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Lundberg A, Soetikno AG, Wu SA, Ozer E, Welch SB, Mason M, Murphy R, Hawkins C, Liu Y, Moss C, Havey RJ, Achenbach C, Post LA. Sub-Saharan Africa Surveillance Metrics and History of the COVID-19 Pandemic: Updated Epidemiological Assessment. JMIR Public Health Surveill 2024. [PMID: 39013111 DOI: 10.2196/53409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2024] Open
Abstract
BACKGROUND This study updates the COVID-19 pandemic surveillance in Sub-Saharan Africa (SSA) we first conducted in 2020 by providing two additional years of data for the region. OBJECTIVE First, we aim to measure whether there was an expansion or contraction in the pandemic in SSA when the World Health Organization (WHO) declared the end of the public health emergency for the COVID-19 pandemic on May 5, 2023. Second, we use dynamic and genomic surveillance methods to describe the history of the pandemic in the region and situate the window of the WHO declaration within the broader history. Third, we aim to provide historical context for the course of the pandemic in SSA. METHODS In addition to updates of traditional surveillance data and dynamic panel estimates from the original study by Post et al. (2021), this study used data on sequenced SARS-CoV-2 variants from the Global Initiative on Sharing All Influenza Data (GISAID) to identify the appearance and duration of variants of concern. We used Nextclade nomenclature to collect clade designations from sequences and Pangolin nomenclature for lineage designations of SARS-CoV-2. Finally, we conducted a one-sided t-test for whether regional weekly speed was greater than an outbreak threshold of ten. We ran the test iteratively with a rolling, six month-window of data across the sample period. RESULTS Speed for the region remained well below the outbreak threshold before and after the WHO declaration. Acceleration and jerk were also low and stable. The 7-day persistence coefficient remained somewhat large (1.11) and statistically significant. However, both shift parameters for the weeks around the WHO declaration were negative, meaning the clustering effect of new COVID-19 cases had become recently smaller. From November 2021 onward, Omicron was the predominant variant of concern in sequenced viral samples. The rolling t-test of speed equal to ten was insignificant for the entire sample period. CONCLUSIONS While COVID-19 continues to circulate in SSA, the region never reached outbreak status, and the weekly transmission rate had remained below one case per 100,000 population for well over one year ahead of the WHO declaration. COVID-19 is endemic in the region and no longer reaches the threshold of a pandemic definition. Both standard and enhanced surveillance metrics confirm that the pandemic had ended in SSA by the time of the WHO declaration. CLINICALTRIAL
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Affiliation(s)
- Alexander Lundberg
- Buehler Center for Health Policy and Economics, Robert J. Havey, MD Institute for Global Health, Northwestern University, 420 E. Superior, Chicago, US
- Department of Emergency Medicine, Feinberg School of Medicine, Northwestern University, Chicago, US
| | - Alan G Soetikno
- Feinberg School of Medicine, Northwestern University, Chicago, US
| | - Scott A Wu
- Feinberg School of Medicine, Northwestern University, Chicago, US
| | - Egon Ozer
- Department of Medicine, Division of Infectious Diseases, Feinberg School of Medicine, Northwestern University, Chicago, US
- Center for Pathogen Genomics and Microbial Evolution, Robert J. Havey, MD Institute for Global Health, Northwestern University, Chicago, US
| | - Sarah B Welch
- Buehler Center for Health Policy and Economics, Robert J. Havey, MD Institute for Global Health, Northwestern University, 420 E. Superior, Chicago, US
- Department of Emergency Medicine, Feinberg School of Medicine, Northwestern University, Chicago, US
| | - Maryann Mason
- Buehler Center for Health Policy and Economics, Robert J. Havey, MD Institute for Global Health, Northwestern University, 420 E. Superior, Chicago, US
- Department of Emergency Medicine, Feinberg School of Medicine, Northwestern University, Chicago, US
| | - Robert Murphy
- Department of Medicine, Division of Infectious Diseases, Feinberg School of Medicine, Northwestern University, Chicago, US
