sciences, University of Ghana, Accra, Ghana
| | - Adelle Wigley
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton SO17 1BJ, UK
| | - Natalia Tejedor-Garavito
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton SO17 1BJ, UK
| | - Amy Bonnie
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton SO17 1BJ, UK
| | - Christopher C Nnanatu
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton SO17 1BJ, UK; Department of Statistics, Nnamdi Azikiwe University, Awka PMB 5025, Nigeria
| | - John Wagai
- World Health Organization Consultant, Abuja, Nigeria
| | - Cheryl Williams
- U.S. Centers for Disease Control and Prevention, Nigeria Country Office, Abuja, Nigeria
| | | | - Andrew J Tatem
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton SO17 1BJ, UK
| | - Felicity T Cutts
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
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Xia S, Gullickson CC, Metcalf CJE, Grenfell BT, Mina MJ. Assessing the Effects of Measles Virus Infections on Childhood Infectious Disease Mortality in Brazil. J Infect Dis 2022; 227:133-140. [PMID: 35767276 PMCID: PMC10205611 DOI: 10.1093/infdis/jiac233] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 05/29/2022] [Accepted: 06/26/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Measles virus infection induces acute immunosuppression for weeks following infection, and also impairs preexisting immunological memory, resulting in "immune amnesia" that can last for years. Both mechanisms predispose the host to severe outcomes of subsequent infections. Therefore, measles dynamics could potentially affect the epidemiology of other infectious diseases. METHODS To examine this hypothesis, we analyzed the annual mortality rates of children aged 1-9 years in Brazil from 1980 to 1995. We calculated the correlation between nonmeasles infectious disease mortality rates and measles mortality rates using linear and negative-binomial models, with 3 methods to control the confounding effects of time. We also estimated the duration of measles-induced immunomodulation. RESULTS The mortality rates of nonmeasles infectious diseases and measles virus infection were highly correlated. This positive correlation remained significant after removing the time trends. We found no evidence of long-term measles immunomodulation beyond 1 year. CONCLUSIONS These results support that measles virus infection could increase the mortality of other infectious diseases. The short lag identified for measles effects (<1 year) implies that acute immunosuppression was potentially driving this effect in Brazil. Overall, our study indicates disproportionate contributions of measles to childhood infectious disease mortality, highlighting the importance of measles vaccination.
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Affiliation(s)
- Siyang Xia
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Cricket C Gullickson
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey, USA
| | - C Jessica E Metcalf
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey, USA
- Princeton School of Public and International Affairs, Princeton University, Princeton, New Jersey, USA
| | - Bryan T Grenfell
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey, USA
- Princeton School of Public and International Affairs, Princeton University, Princeton, New Jersey, USA
| | - Michael J Mina
- Department of Pathology at Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Utazi CE, Aheto JMK, Chan HMT, Tatem AJ, Sahu SK. Conditional probability and ratio-based approaches for mapping the coverage of multi-dose vaccines. Stat Med 2022; 41:5662-5678. [PMID: 36129171 PMCID: PMC9826002 DOI: 10.1002/sim.9586] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 06/10/2022] [Accepted: 09/09/2022] [Indexed: 01/11/2023]
Abstract
Many vaccines are often administered in multiple doses to boost their effectiveness. In the case of childhood vaccines, the coverage maps of the doses and the differences between these often constitute an evidence base to guide investments in improving access to vaccination services and health system performance in low and middle-income countries. A major problem often encountered when mapping the coverage of multi-dose vaccines is the need to ensure that the coverage maps decrease monotonically with successive doses. That is, for doses i $$ i $$ and j $$ j $$ , i < j ⇒ p i ( s ) ≥ p j ( s ) $$ i<j\Rightarrow {p}_i\left(\boldsymbol{s}\right)\ge {p}_j\left(\boldsymbol{s}\right) $$ , where p i ( s ) $$ {p}_i\left(\boldsymbol{s}\right) $$ is the coverage of dose i $$ i $$ at spatial location s $$ \boldsymbol{s} $$ . Here, we explore conditional probability (CP) and ratio-based (RB) approaches for mapping p i ( s ) $$ {p}_i\left(\boldsymbol{s}\right) $$ , embedded within a binomial geostatistical modeling framework, to address this problem. The fully Bayesian model is implemented using the INLA and SPDE approaches. Using a simulation study, we find that both approaches perform comparably for out-of-sample estimation under varying point-level sample size distributions. We apply the methodology to map the coverage of the three doses of diphtheria-tetanus-pertussis vaccine using data from the 2018 Nigeria Demographic and Health Survey. The coverage maps produced using both approaches are almost indistinguishable, although the CP approach yielded more precise estimates on average in this application. We also provide estimates of zero-dose children and the dropout rates between the doses. The methodology is straightforward to implement and can be applied to other vaccines and geographical contexts.
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Affiliation(s)
- Chigozie Edson Utazi
- WorldPop, School of Geography and Environmental ScienceUniversity of SouthamptonSouthamptonUK,School of Mathematical SciencesUniversity of SouthamptonSouthamptonUK
| | - Justice Moses K. Aheto
- WorldPop, School of Geography and Environmental ScienceUniversity of SouthamptonSouthamptonUK
| | - Ho Man Theophilus Chan
- WorldPop, School of Geography and Environmental ScienceUniversity of SouthamptonSouthamptonUK,School of Mathematical SciencesUniversity of SouthamptonSouthamptonUK
| | - Andrew J. Tatem
- WorldPop, School of Geography and Environmental ScienceUniversity of SouthamptonSouthamptonUK
| | - Sujit K. Sahu
- School of Mathematical SciencesUniversity of SouthamptonSouthamptonUK
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Sievers BL, Sievers RE, Sievers EL. Incentivized self-vaccination for global measles eradication. J Virus Erad 2022; 8:100310. [PMID: 36578361 PMCID: PMC9791812 DOI: 10.1016/j.jve.2022.100310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 12/06/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
Measles-we've become inured to its cruel, insidious impact as it kills over 100,000 children yearly because of suboptimal vaccination coverage. It does not have to be this way. A familiar, safe, exceptionally effective measles vaccine saves lives and permanent, global measles eradication is within reach. But now we need to be clever and courageously explore new strategies to save lives. Firstly, let us enable people to vaccinate themselves, not with a needle and syringe, but with a quick inhaled puff of dry powder vaccine. Secondly, let us provide micro-payments using digital currency to incentivize those who vaccinate themselves. Thirdly, let us leverage learnings from how our social networks guide our behaviors to further encourage self-vaccination. Fourthly, let us inspire friendly regional competition among communities vying for the highest proportion of citizens who show measles neutralizing antibodies in spot saliva samples. With global cooperation and relentless determination, we eradicated smallpox. Next up? Measles.
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Affiliation(s)
| | - Robert E. Sievers
- Department of Chemistry and Biochemistry, University of Colorado Boulder, Boulder, CO, 80309, USA
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Koye DN, Melaku YA, Gelaw YA, Zeleke BM, Adane AA, Tegegn HG, Gebreyohannes EA, Erku DA, Tesfay FH, Gesesew HA, Mekonnen A, Dadi AF, Alene KA. Mapping national, regional and local prevalence of hypertension and diabetes in Ethiopia using geospatial analysis. BMJ Open 2022; 12:e065318. [PMID: 36600383 PMCID: PMC9743363 DOI: 10.1136/bmjopen-2022-065318] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES This study aimed to map the national, regional and local prevalence of hypertension and diabetes in Ethiopia. DESIGN AND SETTING Nationwide cross-sectional survey in Ethiopia combined with georeferenced ecological level data from publicly available sources. PARTICIPANTS 9801 participants aged between 15 and 69 years. PRIMARY OUTCOME MEASURES Prevalence of hypertension and diabetes were collected using the WHO's STEPS survey approach. Bayesian model-based geostatistical techniques were used to estimate hypertension and diabetes prevalence at national, regional and pixel levels (1×1 km2) with corresponding 95% credible intervals (95% CrIs). RESULTS The national prevalence was 19.2% (95% CI: 18.4 to 20.0) for hypertension and 2.8% (95% CI: 2.4 to 3.1) for diabetes. Substantial variation was observed in the prevalence of these diseases at subnational levels, with the highest prevalence of hypertension observed in Addis Ababa (30.6%) and diabetes in Somali region (8.7%). Spatial overlap of high hypertension and diabetes prevalence was observed in some regions such as the Southern Nations, Nationalities and People's region and Addis Ababa. Population density (number of people/km2) was positively associated with the prevalence of hypertension (β: 0.015; 95% CrI: 0.003-0.027) and diabetes (β: 0.046; 95% CrI: 0.020-0.069); whereas altitude in kilometres was negatively associated with the prevalence of diabetes (β: -0.374; 95% CrI: -0.711 to -0.044). CONCLUSIONS Spatial clustering of hypertension and diabetes was observed at subnational and local levels in Ethiopia, which was significantly associated with population density and altitude. The variation at the subnational level illustrates the need to include environmental drivers in future NCDs burden estimation. Thus, targeted and integrated interventions in high-risk areas might reduce the burden of hypertension and diabetes in Ethiopia.
