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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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Ji WY, Liu DL, Yu R, Miao L, Yuan QL, Suo LD, Yu JP. Vaccination coverage survey of children aged 1-3 years in Beijing, China, 2005-2021. Vaccine 2023; 41:6444-6452. [PMID: 37709591 DOI: 10.1016/j.vaccine.2023.08.015] [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: 04/21/2023] [Revised: 08/06/2023] [Accepted: 08/07/2023] [Indexed: 09/16/2023]
Abstract
BACKGROUND The routine immunization program for children is a primary strategy and a core part of vaccination. Achieving and maintaining high level of vaccination coverage are important to reduce morbidity and mortality caused by vaccine-preventable diseases. In Beijing, annual coverage surveys have been conducted since 2005. It is necessary and possible to assess the level and trend of routine vaccination coverage of children in Beijing as well as the disruption of coronavirus disease 2019 (COVID-19) pandemic and provide the reference for the further improve the vaccination coverage. METHODS The data of 61,521 children aged 1-3 years in the vaccination coverage surveys during 2005-2021 were analyzed by Beijing Center for Disease Control and Prevention. Descriptive epidemiological method was used to analyze the data and the difference of vaccination coverage within the time period. RESULTS More than 99 % of participants had immunization cards and electronic immunization records. The concordance rate of both records were also over 99 %. During 2011-2019, the rates of on-time and in-time vaccination of each routine vaccine reached 96 % or more and increased significantly (all P values <0.05), compared with that of 2005-2010. All rates of the investigated vaccine, except for Bacillus Calmette-Guérin vaccine (BCG) and the first dose of hepatitis B vaccine (HepB), decreased in 2020-2021 significantly (all P values <0.05). For the causes of failing to vaccinate on time, delayed vaccination accounted for 47.82 %. The top two vaccines to be missed were the first dose of hepatitis A vaccine and the 4th dose of diphtheria-tetanus-acellular pertussis vaccine, accounting for 21.41 % and 20.79 %, respectively. The main reason for zero-dose/drop-out vaccination was "Guardians regarded the immunization service time as inappropriate", accounting for 72.27 %. CONCLUSION The coverage level and service quality of routine immunization in Beijing were relatively high. However, as influenced by COVID-19 epidemics, both on-time and in-time vaccination rates decreased significantly, except for BCG and HepB. Under the background of COVID-19 pandemic, the keys to maintain high level of vaccination coverage include flexible immunization service time to ensure the guardians bringing their children for vaccination timely, and more attention from providers to the doses after children's first birthday.
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Affiliation(s)
- Wen-Yan Ji
- Institute of Immunization, Beijing Center for Disease Control and Prevention, Beijing, PR China
| | - Dong-Lei Liu
- Department of Vaccines Management and Supply, Beijing Center for Disease Control and Prevention, Beijing 100013, PR China
| | - Rui Yu
- Institute of Immunization, Beijing Center for Disease Control and Prevention, Beijing, PR China
| | - Liang Miao
- Institute of Immunization, Beijing Center for Disease Control and Prevention, Beijing, PR China
| | - Qian-Li Yuan
- Institute of Immunization, Beijing Center for Disease Control and Prevention, Beijing, PR China
| | - Luo-Dan Suo
- Institute of Immunization, Beijing Center for Disease Control and Prevention, Beijing, PR China
| | - Jian-Ping Yu
- Office of Beijing Center for Disease Control and Prevention, Beijing 10013, PR China.