- Robert J. Havey, MD Institute for Global Health, Feinberg School of Medicine, Northwestern University, Chicago, US
| | - Claudia Hawkins
- Department of Medicine, Division of Infectious Diseases, Feinberg School of Medicine, Northwestern University, Chicago, US
- Center for Global Communicable and Emerging Infectious Diseases, Robert J Havey, MD Institute for Global Health, Northwestern University, Chicago, US
| | - Yingxuan Liu
- Buehler Center for Health Policy and Economics, Robert J. Havey, MD Institute for Global Health, Northwestern University, 420 E. Superior, Chicago, US
- Department of Emergency Medicine, Feinberg School of Medicine, Northwestern University, Chicago, US
| | - Charles Moss
- Institute of Food and Agricultural Sciences, University of Florida, Gainesville, US
| | - Robert J Havey
- Robert J. Havey, MD Institute for Global Health, Feinberg School of Medicine, Northwestern University, Chicago, US
- Department of Medicine, General Internal Medicine and Geriatrics, Feinberg School of Medicine, Northwestern University,, Chicago, US
| | - Chad Achenbach
- Department of Medicine, Division of Infectious Diseases, Feinberg School of Medicine, Northwestern University, Chicago, US
- Robert J. Havey, MD Institute for Global Health, Feinberg School of Medicine, Northwestern University, Chicago, US
| | - Lori A Post
- Buehler Center for Health Policy and Economics, Robert J. Havey, MD Institute for Global Health, Northwestern University, 420 E. Superior, Chicago, US
- Department of Emergency Medicine, Feinberg School of Medicine, Northwestern University, Chicago, US
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Ndejjo R, Chen N, Kabwama SN, Bamgboye EA, Bosonkie M, Bassoum O, Kiwanuka SN, Salawu MM, Egbende L, Sougou NM, Afolabi RF, Leye MMM, Bello S, Adebowale AS, Dairo MD, Seck I, Fawole OI, Mapatano MA, Tsai LL, Wanyenze RK. Sex and COVID-19 vaccination uptake and intention in the Democratic Republic of Congo, Nigeria, Senegal, and Uganda. Front Glob Womens Health 2024; 5:1356609. [PMID: 38939751 PMCID: PMC11210425 DOI: 10.3389/fgwh.2024.1356609] [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: 12/15/2023] [Accepted: 05/30/2024] [Indexed: 06/29/2024] Open
Abstract
The introduction of vaccines marked a game changer in the fight against COVID-19. In sub-Saharan Africa, studies have documented the intention to vaccinate and the uptake of COVID-19 vaccines. However, little is documented about how sex differences could have impacted COVID-19 vaccination. We conducted a multi-country cross-sectional study to assess the sex differences in COVID-19 vaccine uptake and intention to vaccinate in the Democratic Republic of Congo (DRC), Nigeria, Senegal, and Uganda. This study involved analysis of data from mobile surveys conducted between March and June 2022 among nationally constituted samples of adults in each country. Bivariate and multivariable logistic regression models were run. The self-reported uptake of COVID-19 vaccines was not significantly different between males and females (p = 0.47), while the intention to vaccinate was significantly higher among males (p = 0.008). Among males, obtaining COVID-19 information from health workers, testing for COVID-19, and having high trust in the Ministry of Health were associated with higher vaccination uptake. Among females, having high trust in the government was associated with higher vaccination uptake. For intention to vaccinate, males who resided in semi-urban areas and females who resided in rural areas had significantly higher vaccination intention compared to their counterparts in urban areas. Other factors positively associated with vaccination intention among males were trust in the World Health Organization and perceived truthfulness of institutions, while males from households with a higher socio-economic index and those who had declined a vaccine before had a lower vaccine intention. Overall, the factors differentiating vaccine uptake and intention to vaccinate among males and females were mostly related to trust in government institutions, perceived truthfulness of institutions, and respondent's residence. These factors are key in guiding the tailoring of interventions to increase COVID-19 vaccine uptake in sub-Saharan Africa and similar contexts.