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Affiliation(s)
- Digsu Negese Koye
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
- Methods and Implementation Support for Clinical and Health research Hub (MISCH), Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Yohannes Adama Melaku
- College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia
| | - Yalemzewod Assefa Gelaw
- Telethon Kids Institute, Nedlands, Western Australia, Australia
- School of Population Health, Curtin University, Perth, Western Australia, Australia
| | - Berihun Megabiaw Zeleke
- Planetary Health Division, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Akilew Awoke Adane
- Telethon Kids Institute, Nedlands, Western Australia, Australia
- Ngangk Yira Institute for Change, Murdoch University, Murdoch, Western Australia, Australia
| | - Henok Getachew Tegegn
- School of Rural Medicine, University of New England, Armidale, New South Wales, Australia
| | - Eyob Alemayehu Gebreyohannes
- Telethon Kids Institute, Nedlands, Western Australia, Australia
- Division of Pharmacy, School of Allied Health, The University of Western Australia, Perth, Western Australia, Australia
| | - Daniel Asfaw Erku
- Centre for Applied Health Economics, Griffith University, Nathan, Queensland, Australia
| | - Fisaha Haile Tesfay
- School of Public Health, Mekelle University, Mekelle, Ethiopia
- Institute of Health Transformation, Deakin University, Melbourne, Victoria, Australia
| | - Hailay Abrha Gesesew
- School of Public Health, Mekelle University, Mekelle, Ethiopia
- Research Centre for Public Health, Equity and Human Flourishing, Torrens University Australia, Adelaide, South Australia, Australia
| | - Alemayehu Mekonnen
- Centre for Quality and Patient Safety Research, School of Nursing and Midwifery, Institute for Health Transformation, Deakin University, Burwood, Victoria, Australia
| | - Abel Fekadu Dadi
- College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
- Menzies Health Research Institute, Charles Darwin University, Darwin, Northern Territory, Australia
| | - Kefyalew Addis Alene
- Telethon Kids Institute, Nedlands, Western Australia, Australia
- School of Population Health, Curtin University, Perth, Western Australia, Australia
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Haakenstad A, Yearwood JA, Fullman N, Bintz C, Bienhoff K, Weaver MR, Nandakumar V, LeGrand KE, Knight M, Abbafati C, Abbasi-Kangevari M, Abdoli A, Abeldaño Zuñiga RA, Adedeji IA, Adekanmbi V, Adetokunboh OO, Afzal MS, Afzal S, Agudelo-Botero M, Ahinkorah BO, Ahmad S, Ahmadi A, Ahmadi S, Ahmed A, Ahmed Rashid T, Aji B, Akande-Sholabi W, Alam K, Al Hamad H, Alhassan RK, Ali L, Alipour V, Aljunid SM, Ameyaw EK, Amin TT, Amu H, Amugsi DA, Ancuceanu R, Andrade PP, Anjum A, Arabloo J, Arab-Zozani M, Ariffin H, Arulappan J, Aryan Z, Ashraf T, Atnafu DD, Atreya A, Ausloos M, Avila-Burgos L, Ayano G, Ayanore MA, Azari S, Badiye AD, Baig AA, Bairwa M, Bakkannavar SM, Baliga S, Banik PC, Bärnighausen TW, Barra F, Barrow A, Basu S, Bayati M, Belete R, Bell AW, Bhagat DS, Bhagavathula AS, Bhardwaj P, Bhardwaj N, Bhaskar S, Bhattacharyya K, Bhurtyal A, Bhutta ZA, Bibi S, Bijani A, Bikbov B, Biondi A, Bolarinwa OA, Bonny A, Brenner H, Buonsenso D, Burkart K, Busse R, Butt ZA, Butt NS, Caetano dos Santos FL, Cahuana-Hurtado L, Cámera LA, Cárdenas R, Carneiro VLA, Catalá-López F, Chandan JS, Charan J, Chavan PP, Chen S, Chen S, Choudhari SG, Chowdhury EK, Chowdhury MAK, Cirillo M, Corso B, Dadras O, Dahlawi SMA, Dai X, Dandona L, Dandona R, Dangel WJ, Dávila-Cervantes CA, Davletov K, Deuba K, Dhimal M, Dhimal ML, Djalalinia S, Do HP, Doshmangir L, Duncan BB, Effiong A, Ehsani-Chimeh E, Elgendy IY, Elhadi M, El Sayed I, El Tantawi M, Erku DA, Eskandarieh S, Fares J, Farzadfar F, Ferrero S, Ferro Desideri L, Fischer F, Foigt NA, Foroutan M, Fukumoto T, Gaal PA, Gaihre S, Gardner WM, Garg T, Getachew Obsa A, Ghafourifard M, Ghashghaee A, Ghith N, Gilani SA, Gill PS, Goharinezhad S, Golechha M, Guadamuz JS, Guo Y, Gupta RD, Gupta R, Gupta VK, Gupta VB, Hamiduzzaman M, Hanif A, Haro JM, Hasaballah AI, Hasan MM, Hasan MT, Hashi A, Hay SI, Hayat K, Heidari M, Heidari G, Henry NJ, Herteliu C, Holla R, Hossain S, Hossain SJ, Hossain MBH, Hosseinzadeh M, Hostiuc S, Hoveidamanesh S, Hsieh VCR, Hu G, Huang J, Huda MM, Ifeagwu SC, Ikuta KS, Ilesanmi OS, Irvani SSN, Islam RM, Islam SMS, Ismail NE, Iso H, Isola G, Itumalla R, Iwagami M, Jahani MA, Jahanmehr N, Jain R, Jakovljevic M, Janodia MD, Jayapal SK, Jayaram S, Jha RP, Jonas JB, Joo T, Joseph N, Jürisson M, Kabir A, Kalankesh LR, Kalhor R, Kamath AM, Kamenov K, Kandel H, Kantar RS, Kapoor N, Karanikolos M, Katikireddi SV, Kavetskyy T, Kawakami N, Kayode GA, Keikavoosi-Arani L, Keykhaei M, Khader YS, Khajuria H, Khalilov R, Khammarnia M, Khan MN, Khan MAB, Khan M, Khezeli M, Kim MS, Kim YJ, Kisa S, Kisa A, Klymchuk V, Koly KN, Korzh O, Kosen S, Koul PA, Kuate Defo B, Kumar GA, Kusuma D, Kyu HH, Larsson AO, Lasrado S, Lee WC, Lee YH, Lee CB, Li S, Lucchetti G, Mahajan PB, Majeed A, Makki A, Malekzadeh R, Malik AA, Malta DC, Mansournia MA, Mantovani LG, Martinez-Valle A, Martins-Melo FR, Masoumi SZ, Mathur MR, Maude RJ, Maulik PK, McKee M, Mendoza W, Menezes RG, Mensah GA, Meretoja A, Meretoja TJ, Mestrovic T, Michalek IM, Mirrakhimov EM, Misganaw A, Misra S, Moazen B, Mohammadi M, Mohammed S, Moitra M, Mokdad AH, Molokhia M, Monasta L, Moni MA, Moradi G, Moreira RS, Mosser JF, Mostafavi E, Mouodi S, Nagarajan AJ, Nagata C, Naghavi M, Nangia V, Narasimha Swamy S, Narayana AI, Nascimento BR, Nassereldine H, Nayak BP, Nazari J, Negoi I, Nepal S, Neupane Kandel S, Ngunjiri JW, Nguyen HLT, Nguyen CT, Ningrum DNA, Noubiap JJ, Oancea B, Oghenetega OB, Oh IH, Olagunju AT, Olakunde BO, Omar Bali A, Omer E, Onwujekwe OE, Otoiu A, Padubidri JR, Palladino R, Pana A, Panda-Jonas S, Pandi-Perumal SR, Pardhan S, Pasupula DK, Pathak PK, Patton GC, Pawar S, Pereira J, Pilania M, Piroozi B, Podder V, Pokhrel KN, Postma MJ, Prada SI, Quazi Syed Z, Rabiee N, Radhakrishnan RA, Rahman MM, Rahman M, Rahman M, Rahman MHU, Rahmani AM, Ranabhat CL, Rao CR, Rao SJ, Rasella D, Rawaf S, Rawaf DL, Rawal L, Renzaho AM, Reshmi B, Resnikoff S, Rezapour A, Riahi SM, Ripon RK, Sacco S, Sadeghi M, Saeed U, Sahebkar A, Sahiledengle B, Sahoo H, Sahu M, Salama JS, Salamati P, Samy AM, Sanabria J, Santric-Milicevic MM, Sathian B, Sawhney M, Schmidt MI, Seidu AA, Sepanlou SG, Seylani A, Shaikh MA, Sheikh A, Shetty A, Shigematsu M, Shiri R, Shivakumar KM, Shokri A, Singh JA, Sinha DN, Skryabin VY, Skryabina AA, Sofi-Mahmudi A, Sousa RARC, Stephens JH, Sun J, Szócska M, Tabarés-Seisdedos R, Tadbiri H, Tamiru AT, Thankappan KR, Topor-Madry R, Tovani-Palone MR, Tran MTN, Tran BX, Tripathi N, Tripathy JP, Troeger CE, Uezono DR, Ullah S, Ullah