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Zhang C, Liu Y, Zhao H, Wang G. Global Patterns and Trends in Total Burden of Hepatitis B from 1990 to 2019 and Predictions to 2030. Clin Epidemiol 2022; 14:1519-1533. [PMID: 36540899 PMCID: PMC9760077 DOI: 10.2147/clep.s389853] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 12/02/2022] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND AND AIMS Despite widespread vaccination against hepatitis B and availability of antiviral drugs, hepatitis B remained a major global public health problem. Therefore, an improved understanding of the burden of hepatitis B was required to help design strategies for global intervention. METHODS Data on hepatitis B was collected by the Global Burden of Disease (GBD) 2019 database from 1990 to 2019. Age-standardized incidence rates (ASIR), mortality rates (ASMR) and disability-adjusted life year rates (ASDR) for hepatitis B were extracted from GBD 2019 and stratified by age, level of regionals and country. Estimated annual percentage changes (EAPC) of ASIR, ASMR and ASDR were calculated to quantify the temporal trends in hepatitis B. RESULTS Globally, ASIR showed a continuous downward trend, from 1552.2 in 1990 to 1010.0 per 100,000 persons in 2019, with an annual decrease of 1.52% (95% CI -1.66--1.38). ASMR showed a persistent decline, declining by nearly half in 2019 compared to 1990 (6.7 vs 12.4 per 100,000 persons), with an annual decrease of 2.55% (95% CI -2.74--2.35). ASDR showed a continuing downward trend, and the EAPC was -2.55% (95% CI -2.74--2.35). This decreasing pattern was heterogeneous across regions and countries. Hepatitis B related deaths increased significantly in high socio-demographic index countries such as UK, USA, and Canada. The ARIMA model estimates a 36.14% and 6.00% decrease in ASIR and ASMR, respectively, by 2030 compared to 2015. CONCLUSION Global hepatitis B morbidity and mortality rates decreased significantly from 1990 to 2019, but with a high degree of heterogeneity among regions and countries. It was still far from achieving the WHO goal of elimination of viral hepatitis by 2030, especially mortality rate.
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Affiliation(s)
- Chi Zhang
- Department of Infectious Disease, Center for Liver Disease, Peking University First Hospital, Beijing, 100034, People’s Republic of China
| | - Yiqi Liu
- Department of Infectious Disease, Center for Liver Disease, Peking University First Hospital, Beijing, 100034, People’s Republic of China
| | - Hong Zhao
- Department of Infectious Disease, Center for Liver Disease, Peking University First Hospital, Beijing, 100034, People’s Republic of China
- Department of Infectious Diseases, Peking University International Hospital, Beijing, 102206, People’s Republic of China
| | - Guiqiang Wang
- Department of Infectious Disease, Center for Liver Disease, Peking University First Hospital, Beijing, 100034, People’s Republic of China
- Department of Infectious Diseases, Peking University International Hospital, Beijing, 102206, People’s Republic of China
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Wariri O, Okomo U, Kwarshak YK, Utazi CE, Murray K, Grundy C, Kampmann B. Timeliness of routine childhood vaccination in 103 low-and middle-income countries, 1978-2021: A scoping review to map measurement and methodological gaps. PLOS GLOBAL PUBLIC HEALTH 2022; 2:e0000325. [PMID: 36962319 PMCID: PMC10021799 DOI: 10.1371/journal.pgph.0000325] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 06/14/2022] [Indexed: 11/19/2022]
Abstract
Empiric studies exploring the timeliness of routine vaccination in low-and middle-income countries (LMICs) have gained momentum in the last decade. Nevertheless, there is emerging evidence suggesting that these studies have key measurement and methodological gaps that limit their comparability and utility. Hence, there is a need to identify, and document these gaps which could inform the design, conduct, and reporting of future research on the timeliness of vaccination. We synthesised the literature to determine the methodological and measurement gaps in the assessment of vaccination timeliness in LMICs. We searched five electronic databases for peer-reviewed articles in English and French that evaluated vaccination timeliness in LMICs, and were published between 01 January 1978, and 01 July 2021. Two reviewers independently screened titles and abstracts and reviewed full texts of relevant articles, following the guidance framework for scoping reviews by the Joanna Briggs Institute. From the 4263 titles identified, we included 224 articles from 103 countries. China (40), India (27), and Kenya (23) had the highest number of publications respectively. Of the three domains of timeliness, the most studied domain was 'delayed vaccination' [99.5% (223/224)], followed by 'early vaccination' [21.9% (49/224)], and 'untimely interval vaccination' [9% (20/224)]. Definitions for early (seven different definitions), untimely interval (four different definitions), and delayed vaccination (19 different definitions) varied across the studies. Most studies [72.3% (166/224)] operationalised vaccination timeliness as a categorical variable, compared to only 9.8% (22/224) of studies that operationalised timeliness as continuous variables. A large proportion of studies [47.8% (107/224)] excluded the data of children with no written vaccination records irrespective of caregivers' recall of their vaccination status. Our findings show that studies on vaccination timeliness in LMICs has measurement and methodological gaps. We recommend the development and implement of guidelines for measuring and reporting vaccination timeliness to bridge these gaps.