A, Unnikrishnan B, Vacante M, Valadan Tahbaz S, Valdez PR, Vasic M, Veroux M, Vervoort D, Violante FS, Vladimirov SK, Vlassov V, Vo B, Waheed Y, Wamai RG, Wang YP, Wang Y, Ward P, Wiangkham T, Yadav L, Yahyazadeh Jabbari SH, Yamagishi K, Yaya S, Yazdi-Feyzabadi V, Yi S, Yiğit V, Yonemoto N, Younis MZ, Yu C, Yunusa I, Zaman SB, Zastrozhin MS, Zhang ZJ, Zhong C, Zuniga YMH, Lim SS, Murray CJL, Lozano R. Assessing performance of the Healthcare Access and Quality Index, overall and by select age groups, for 204 countries and territories, 1990-2019: a systematic analysis from the Global Burden of Disease Study 2019. Lancet Glob Health 2022; 10:e1715-e1743. [PMID: 36209761 PMCID: PMC9666426 DOI: 10.1016/s2214-109x(22)00429-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 05/13/2022] [Accepted: 09/23/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Health-care needs change throughout the life course. It is thus crucial to assess whether health systems provide access to quality health care for all ages. Drawing from the Global Burden of Diseases, Injuries, and Risk Factors Study 2019 (GBD 2019), we measured the Healthcare Access and Quality (HAQ) Index overall and for select age groups in 204 locations from 1990 to 2019. METHODS We distinguished the overall HAQ Index (ages 0-74 years) from scores for select age groups: the young (ages 0-14 years), working (ages 15-64 years), and post-working (ages 65-74 years) groups. For GBD 2019, HAQ Index construction methods were updated to use the arithmetic mean of scaled mortality-to-incidence ratios (MIRs) and risk-standardised death rates (RSDRs) for 32 causes of death that should not occur in the presence of timely, quality health care. Across locations and years, MIRs and RSDRs were scaled from 0 (worst) to 100 (best) separately, putting the HAQ Index on a different relative scale for each age group. We estimated absolute convergence for each group on the basis of whether the HAQ Index grew faster in absolute terms between 1990 and 2019 in countries with lower 1990 HAQ Index scores than countries with higher 1990 HAQ Index scores and by Socio-demographic Index (SDI) quintile. SDI is a summary metric of overall development. FINDINGS Between 1990 and 2019, the HAQ Index increased overall (by 19·6 points, 95% uncertainty interval 17·9-21·3), as well as among the young (22·5, 19·9-24·7), working (17·2, 15·2-19·1), and post-working (15·1, 13·2-17·0) age groups. Large differences in HAQ Index scores were present across SDI levels in 2019, with the overall index ranging from 30·7 (28·6-33·0) on average in low-SDI countries to 83·4 (82·4-84·3) on average in high-SDI countries. Similarly large ranges between low-SDI and high-SDI countries, respectively, were estimated in the HAQ Index for the young (40·4-89·0), working (33·8-82·8), and post-working (30·4-79·1) groups. Absolute convergence in HAQ Index was estimated in the young group only. In contrast, divergence was estimated among the working and post-working groups, driven by slow progress in low-SDI countries. INTERPRETATION Although major gaps remain across levels of social and economic development, convergence in the young group is an encouraging sign of reduced disparities in health-care access and quality. However, divergence in the working and post-working groups indicates that health-care access and quality is lagging at lower levels of social and economic development. To meet the needs of ageing populations, health systems need to improve health-care access and quality for working-age adults and older populations while continuing to realise gains among the young. FUNDING Bill & Melinda Gates Foundation.
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Chilot D, Belay DG, Shitu K, Gela YY, Getnet M, Mulat B, Muluneh AG, Merid MW, Bitew DA, Alem AZ. Measles second dose vaccine utilization and associated factors among children aged 24–35 months in Sub-Saharan Africa, a multi-level analysis from recent DHS surveys. BMC Public Health 2022; 22:2070. [PMID: 36371164 PMCID: PMC9655865 DOI: 10.1186/s12889-022-14478-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 10/27/2022] [Indexed: 11/13/2022] Open
Abstract
Background Although a safe and effective vaccine is available, measles remains an important cause of mortality and morbidity among young children in Sub-Saharan Africa (SSA). The WHO and UNICEF recommended measles-containing vaccine dose 2 (MCV2) in addition to measles-containing vaccine dose 1 (MCV1) through routine services strategies. Many factors could contribute to the routine dose of MCV2 coverage remaining far below targets in many countries of this region. This study aimed to assess the prevalence of MCV2 utilization among children aged 24–35 months and analyze factors associated with it by using recent nationally representative surveys of SSA countries. Methods Secondary data analysis was done based on recent Demographic and Health Surveys (DHS) data from eight Sub-Saharan African countries. In this region, only eight countries have a record of routine doses of measles-containing vaccine dose 2 in their DHS dataset. The multilevel binary logistic regression model was fitted to identify significantly associated factors. Variables were extracted from each of the eight country’s KR files. Adjusted Odds Ratios (AOR) with a 95% Confidence Interval (CI) and p-value ≤ 0.05 in the multivariable model were used to declare significant factors associated with measles-containing vaccine dose 2 utilization. Result The pooled prevalence of MCV2 utilization in SSA was 44.77% (95% CI: 27.10–62.43%). In the multilevel analysis, mothers aged 25–34 years [AOR = 1.15,95% CI (1.05–1.26), mothers aged 35 years and above [AOR = 1.26, 95% CI (1.14–1.41)], maternal secondary education and above [AOR = 1.27, 95% CI (1.13–1.43)], not big problem to access health facilities [AOR = 1.21, 95% CI (1.12–1.31)], four and above ANC visit [AOR = 2.75, 95% CI (2.35–3.24)], PNC visit [AOR = 1.13, 95% CI (1.04–1.23)], health facility delivery [AOR = 2.24, 95% CI (2.04–2.46)], were positively associated with MCV2 utilization. In contrast, multiple twin [AOR = 0.70, 95% CI (0.53–0.95)], rural residence [AOR = 0.69, 95% CI (0.57–0.82)] and high community poverty [AOR = 0.66, 95% CI (0.54–0.80)] were found to be negatively associated with MCV2 utilization. Conclusions and recommendations Measles-containing vaccine doses 2 utilization in Sub-Saharan Africa was relatively low. Individual-level factors and community-level factors were significantly associated with low measles-containing vaccine dose 2 utilization. The MCV2 utilization could be improved through public health intervention by targeting rural residents, children of uneducated mothers, economically poor women, and other significant factors this study revealed.
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Exploring the subnational inequality and heterogeneity of the impact of routine measles immunisation in Africa. Vaccine 2022; 40:6806-6817. [PMID: 36244882 DOI: 10.1016/j.vaccine.2022.09.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 09/15/2022] [Accepted: 09/16/2022] [Indexed: 11/07/2022]
Abstract
Despite vaccination being one of the most effective public health interventions, there are persisting inequalities and inequities in immunisation. Understanding the differences in subnational vaccine impact can help improve delivery mechanisms and policy. We analyse subnational vaccination coverage of measles first-dose (MCV1) and estimate patterns of inequalities in impact, represented as deaths averted, across 45 countries in Africa. We also evaluate how much this impact would improve under more equitable vaccination coverage scenarios. Using coverage data for MCV1 from 2000-2019, we estimate the number of deaths averted at the first administrative level. We use the ratio of deaths averted per vaccination from two mathematical models to extrapolate the impact at a subnational level. Next, we calculate inequality for each country, measuring the spread of deaths averted across its regions, accounting for differences in population. Finally, using three more equitable vaccination coverage scenarios, we evaluate how much impact of MCV1 immunisation could improve by (1) assuming all regions in a country have at least national coverage, (2) assuming all regions have the observed maximum coverage; and (3) assuming all regions have at least 80% coverage. Our results show that progress in coverage and reducing inequality has slowed in the last decade in many African countries. Under the three scenarios, a significant number of additional deaths in children could be prevented each year; for example, under the observed maximum coverage scenario, global MCV1 coverage would improve from 76% to 90%, resulting in a further 363(95%CrI:299-482) deaths averted per 100,000 live births. This paper illustrates that estimates of the impact of MCV1 immunisation at a national level can mask subnational heterogeneity. We further show that a considerable number of deaths could be prevented by maximising equitable access in countries with high inequality when increasing the global coverage of MCV1 vaccination.
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Wigley A, Lorin J, Hogan D, Utazi CE, Hagedorn B, Dansereau E, Tatem AJ, Tejedor-Garavito N. Estimates of the number and distribution of zero-dose and under-immunised children across remote-rural, urban, and conflict-affected settings in low and middle-income countries. PLOS GLOBAL PUBLIC HEALTH 2022; 2:e0001126. [PMID: 36962682 PMCID: PMC10021885 DOI: 10.1371/journal.pgph.0001126] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 10/05/2022] [Indexed: 02/11/2023]
Abstract
While there has been great success in increasing the coverage of new childhood vaccines globally, expanding routine immunization to reliably reach all children and communities has proven more challenging in many low- and middle-income countries. Achieving this requires vaccination strategies and interventions that identify and target those unvaccinated, guided by the most current and detailed data regarding their size and spatial distribution. Through the integration and harmonisation of a range of geospatial data sets, including population, vaccination coverage, travel-time, settlement type, and conflict locations. We estimated the numbers of children un- or under-vaccinated for measles and diphtheria-tetanus-pertussis, within remote-rural, urban, and conflict-affected locations. We explored how these numbers vary both nationally and sub-nationally, and assessed what proportions of children these categories captured, for 99 lower- and middle-income countries, for which data was available. We found that substantial heterogeneities exist both between and within countries. Of the total 14,030,486 children unvaccinated for DTP1, over 11% (1,656,757) of un- or under-vaccinated children were in remote-rural areas, more than 28% (2,849,671 and 1,129,915) in urban and peri-urban areas, and up to 60% in other settings, with nearly 40% found to be within 1-hour of the nearest town or city (though outside of urban/peri-urban areas). Of the total number of those unvaccinated, we estimated between 6% and 15% (826,976 to 2,068,785) to be in conflict-affected locations, based on either broad or narrow definitions of conflict. Our estimates provide insights into the inequalities in vaccination coverage, with the distributions of those unvaccinated varying significantly by country, region, and district. We demonstrate the need for further inquiry and characterisation of those unvaccinated, the thresholds used to define these, and for more country-specific and targeted approaches to defining such populations in the strategies and interventions used to reach them.
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Affiliation(s)
- Adelle Wigley
- WorldPop, Geography and Environmental Science, University of Southampton, Highfield Campus, Southampton, United Kingdom
| | - Josh Lorin
- Gavi, The Vaccine Alliance, Geneva, Switzerland
| | - Dan Hogan
- Gavi, The Vaccine Alliance, Geneva, Switzerland
| | - C Edson Utazi
- WorldPop, Geography and Environmental Science, University of Southampton, Highfield Campus, Southampton, United Kingdom
| | - Brittany Hagedorn
- Institute for Disease Modelling, Bill & Melinda Gates Foundation, Seattle, Washington, WA, United States of America
| | - Emily Dansereau
- Institute for Disease Modelling, Bill & Melinda Gates Foundation, Seattle, Washington, WA, United States of America
| | - Andrew J Tatem
- WorldPop, Geography and Environmental Science, University of Southampton, Highfield Campus, Southampton, United Kingdom
| | - Natalia Tejedor-Garavito
- WorldPop, Geography and Environmental Science, University of Southampton, Highfield Campus, Southampton, United Kingdom
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Turaiche M, Grigoras ML, Bratosin F, Bogdan I, Bota AV, Cerbu B, Gurban CV, Wulandari PH, Gurumurthy S, Hemaswini K, Citu C, Marincu I. Disease Progression, Clinical Features, and Risk Factors for Pneumonia in Unvaccinated Children and Adolescents with Measles: A Re-Emerging Disease in Romania. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13165. [PMID: 36293745 PMCID: PMC9603068 DOI: 10.3390/ijerph192013165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/09/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Measles causes in vaccinated children, with some exceptions, a mild disease, while the unvaccinated can suffer complications that result in serious consequences and even death. Although the introduction of the measles vaccine has reduced the number of cases and the viral spread, the current downward vaccination trend has resulted in the resurgence of the disease. Currently, Romania has a measles vaccination coverage below the 95% safety threshold. Thus, an outbreak started in 2016 and still ongoing in Romania, many cases being identified in the Western region in the pediatric population. Our objective was to conduct a thorough examination of clinical characteristics, evolution, and risk factors in vaccinated and unvaccinated children in this region. To reach our objectives we used a retrospective cohort analysis. The authors reviewed clinical and laboratory data from patients hospitalized at "Victor Babes" Hospital for Infectious Diseases and Pulmonology in Timisoara. We found a total of 136 qualifying cases of measles among the children admitted to this facility. The two comparison groups consisted of 104 children under 10 years and 32 patients between 10 and 18 years. An important characteristic of both study groups was the high prevalence of patients from the Roma ethnicity, which, although represents a minority in Romania, the prevalence was over 40% in the current study. The infection source was in 40.4% of children under 10 years inside the family, while 71.9% of infections in the group of adolescents were isolated (p-value = 0.047). The multivariate risk factor analysis identified as independent risk factors for the development of pneumonia the older age of patients (OR = 1.62), poor nutritional status (OR = 1.25), Roma ethnicity (OR = 2.44), presence of anemia (OR = 1.58), and procalcitonin (OR = 3.09). It is essential to handle these risk factors in a patient with measles, especially in conjunction with an unknown vaccination status. To achieve a vaccination rate greater than 95 percent for Romanian children, measles vaccination awareness must be promoted, moreover in the Roma population. More comprehensive preventative methods must be developed promptly with the objective of eradicating measles in Romania via a vigorous vaccination campaign.