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Affiliation(s)
- Oghenebrume Wariri
- Vaccines and Immunity Theme, MRC Unit The Gambia at London School of Hygiene and Tropical Medicine, Fajara, The 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
| | - Uduak Okomo
- Vaccines and Immunity Theme, MRC Unit The Gambia at London School of Hygiene and Tropical Medicine, Fajara, The Gambia
| | | | - 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
| | - Kris Murray
- MRC Unit The Gambia at The London School of Hygiene and Tropical Medicine, Fajara, The Gambia
- MRC Centre for Global Infectious Disease Analysis, Imperial College School of Public Health, Imperial College London, London, United Kingdom
| | - 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 at London School of Hygiene and Tropical Medicine, Fajara, The Gambia
- Vaccine Centre, London School of Hygiene and Tropical Medicine, London, United Kingdom
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Bianchi FP, Stefanizzi P, Trerotoli P, Tafuri S. Sex and age as determinants of the seroprevalence of anti-measles IgG among European healthcare workers: A systematic review and meta-analysis. Vaccine 2022; 40:3127-3141. [PMID: 35491343 DOI: 10.1016/j.vaccine.2022.04.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 03/14/2022] [Accepted: 04/04/2022] [Indexed: 12/25/2022]
Abstract
INTRODUCTION The international literature shows good evidence of a significant rate of measles susceptibility among healthcare workers (HCWs). As such, they are an important public health issue. METHODS We conducted a systematic review and meta-analysis to estimate the prevalence of susceptible HCWs in EU/EEA countries and in the UK and to explore the characteristics (sex and age differences) and management of those found to be susceptible. RESULTS Nineteen studies were included in the meta-analysis. The prevalence of measles-susceptible HCWs was 13.3% (95 %CI: 10.0-17.0%). In a comparison of serosusceptible female vs. male HCWs, the RR was 0.92 (95 %CI = 0.83-1.03), and in a comparison of age classes (born after vs. before 1980) the RR was 2.78 (95 %CI = 2.20-3.50). The most recent studies proposed the mandatory vaccination of HCWs. DISCUSSION According to our meta-analysis, the prevalence of serosusceptible European HCWs is 13%; HCWs born in the post-vaccination era seem to be at higher risk. Healthcare professionals susceptible to measles are a serious epidemiological concern. Greater efforts should therefore be made to identify those who have yet to be vaccinated and actively encourage their vaccination.
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Affiliation(s)
| | - Pasquale Stefanizzi
- Department of Biomedical Science and Human Oncology, Aldo Moro University of Bari, Italy
| | - Paolo Trerotoli
- Department of Biomedical Science and Human Oncology, Aldo Moro University of Bari, Italy
| | - Silvio Tafuri
- Department of Biomedical Science and Human Oncology, Aldo Moro University of Bari, Italy.
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Eryurt MA, Yalçin SS. Zero-dose children in Turkey: regional comparison of pooled data for the period 1990 to 2018. BMC Infect Dis 2022; 22:421. [PMID: 35501702 PMCID: PMC9063378 DOI: 10.1186/s12879-022-07416-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 04/26/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Immunization plays a vital role in child health and survival. Zero-dose children are coming increasingly into focus as part of the global Immunization Agenda 2030. Although the percentage of zero-dose children has decreased in Turkey over time, regional/socioeconomic inequalities persist. This study aims to analyze the trend in zero-dose children and the factors associated with this problem in Turkey in light of regional inequalities. METHODS Six data sets (1993, 1998, 2003, 2008, 2013, and 2018) were pooled from the last six Turkey Demographic and Health Surveys (TDHSs). The vaccination module for children aged 12-35 months and variables related to household characteristics, socio-economic, cultural characteristics of parents, bio-demographic/health-related factors were taken from the DHS data. Binary logistic regression analyses were carried out by taking into account the complex sample design of surveys for Turkey in general, the East region, and other regions. RESULTS Significant progress has been made in reducing the number of zero-dose children in Turkey over the last three decades, as it has dropped from 3.2 to 0.9%. The results of multivariate analyses revealed that survey year, household wealth, the mother's level of education, payment of bride price, mother's native language, place of delivery, and the number of antenatal care visits are associated with zero-dose children. Factors associated with zero-dose children also differ between the East region, and other regions. CONCLUSION Public health programs targeting uneducated parents, poor households, lack of social security, Kurdish-speaking mothers, older mothers and those without antenatal care should be implemented to promote childhood immunization.