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Affiliation(s)
- Mirela Turaiche
- Methodological and Infectious Diseases Research Center, Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Mirela Loredana Grigoras
- Methodological and Infectious Diseases Research Center, Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Department of Anatomy and Embryology, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Felix Bratosin
- Methodological and Infectious Diseases Research Center, Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Iulia Bogdan
- Methodological and Infectious Diseases Research Center, Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Adrian Vasile Bota
- Methodological and Infectious Diseases Research Center, Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Bianca Cerbu
- Methodological and Infectious Diseases Research Center, Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Camelia Vidita Gurban
- Methodological and Infectious Diseases Research Center, Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Department of Biochemistry, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | | | | | - Kakarla Hemaswini
- Malla Reddy Institute of Medical Sciences, Suraram Main Road 138, Hyderabad 500055, India
| | - Cosmin Citu
- Methodological and Infectious Diseases Research Center, Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Department of Obstetrics and Gynecology, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Iosif Marincu
- Methodological and Infectious Diseases Research Center, Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
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NeJhaddadgar N, Pirani N, Heydarian N, Ebadi Fard Azar AA, Yazdi F, Toghroli R, Chaboksavar F, Shalchi Oghli S, Kianipour N, Zokaei A, Foroughinia A. Knowledge, attitude, and practice toward the COVID-19 infection among adults Iran: A cross-sectional study. J Public Health Res 2022; 11:22799036221129370. [PMID: 36310828 PMCID: PMC9597046 DOI: 10.1177/22799036221129370] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 09/12/2022] [Indexed: 11/06/2022] Open
Abstract
Background Coronavirus illness (COVID-19) has spread globally and is affecting everyone severely. The evaluation of educational needs (knowledge, attitudes, and practices) is important in controlling COVID-19 situations. The goal of this study is to find out what adults in Ardabil City know, how they feel, and what they do about the COVID-19 infection. Methods In November 2021, a cross-sectional descriptive-correlational survey of 384 people was conducted using stratified-cluster sampling in Ardabil. The researchers created a self-reported questionnaire with 23 items as the data collection technique. The quantitative data were evaluated using descriptive statistics, the chi-square test, the correlation coefficient, and regression analysis. Results The correct answer rate for this research found that 73.17% of participants (n = 281) had appropriate knowledge, 61.19% (n = 235) had favorable attitudes, and 69.53% (n = 267) had enough practice behavior. However, knowledge was related to gender, employment, and location of residence. Age, marital status, education level, and location of residence were all connected with attitude. Age, gender, and marital status were all related to the behavior. The findings of linear regression analysis revealed that knowledge and attitude influence behavior. Conclusion The study findings revealed a high degree of understanding of COVID-19, a positive attitude, and a strong commitment to good practices. Knowledge, attitudes, and behaviors were influenced to varying degrees by age, marital status, education level, employment, and location of residence. Furthermore, knowledge and attitudes influenced behaviors.
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Affiliation(s)
- Nazila NeJhaddadgar
- Health Promotion and Education,
Department of Health Promotion and Education, Ardabil University of Medical
Sciences, Ardabil, Iran
| | - Narges Pirani
- Cancer Research Center, Cancer
Institute of Iran, Tehran university of medical sciences, Tehran, Iran
| | | | | | - Fateme Yazdi
- School of Nursing and Midwifery, Dezful
University of Medical Sciences, Dezful, Iran
| | - Razie Toghroli
- Social Determinants in Health Promotion
Research Center, Hormozgan Health Institute, Hormozgan University of Medical
Sciences, Bandar Abbas, Iran
| | - Fakhreddin Chaboksavar
- Nursing Care Research Center, Health
Research Institute, Babol University of Medical Sciences, Babol, I.R Iran
| | - Somayyeh Shalchi Oghli
- Department of Health Education and
Promotion, School of Public Health, Tehran University of Medical Sciences, Tehran,
Iran
| | - Neda Kianipour
- Cardiovascular Research Center, Health
Institute, Imam-Ali hospital, Kermanshah University of Medical Sciences, Kermanshah,
Iran
| | - Abdolhamid Zokaei
- School of Medicine, Kermanshah
University of Medical Sciences, Kermanshah, Iran
| | - Azadeh Foroughinia
- School of Medicine, Kermanshah
University of Medical Sciences, Kermanshah, Iran
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Leveraging a national biorepository in Zambia to assess measles and rubella immunity gaps across age and space. Sci Rep 2022; 12:10217. [PMID: 35715547 PMCID: PMC9204687 DOI: 10.1038/s41598-022-14493-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 06/08/2022] [Indexed: 11/08/2022] Open
Abstract
High-quality, representative serological surveys allow direct estimates of immunity profiles to inform vaccination strategies but can be costly and logistically challenging. Leveraging residual serum samples is one way to increase their feasibility. We subsampled 9854 residual sera from a 2016 national HIV survey in Zambia and tested these specimens for anti-measles and anti-rubella virus IgG antibodies using indirect enzyme immunoassays. We demonstrate innovative methods for sampling residual sera and analyzing seroprevalence data, as well as the value of seroprevalence estimates to understand and control measles and rubella. National measles and rubella seroprevalence for individuals younger than 50 years was 82.8% (95% CI 81.6, 83.9%) and 74.9% (95% CI 73.7, 76.0%), respectively. Despite a successful childhood vaccination program, measles immunity gaps persisted across age groups and districts, indicating the need for additional activities to complement routine immunization. Prior to vaccine introduction, we estimated a rubella burden of 96 congenital rubella syndrome cases per 100,000 live births. Residual samples from large-scale surveys can reduce the cost and challenges of conducting serosurveys, and multiple pathogens can be tested. Procedures to access quality specimens, ensure ethical approvals, and link sociodemographic data can improve the timeliness and value of results.
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41
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Ali HA, Hartner AM, Echeverria-Londono S, Roth J, Li X, Abbas K, Portnoy A, Vynnycky E, Woodruff K, Ferguson NM, Toor J, Gaythorpe KA. Vaccine equity in low and middle income countries: a systematic review and meta-analysis. Int J Equity Health 2022; 21:82. [PMID: 35701823 PMCID: PMC9194352 DOI: 10.1186/s12939-022-01678-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/17/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Evidence to date has shown that inequality in health, and vaccination coverage in particular, can have ramifications to wider society. However, whilst individual studies have sought to characterise these heterogeneities in immunisation coverage at national level, few have taken a broad and quantitative view of the contributing factors to heterogeneity in immunisation coverage and impact, i.e. the number of cases, deaths, and disability-adjusted life years averted. This systematic review aims to highlight these geographic, demographic, and sociodemographic characteristics through a qualitative and quantitative approach, vital to prioritise and optimise vaccination policies. METHODS A systematic review of two databases (PubMed and Web of Science) was undertaken using search terms and keywords to identify studies examining factors on immunisation inequality and heterogeneity in vaccination coverage. Inclusion criteria were applied independently by two researchers. Studies including data on key characteristics of interest were further analysed through a meta-analysis to produce a pooled estimate of the risk ratio using a random effects model for that characteristic. RESULTS One hundred and eight studies were included in this review. We found that inequalities in wealth, education, and geographic access can affect vaccine impact and vaccination dropout. We estimated those living in rural areas were not significantly different in terms of full vaccination status compared to urban areas but noted considerable heterogeneity between countries. We found that females were 3% (95%CI[1%, 5%]) less likely to be fully vaccinated than males. Additionally, we estimated that children whose mothers had no formal education were 28% (95%CI[18%,47%]) less likely to be fully vaccinated than those whose mother had primary level, or above, education. Finally, we found that individuals in the poorest wealth quintile were 27% (95%CI [16%,37%]) less likely to be fully vaccinated than those in the richest. CONCLUSIONS We found a nuanced picture of inequality in vaccination coverage and access with wealth disparity dominating, and likely driving, other disparities. This review highlights the complex landscape of inequity and further need to design vaccination strategies targeting missed subgroups to improve and recover vaccination coverage following the COVID-19 pandemic. TRIAL REGISTRATION Prospero, CRD42021261927.