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Affiliation(s)
- Mehmet Ali Eryurt
- Institute of Population Studies, Hacettepe University, Ankara, Turkey
| | - Siddika Songül Yalçin
- Department of Pediatrics, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
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Bassoum O, Sougou NM, Ba MF, Anne M, Bocoum M, Dieye A, Sokhna C, Tal-Dia A. Vaccination against tuberculosis, polio and hepatitis B at birth in Podor health district, Northern Senegal: cross-sectional study of vaccination coverage and its associated factors. BMC Public Health 2022; 22:110. [PMID: 35033057 PMCID: PMC8761353 DOI: 10.1186/s12889-022-12535-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 01/04/2022] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND In Senegal, studies focusing specifically on vaccination coverage with the Bacille de Calmette et Guérin (BCG) vaccine, the birth dose of oral polio vaccine (OPV zero dose) and the birth dose of hepatitis B (HepB-BD) vaccine are insufficient. This study aimed to highlight vaccination coverages with birth doses and factors associated with timely vaccination in Podor health district. METHODS A cross-sectional study was carried out from June 19 to 22, 2020. The study population consisted of children aged 12 to 23 months of which 832 were included. A stratified two-stage cluster survey was carried out. The sources of data were home-based records (HBR), health facility registries (HFR) and parental recalls. Timely vaccination refers to any vaccination that has taken place within 24 h after birth. Descriptive analyzes, the chi-square test and logistic regression were performed. RESULTS The crude vaccination coverages with BCG, OPV zero dose and HepB-BD were 95.2%, 88.3% and 88.1%, respectively. Vaccination coverages within 24 h after birth were estimated at 13.9%, 30% and 42.1%, respectively. The factors associated with timely HepB-BD are delivery in a health facility (AOR = 1.55; 95% CI = 1.02-2.40), access to television (AOR = 1.63; 95% CI = 1.16-2.29), weighing (AOR = 3.92; 95% CI = 1.97-8.53) and hospitalization of the newborn immediately after birth (AOR = 0.42; 95% CI = 0.28-0.62). CONCLUSION Timely administration of birth doses is a challenge in the Podor health district. The solutions would be improving geographic access to health facilities, involving community health workers, raising awareness and integrating health services.
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Affiliation(s)
- Oumar Bassoum
- Service de Médecine Préventive Et de Santé Publique, Faculté de Médecine, de Pharmacie Et d'Odontologie (FMPO), Université Cheikh Anta Diop (UCAD), Dakar, Sénégal.
- Institut de Santé Et Développement, Université Cheikh Anta Diop, Dakar, Sénégal.