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Affiliation(s)
| | | | | | - Jeremy Roth
- Imperial College London, Praed Street, London, UK
| | - Xiang Li
- Imperial College London, Praed Street, London, UK
| | - Kaja Abbas
- London School of Hygiene and Tropical Medicine, Keppel Street, London, UK
| | - Allison Portnoy
- Center for Health Decision Science, Harvard T H Chan School of Public Health, Cambridge, USA
| | | | - Kim Woodruff
- Imperial College London, Praed Street, London, UK
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Utazi CE, Pannell O, Aheto JMK, Wigley A, Tejedor-Garavito N, Wunderlich J, Hagedorn B, Hogan D, Tatem AJ. Assessing the characteristics of un- and under-vaccinated children in low- and middle-income countries: A multi-level cross-sectional study. PLOS GLOBAL PUBLIC HEALTH 2022; 2:e0000244. [PMID: 36962232 PMCID: PMC10021434 DOI: 10.1371/journal.pgph.0000244] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 02/03/2022] [Indexed: 11/18/2022]
Abstract
Achieving equity in vaccination coverage has been a critical priority within the global health community. Despite increased efforts recently, certain populations still have a high proportion of un- and under-vaccinated children in many low- and middle-income countries (LMICs). These populations are often assumed to reside in remote-rural areas, urban slums and conflict-affected areas. Here, we investigate the effects of these key community-level factors, alongside a wide range of other individual, household and community level factors, on vaccination coverage. Using geospatial datasets, including cross-sectional data from the most recent Demographic and Health Surveys conducted between 2008 and 2018 in nine LMICs, we fitted Bayesian multi-level binary logistic regression models to determine key community-level and other factors significantly associated with non- and under-vaccination. We analyzed the odds of receipt of the first doses of diphtheria-tetanus-pertussis (DTP1) vaccine and measles-containing vaccine (MCV1), and receipt of all three recommended DTP doses (DTP3) independently, in children aged 12-23 months. In bivariate analyses, we found that remoteness increased the odds of non- and under-vaccination in nearly all the study countries. We also found evidence that living in conflict and urban slum areas reduced the odds of vaccination, but not in most cases as expected. However, the odds of vaccination were more likely to be lower in urban slums than formal urban areas. Our multivariate analyses revealed that the key community variables-remoteness, conflict and urban slum-were sometimes associated with non- and under-vaccination, but they were not frequently predictors of these outcomes after controlling for other factors. Individual and household factors such as maternal utilization of health services, maternal education and ethnicity, were more common predictors of vaccination. Reaching the Immunisation Agenda 2030 target of reducing the number of zero-dose children by 50% by 2030 will require country tailored analyses and strategies to identify and reach missed communities with reliable immunisation services.
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Affiliation(s)
- C. Edson Utazi
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton, United Kingdom
| | - Oliver Pannell
- Flowminder Foundation and WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton, United Kingdom
| | - Justice M. K. Aheto
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton, United Kingdom
| | - Adelle Wigley
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton, United Kingdom
| | - Natalia Tejedor-Garavito
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton, United Kingdom
| | | | - Brittany Hagedorn
- Institute for Disease Modeling, Bill & Melinda Gates Foundation, Seattle, Washington, WA, United States of America
| | - Dan Hogan
- Gavi, The Vaccine Alliance, Geneva, Switzerland
| | - Andrew J. Tatem
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton, United Kingdom
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Measles-Rubella Positivity Rate and Associated Factors in Pre-Mass and Post-Mass Vaccination Periods: Analysis of Uganda Routine Surveillance Laboratory Data. ADVANCES IN PUBLIC HEALTH 2022. [DOI: 10.1155/2022/5080631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Toward 2019, Uganda experienced an extensive outbreak of measles and rubella. The Uganda National Expanded Programme on Immunization implemented a mass measles-rubella vaccination campaign aimed at halting the ongoing transmission. This study determined the changes in the disease burden thereafter. We conducted a retrospective cross-sectional study on measles-rubella positivity and its associated factors in Uganda using 1697 case-based surveillance data for 2019 and 2020 stratified into two dispensations: prevaccination and postvaccination campaigns. Statistical tests employed in STATA 15 included chi-square, Fisher’s exact, and binomial tests. Measles positivity rates in the period before and after the mass immunization campaign were 41.88% (95% CI: 39.30–44.51) and 37.96% (95% CI: 32.81–43.40), respectively. For rubella, the positivity rate in the precampaign season was 21.73% (95% CI: 19.61–23.99) and in the postvaccination season was 6.65% (95% CI: 4.36–10.00). Binomial tests indicated that postcampaign positivity rates were significantly lower than the precampaign rate for measles (
) and rubella (
). Generally, age (χ2 = 58.94,
/χ2 = 51.91,
) and vaccination status (χ2 = 60.48,
/χ2 = 16.90,
) were associated with the measles positivity rate in both pre/postcampaign periods. Rubella positivity rate was associated with vaccination status (χ2 = 32.97,
/
) in both periods and age in the precampaign season (
). The measles-rubella mass campaign lessened rubella burden remarkably, but barely adequate change was observed in the extent of spread of measles. Children aged less than 9 months are at higher chances of testing positive amidst low vaccination levels among the eligible. The immunization programme must attain and maintain routine immunization coverage at 95% or more and roll out a second-dose measles-rubella vaccination to sustain the reduced disease burden.
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Ho LL, Gurung S, Mirza I, Nicolas HD, Steulet C, Burman AL, Danovaro-Holliday MC, Sodha SV, Kretsinger K. Impact of the SARS-CoV-2 pandemic on vaccine-preventable disease campaigns. Int J Infect Dis 2022; 119:201-209. [PMID: 35398300 PMCID: PMC8985404 DOI: 10.1016/j.ijid.2022.04.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/31/2022] [Accepted: 04/04/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The COVID-19 pandemic has contributed to the widespread disruption of immunization services, including the postponement of mass vaccination campaigns. METHODS In May 2020, the World Health Organization (WHO) and partners started monitoring COVID-19-related disruptions to mass vaccination campaigns against cholera, measles, meningitis A, polio, tetanus-diphtheria, typhoid and yellow fever through the Immunization Repository Campaign Delay Tracker. The authors reviewed the number and target population of reported preventive and outbreak response vaccination campaigns scheduled, postponed, canceled and reinstated, at four time-points: May 2020, December 2020, May 2021 and December 2021. FINDINGS Mass vaccination campaigns across all vaccines were disrupted heavily by COVID-19. In May 2020, 105 of 183 (57%) campaigns were postponed or canceled in 57 countries due to COVID-19, with an estimated 796 million postponed or missed vaccine doses. Campaign resumption was observed beginning in July 2020. In December 2021, 77 of 472 (16%) campaigns in 54 countries, mainly in the African Region, were still postponed or canceled due to COVID-19, with about 382 million postponed or missed vaccine doses. INTERPRETATION There is likely high risk of vaccine-preventable disease outbreaks due to an increased number of susceptible persons resulting from the large-scale mass vaccination campaign postponement caused by COVID-19 across all regions.