| | - Ndeye Mareme Sougou
- Service de Médecine Préventive Et de Santé Publique, Faculté de Médecine, de Pharmacie Et d'Odontologie (FMPO), Université Cheikh Anta Diop (UCAD), Dakar, Sénégal
- Institut de Santé Et Développement, Université Cheikh Anta Diop, Dakar, Sénégal
| | - Mouhamadou Faly Ba
- Institut de Santé Et Développement, Université Cheikh Anta Diop, Dakar, Sénégal
| | - Malick Anne
- Ministère de La Santé Et de L'Action Sociale, Dakar, Sénégal
| | - Mamoudou Bocoum
- Ministère de La Santé Et de L'Action Sociale, Dakar, Sénégal
| | | | - Cheikh Sokhna
- Institut de Recherche Pour Le Développement, Campus UCAD/IRD de Hann, Dakar, Sénégal
- Institut Hospitalo-Universitaire - Méditerranée Infection, Marseille, France
| | - Anta Tal-Dia
- Service de Médecine Préventive Et de Santé Publique, Faculté de Médecine, de Pharmacie Et d'Odontologie (FMPO), Université Cheikh Anta Diop (UCAD), Dakar, Sénégal
- Institut de Santé Et Développement, Université Cheikh Anta Diop, Dakar, Sénégal
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Rauniyar SK, Iwaki Y, Yoneoka D, Hashizume M, Nomura S. Age-appropriate vaccination coverage and its determinants in children aged 12-36 months in Nepal: a national and subnational assessment. BMC Public Health 2021; 21:2063. [PMID: 34758802 PMCID: PMC8582094 DOI: 10.1186/s12889-021-11841-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 09/16/2021] [Indexed: 11/13/2022] Open
Abstract
Background Vaccination is one of the effective ways to develop immunity against potential life-threatening diseases in children in early age. This study is focused on analysing the age-appropriate vaccination coverage at national and subnational levels and identify the factors associated with age-appropriate coverage in Nepal. Methods 460 children aged 12–36 months were included in the study. The data was obtained from Nepal Demographic and Health Survey (NDHS) 2016–17. Age-appropriate coverage of Bacillus Calmette-Guerin vaccine (BCG), oral polio vaccine (OPV) doses 1–3, pentavalent vaccine (PE) doses 1–3, and first dose of measles, mumps, and rubella vaccine (MMR) were estimated using Kaplan Meier method. Multilevel logistic regression with random intercept was used to identify the factors associated with age-appropriate vaccination. Results The crude coverage of the vaccines included in the study ranged from 91.5% (95% CI, 88.5–93.7) for PE3 to 97.8% (95.8–98.7) for BCG. Although the crude coverage of all the vaccines was above 90%, the age-appropriate coverage was significantly low, ranging from 41.5% (36.5–46.6) for PE3 to 73.9% (69.2–78.1) for PE1. Furthermore, high disparity in timely vaccination coverage was observed at regional level. Compared to the age-appropriate vaccination coverage in other provinces, Province 2 had the lowest coverage of all, followed by that in Province 6. The timeliness of vaccination was significantly associated with subnational regions i.e., provinces and the season of childbirth. Conclusion Although the immunization program in Nepal has achieved the target of 90% crude coverage of all the childhood vaccines, the age-appropriate coverage is significantly low which undermines the effectiveness of the vaccines administered. Thus, along with crude coverage, timeliness of the vaccines administered should be taken into consideration and thoroughly monitored at national and subnational levels. Provincial government should formulate tailored strategies to ensure the timely administration of the childhood vaccines. Supplementary Information The online version contains supplementary material available at 10.1186/s12889-021-11841-2.
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Affiliation(s)
- Santosh Kumar Rauniyar
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
| | - Yoko Iwaki
- SciREX Centre, National Graduate Institute for Policy Studies, Tokyo, Japan
| | - Daisuke Yoneoka
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Graduate School of Public Health, St. Luke's International University, Tokyo, Japan
| | - Masahiro Hashizume
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shuhei Nomura
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
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Umeokonkwo AA, Ezeonu TC, Agu AP, Umeokonkwo CD. Timeliness of Vaccination among Children Attending Immunization Clinic at a Tertiary Hospital in South-East Nigeria. Niger Med J 2021; 62:153-161. [PMID: 38694215 PMCID: PMC11058447 DOI: 10.60787/nmj-62-4-29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2024] Open
Abstract
Background Timely vaccination of children is one of the most cost-effective interventions that ensure childhood survival. We determined the proportion of children who received timely vaccination and examined the factors associated with timely receipt of Bacillus Calmette Guerin (BCG) and third dose of pentavalent vaccine (Penta 3). Methodology We conducted a cross-sectional survey among 599 caregivers-infant pair aged less than 24months, attending the immunization clinic of a tertiary hospital in Nigeria, selected using systematic sampling methods. Using a structured questionnaire, we access the proportion of children who received timely vaccination, the relationship between the timely receipt of BCG, Penta 3 vaccine and infant/caregiver characteristics was examined using chi-square and multiple logistic regression at a 5% level of significance. Results The mean age of the respondents was 30.1±5.0 years. The majority (73.8%) had attained tertiary education, lived in an urban setting (90.9%), had received antenatal care during pregnancy (99.3%) and was delivered in a hospital (97.0%). About half of the children (52.9%) were male. About 18% of the caregivers reported missing scheduled immunization visits, due to forgetfulness (18%), child illness (14%) and being busy (5%). About 88% (482) of the children got their BCG vaccines on time, 91.1% got timely OPV0, however, only 29.5% of the newborns got HBV0 within 24 hours of birth. Only 65.7% and 65.0% received the timely measles-containing vaccine and yellow fever vaccine. None of the factors examined predicted timely receipt of BCG and Penta 3 vaccines. Conclusion Interventions that remind caregivers about the immunization schedules, could improve timely vaccination.