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Affiliation(s)
- Lee Lee Ho
- World Health Organization, Avenue Appia 20, 1211 Geneva 27, Switzerland.
| | - Santosh Gurung
- World Health Organization, Avenue Appia 20, 1211 Geneva 27, Switzerland
| | - Imran Mirza
- United Nations Children's Fund, 125 Maiden Lane, New York, NY 10038, USA
| | | | - Claudia Steulet
- World Health Organization, Avenue Appia 20, 1211 Geneva 27, Switzerland
| | - Ashley L Burman
- World Health Organization, Avenue Appia 20, 1211 Geneva 27, Switzerland
| | | | - Samir V Sodha
- World Health Organization, Avenue Appia 20, 1211 Geneva 27, Switzerland
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Muchiri SK, Muthee R, Kiarie H, Sitienei J, Agweyu A, Atkinson PM, Edson Utazi C, Tatem AJ, Alegana VA. Unmet need for COVID-19 vaccination coverage in Kenya. Vaccine 2022; 40:2011-2019. [PMID: 35184925 PMCID: PMC8841160 DOI: 10.1016/j.vaccine.2022.02.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/30/2022] [Accepted: 02/07/2022] [Indexed: 11/30/2022]
Abstract
COVID-19 has impacted the health and livelihoods of billions of people since it emerged in 2019. Vaccination for COVID-19 is a critical intervention that is being rolled out globally to end the pandemic. Understanding the spatial inequalities in vaccination coverage and access to vaccination centres is important for planning this intervention nationally. Here, COVID-19 vaccination data, representing the number of people given at least one dose of vaccine, a list of the approved vaccination sites, population data and ancillary GIS data were used to assess vaccination coverage, using Kenya as an example. Firstly, physical access was modelled using travel time to estimate the proportion of population within 1 hour of a vaccination site. Secondly, a Bayesian conditional autoregressive (CAR) model was used to estimate the COVID-19 vaccination coverage and the same framework used to forecast coverage rates for the first quarter of 2022. Nationally, the average travel time to a designated COVID-19 vaccination site (n = 622) was 75.5 min (Range: 62.9 - 94.5 min) and over 87% of the population >18 years reside within 1 hour to a vaccination site. The COVID-19 vaccination coverage in December 2021 was 16.70% (95% CI: 16.66 - 16.74) - 4.4 million people and was forecasted to be 30.75% (95% CI: 25.04 - 36.96) - 8.1 million people by the end of March 2022. Approximately 21 million adults were still unvaccinated in December 2021 and, in the absence of accelerated vaccine uptake, over 17.2 million adults may not be vaccinated by end March 2022 nationally. Our results highlight geographic inequalities at sub-national level and are important in targeting and improving vaccination coverage in hard-to-reach populations. Similar mapping efforts could help other countries identify and increase vaccination coverage for such populations.
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Affiliation(s)
- Samuel K Muchiri
- Population Health Unit, Kenya Medical Research Institute-Wellcome Trust Research Programme, Nairobi, Kenya.
| | - Rose Muthee
- Department of Health Informatics, Monitoring and Evaluation, Ministry of Health, Nairobi, Kenya
| | - Hellen Kiarie
- Department of Health Informatics, Monitoring and Evaluation, Ministry of Health, Nairobi, Kenya
| | - Joseph Sitienei
- Department of Health Informatics, Monitoring and Evaluation, Ministry of Health, Nairobi, Kenya
| | - Ambrose Agweyu
- Epidemiology and Demography Department, KEMRI-Wellcome Trust Research Programme Nairobi, Kenya
| | - Peter M Atkinson
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK; Geography and Environmental Science, University of Southampton, Highfield, Southampton SO17 1BJ, UK; Institute of Geographic Sciences and Natural Resource Research, Chinese Academy of Sciences, Beijing 100101, China
| | - C Edson Utazi
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton, UK; Southampton Statistical Sciences Research Institute, University of Southampton, Southampton, UK
| | - Andrew J Tatem
- WorldPop, School of Geography and Environmental Science, University of Southampton, Southampton, UK
| | - Victor A Alegana
- Population Health Unit, Kenya Medical Research Institute-Wellcome Trust Research Programme, Nairobi, Kenya; Geography and Environmental Science, University of Southampton, Highfield, Southampton SO17 1BJ, UK
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Kim S, Kim SA, Hong H, Choi SR, Na HY, Shin SU, Park KH, Jung SI, Shin MH, Kweon SS, Kang SJ. Measles Susceptibility of Marriage Migrant Women in Korea. Epidemiol Health 2022; 44:e2022031. [PMID: 35381170 PMCID: PMC9117101 DOI: 10.4178/epih.e2022031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 03/12/2022] [Indexed: 11/24/2022] Open
Abstract
International migrants could be considered a risk group susceptible to vaccine-preventable diseases. We conducted a measles seroprevalence study among 419 marriage migrant women living in Sinan-gun and Wando-gun, South Jeolla Province, located in the southwestern part of Korea. The overall seroimmunity was 92.8%. The seroimmunity varied considerably according to the country of origin and increased with age. Our current analysis could be valuable in the context of discussions concerning vaccination policies for immigrants in Korea.
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Affiliation(s)
- Sooyeon Kim
- Jeonnam Communicable Disease Management Support Team, Muan, Korea
| | - Sun A Kim
- Jeonnam Communicable Disease Management Support Team, Muan, Korea
- Honam Regional Center for Disease Control and Prevention, Gwangju, Korea
| | - Hanbich Hong
- Jeonnam Communicable Disease Management Support Team, Muan, Korea
| | | | - Hae-Young Na
- Jeonnam Communicable Disease Management Support Team, Muan, Korea
- Jeollanam-do Institute of Health and Environment, Muan, Korea
| | - Sung Un Shin
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Korea
| | - Kyung-Hwa Park
- Department of Internal Medicine, Chonnam National University Medical School, Hwasun, Korea
| | - Sook In Jung
- Department of Internal Medicine, Chonnam National University Medical School, Hwasun, Korea
| | - Min-Ho Shin
- Jeonnam Communicable Disease Management Support Team, Muan, Korea
- Department of Preventive Medicine, Chonnam National University Medical School, Hwasun, Korea
| | - Sun-Seog Kweon
- Jeonnam Communicable Disease Management Support Team, Muan, Korea
- Department of Preventive Medicine, Chonnam National University Medical School, Hwasun, Korea
| | - Seung Ji Kang
- Jeonnam Communicable Disease Management Support Team, Muan, Korea
- Department of Internal Medicine, Chonnam National University Medical School, Hwasun, Korea
- Correspondence: Seung Ji Kang Department of Internal Medicine, Chonnam National University Medical School, 264 Seoyang-ro, Hwasun-eup, Hwasun 58128, Korea E-mail:
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Abstract
Measles is a highly contagious, potentially fatal, but vaccine-preventable disease caused by measles virus. Symptoms include fever, maculopapular rash, and at least one of cough, coryza, or conjunctivitis, although vaccinated individuals can have milder or even no symptoms. Laboratory diagnosis relies largely on the detection of specific IgM antibodies in serum, dried blood spots, or oral fluid, or the detection of viral RNA in throat or nasopharyngeal swabs, urine, or oral fluid. Complications can affect many organs and often include otitis media, laryngotracheobronchitis, pneumonia, stomatitis, and diarrhoea. Neurological complications are uncommon but serious, and can occur during or soon after the acute disease (eg, acute disseminated encephalomyelitis) or months or even years later (eg, measles inclusion body encephalitis and subacute sclerosing panencephalitis). Patient management mainly involves supportive therapy, such as vitamin A supplementation, monitoring for and treatment of secondary bacterial infections with antibiotics, and rehydration in the case of severe diarrhoea. There is no specific antiviral therapy for the treatment of measles, and disease control largely depends on prevention. However, despite the availability of a safe and effective vaccine, measles is still endemic in many countries and causes considerable morbidity and mortality, especially among children in resource-poor settings. The low case numbers reported in 2020, after a worldwide resurgence of measles between 2017 and 2019, have to be interpreted cautiously, owing to the effect of the COVID-19 pandemic on disease surveillance. Disrupted vaccination activities during the pandemic increase the potential for another resurgence of measles in the near future, and effective, timely catch-up vaccination campaigns, strong commitment and leadership, and sufficient resources will be required to mitigate this threat.