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Affiliation(s)
- Adanna Anthonia Umeokonkwo
- Department of Paediatrics, Alex Ekwueme Federal University Teaching Hospital Abakaliki, Ebonyi State Nigeria
| | - Thecla Chinonyelum Ezeonu
- Department of Paediatrics, Alex Ekwueme Federal University Teaching Hospital Abakaliki, Ebonyi State Nigeria
| | - Adaoha Pearl Agu
- Department of Community Medicine, Alex Ekwueme Federal University Teaching Hospital Abakaliki, Ebonyi State, Nigeria
- Department of Community Medicine, Ebonyi State University Abakaliki, Nigeria
| | - Chukwuma David Umeokonkwo
- Department of Community Medicine, Alex Ekwueme Federal University Teaching Hospital Abakaliki, Ebonyi State, Nigeria
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Yang X, Tang T, Yang Z, Liu L, Yuan S, Zhang T. Evaluation of measles vaccination coverage in Lincang City, Yunnan Province, China. Hum Vaccin Immunother 2021; 17:3145-3152. [PMID: 33847247 DOI: 10.1080/21645515.2021.1911215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Background: Lincang City in Yunnan Province on the China-Myanmar border, has reached the World Health Organization recommended coverage (95%) for measles-containing vaccine (MCV), but measles outbreaks still occur. We conducted a survey in Lincang City to determine the measles vaccination status of children on the China-Myanmar border.Methods: We used multistage sampling among children aged 8-83 months. Information on measles vaccination status was obtained from the child's vaccination certificate, and serum samples were tested using commercially available ELISA kits.Results: A total of 938 children were surveyed. The vaccination coverage rate was 98.9% (95% CI: 98.2-99.6%) for measles-containing vaccine dose 1 (MCV1), and 95.8% (95% CI:94.9-96.7%) for measles-containing vaccine dose 2 (MCV2). The timely vaccination coverage rate was 52.0% (95% CI:48.8-55.2%) for MCV1, and 74.1% (95% CI: 82.9-89.0%) for MCV2. The timely-and-complete vaccination coverage rate was 41.0% (95% CI: 36.7-45.3%). The median delay period was 33 (95% CI: 27-39) days for MCV1, and 196 (95% CI: 146-246) days for MCV2. The seropositivity rate in children aged less than 7 years was 94.0% (95% CI: 92.5-95.5%) with a geometric mean titer of 1210.1 mIU/mL.Conclusions: The MCV coverage was high, but timely and timely-and-complete vaccination coverage were low and insufficient to prevent measles outbreaks. It is necessary to add the timely and timely-and-complete vaccination coverage as indicators of vaccination to provide a more complete picture of measles immunization status.
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Affiliation(s)
- Xiaotong Yang
- Epidemiology and Biostatistics Unit, Faculty of Public Health, Dali University, Dali, China
| | - Tingting Tang
- Department of Expanded Program on Immunization, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Zhikang Yang
- Epidemiology and Biostatistics Unit, Faculty of Public Health, Dali University, Dali, China
| | - Lu Liu
- Epidemiology and Biostatistics Unit, Faculty of Public Health, Dali University, Dali, China
| | - Shuyi Yuan
- Expanded Program on Immunization Department, Lincang Center for Disease Control and Prevention, Lincang City, China
| | - Tai Zhang
- Epidemiology and Biostatistics Unit, Faculty of Public Health, Dali University, Dali, China
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