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Affiliation(s)
- Judith M Hübschen
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.
| | - Ionela Gouandjika-Vasilache
- Laboratoire des Virus Entériques et de la Rougeole, Institut Pasteur de Bangui, Bangui, Central African Republic
| | - Julia Dina
- Virology Department, Normandie University, UNICAEN, INSERM U1311 DynaMicURe, Caen University Hospital, Caen, France
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Shet A, Carr K, Danovaro-Holliday MC, Sodha SV, Prosperi C, Wunderlich J, Wonodi C, Reynolds HW, Mirza I, Gacic-Dobo M, O'Brien KL, Lindstrand A. Impact of the SARS-CoV-2 pandemic on routine immunisation services: evidence of disruption and recovery from 170 countries and territories. Lancet Glob Health 2022; 10:e186-e194. [PMID: 34951973 PMCID: PMC8691849 DOI: 10.1016/s2214-109x(21)00512-x] [Citation(s) in RCA: 152] [Impact Index Per Article: 76.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 09/29/2021] [Accepted: 10/20/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND The SARS-CoV-2 pandemic has revealed the vulnerability of immunisation systems worldwide, although the scale of these disruptions has not been described at a global level. This study aims to assess the impact of COVID-19 on routine immunisation using triangulated data from global, country-based, and individual-reported sources obtained during the pandemic period. METHODS This report synthesised data from 170 countries and territories. Data sources included administered vaccine-dose data from January to December, 2019, and January to December, 2020, WHO regional office reports, and a WHO-led pulse survey administered in April, 2020, and June, 2020. Results were expressed as frequencies and proportions of respondents or reporting countries. Data on vaccine doses administered were weighted by the population of surviving infants per country. FINDINGS A decline in the number of administered doses of diphtheria-pertussis-tetanus-containing vaccine (DTP3) and first dose of measles-containing vaccine (MCV1) in the first half of 2020 was noted. The lowest number of vaccine doses administered was observed in April, 2020, when 33% fewer DTP3 doses were administered globally, ranging from 9% in the WHO African region to 57% in the South-East Asia region. Recovery of vaccinations began by June, 2020, and continued into late 2020. WHO regional offices reported substantial disruption to routine vaccination sessions in April, 2020, related to interrupted vaccination demand and supply, including reduced availability of the health workforce. Pulse survey analysis revealed that 45 (69%) of 65 countries showed disruption in outreach services compared with 27 (44%) of 62 countries with disrupted fixed-post immunisation services. INTERPRETATION The marked magnitude and global scale of immunisation disruption evokes the dangers of vaccine-preventable disease outbreaks in the future. Trends indicating partial resumption of services highlight the urgent need for ongoing assessment of recovery, catch-up vaccination strategy implementation for vulnerable populations, and ensuring vaccine coverage equity and health system resilience. FUNDING US Agency for International Development.
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Affiliation(s)
- Anita Shet
- International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Kelly Carr
- International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | | | | | - Christine Prosperi
- International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | | | - Chizoba Wonodi
- International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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Sabahelzain MM, Moukhyer M, van den Borne B, Bosma H. Vaccine Hesitancy among Parents and Its Association with the Uptake of Measles Vaccine in Urban Settings in Khartoum State, Sudan. Vaccines (Basel) 2022; 10:205. [PMID: 35214664 PMCID: PMC8875338 DOI: 10.3390/vaccines10020205] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/20/2022] [Accepted: 01/26/2022] [Indexed: 12/10/2022] Open
Abstract
Vaccine uptake is one of the indicators that has been used to guide immunization programs. This study aimed to evaluate whether measles vaccine uptake is predicted by measles vaccine hesitancy. A community-based cross-sectional study was conducted in urban districts in Khartoum state in February 2019. Measles vaccine uptake among children was measured as either fully vaccinated or partially/not vaccinated. The Parent Attitudes about Childhood Vaccines (PACV) scale was used to measure measles vaccine hesitancy. Multivariate logistic regression was run to identify the predictors of measles vaccination uptake, controlling for sociodemographic variables, and the adjusted odds ratios (aORs) with 95% CI were calculated. The receiver operator characteristic (ROC) curve was created, and the area under the curve (AUC) for the PACV was computed. Data were collected from 495 participants. We found that measles vaccine hesitancy (PACV scores) predicts the uptake of measles vaccine after controlling for other potential social confounders, such as the mother's age and the number of children (aOR 1.055; 95% CI 1.028-1.028). Additionally, the ROC for the PACV yielded an area under the curve (AUC 0.686 (95% CI 0.620-0.751; p < 0.001)). Our findings show that measles vaccine hesitancy in Sudan directly influences the uptake of the measles vaccine. Addressing the determinants of vaccine hesitancy through communication strategies will improve vaccine uptake.
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Affiliation(s)
- Majdi M. Sabahelzain
- Department of Public Health, School of Health Sciences, Ahfad University for Women, Omdurman P.O. Box 167, Sudan
- Department of Health Promotion, Care and Public Health Research Institute (CAPHRI), Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands;
| | - Mohamed Moukhyer
- Department of Research and Development, Faculty of Applied Medical Sciences, Jazan University, Jizan 45142, Saudi Arabia;
- Department of Emergency Medical Services, Faculty of Applied Medical Sciences, Jazan University, Jizan 45142, Saudi Arabia
- Public Health Programmes, School of Medicine, University of Limerick, V94 PX58 Limerick, Ireland
| | - Bart van den Borne
- Department of Health Promotion, Care and Public Health Research Institute (CAPHRI), Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands;
| | - Hans Bosma
- Department of Social Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands;
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NeJhaddadgar N, Toghroli R, Yoosefi lebni J, A Melca I, Ziapour A. Exploring the Barriers in Maintaining the Health Guidelines Amid the COVID-19 Pandemic: A Qualitative Study Approach. INQUIRY : A JOURNAL OF MEDICAL CARE ORGANIZATION, PROVISION AND FINANCING 2022; 59:469580221100348. [PMID: 35611718 PMCID: PMC9133901 DOI: 10.1177/00469580221100348] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/24/2022] [Accepted: 04/26/2022] [Indexed: 11/19/2022]
Abstract
Due to the Irretrievable impacts of the COVID-19 pandemic on society, this study aimed to analyze the barriers and reasons for the Iranian people's implementation of public health measures during the COVID-19 pandemic in 2021. The study explores the barriers and reasons for non-compliance by Iranian people in following and maintaining the health guidelines to combat the spread of the coronavirus in 2021. This research is qualitative and recorded participants' feedback from the Ardabil province of Iran. The study used a purposeful sampling method and lasted from April to May 2021 to collect the data through semi-structured interviews with 45 participants based on their gender, education, employment status, and marital status. The researchers analyzed the qualitative content until the required data-target through interviews implementation. This study incorporated MAXQDA version 10 to analyze the data and followed Goba and Lincoln's criteria to ensure quality research results. After analyzing the data, two main categories (internal and external barriers) and seven subcategories were obtained. The internal barriers exhibited further classified subcategories, such as mental, belief, and awareness barriers. The results indicated that external barriers included social, political, managerial, and economic barriers. The study results designated that a set of internal and external factors might cause individuals' non-compliance with health guidelines and standard SOPs in the advent of the pandemic COVID-19. Recognition of such factors, identified following the social, cultural, and political context and individuals' characteristics during the COVID-19 outbreak, can be used effectively to plan educational and management programs. As a result, elimination and eradication of obstacles and the relevant dimensions may facilitate disease control. Moreover, the high prevalence and spread of the disease can be managed by reducing the influence of factors preventing proper health behaviors.
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Affiliation(s)
- Nazila NeJhaddadgar
- Social Determinants of Health
Research Center, Ardabil University of Medical
Sciences, Ardabil, Iran
| | - Razie Toghroli
- Social Determinants in Health
Promotion Research Center, Hormozgan Health Institute, Hormozgan University of Medical
Sciences, Bandar Abbas, Iran
| | - Javad Yoosefi lebni
- Social Determinants of Health
Research Center, Lorestan University of Medical
Sciences, Khorramabad, Iran
| | - Isabela A Melca
- Institute of Psychiatry, Federal University of Rio de
Janeiro, Rio de Janeiro, Brazil
| | - Arash Ziapour
- Cardiovascular Research Center,
Health Institute, Kermanshah University of Medical
Sciences, Kermanshah, Iran
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