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Affiliation(s)
- Rawlance Ndejjo
- Department of Disease Control and Environmental Health, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Nuole Chen
- Department of Political Science, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Steven N. Kabwama
- Department of Community Health and Behavioral Sciences, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Eniola A. Bamgboye
- Department of Epidemiology and Medical Statistics, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Marc Bosonkie
- Department of Nutrition, Kinshasa School of Public Health, School of Medicine, Kinshasa, Democratic Republic of Congo
| | - Oumar Bassoum
- Department of Preventive Medicine and Public Health, Faculty of Medicine, Pharmacy and Odontology, Cheikh Anta Diop, University, Dakar, Senegal
| | - Suzanne N. Kiwanuka
- Department of Health Policy, Planning and Management, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Mobolaji M. Salawu
- Department of Epidemiology and Medical Statistics, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Landry Egbende
- Department of Nutrition, Kinshasa School of Public Health, School of Medicine, Kinshasa, Democratic Republic of Congo
| | - Ndeye Mareme Sougou
- Department of Preventive Medicine and Public Health, Faculty of Medicine, Pharmacy and Odontology, Cheikh Anta Diop, University, Dakar, Senegal
| | - Rotimi F. Afolabi
- Department of Epidemiology and Medical Statistics, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Mamadou Makhtar Mbacké Leye
- Department of Preventive Medicine and Public Health, Faculty of Medicine, Pharmacy and Odontology, Cheikh Anta Diop, University, Dakar, Senegal
| | - Segun Bello
- Department of Epidemiology and Medical Statistics, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Ayo S. Adebowale
- Department of Epidemiology and Medical Statistics, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Magbagbeola D. Dairo
- Department of Epidemiology and Medical Statistics, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Ibrahima Seck
- Department of Preventive Medicine and Public Health, Faculty of Medicine, Pharmacy and Odontology, Cheikh Anta Diop, University, Dakar, Senegal
| | - Olufunmilayo I. Fawole
- Department of Epidemiology and Medical Statistics, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Mala Ali Mapatano
- Department of Nutrition, Kinshasa School of Public Health, School of Medicine, Kinshasa, Democratic Republic of Congo
| | - Lily L. Tsai
- Department of Political Science, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Rhoda K. Wanyenze
- Department of Disease Control and Environmental Health, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
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Charles CM, Noles M, Munezero A, Gallardo N, Bahamondes L, Bento SF, de Pádua KS, Nhauche M, Metelus S, Cecatti JG, Souza RT, Pacagnella RC. Risk factors related to the SARS-CoV-2 vaccine additional doses hesitancy among pregnant and non-pregnant people of reproductive age and partners: A Brazilian cross-sectional study. Int J Gynaecol Obstet 2024. [PMID: 38532554 DOI: 10.1002/ijgo.15512] [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: 01/26/2024] [Revised: 03/09/2024] [Accepted: 03/18/2024] [Indexed: 03/28/2024]
Abstract
OBJECTIVE The aim of this study was to assess the predictors of acceptance and hesitancy of additional doses of any SARS-CoV-2 (COVID-19) vaccine among pregnant or recently pregnant and non-pregnant people of reproductive age and partners in Brazil. METHODS We conducted an online cross-sectional study from June 2022 to April 2023 and invited women and partners between 18 and 49 years old to participate. We employed a snowball strategy to reach all potential eligible participants. Our primary outcome was the acceptance rate of the COVID-19 booster vaccine. We estimated the frequency and percentage for the three groups and compared categorical variables using the Chi-square test. Moreover, bivariate, backward stepwise regression, and subgroup analyses were performed to evaluate risk factors and predictors of COVID-19 vaccine booster hesitancy. We reported the effect size as OR with a 95% CI. RESULTS We included 1487 participants, and among them, 334 (22.5%) were pregnant or recently pregnant people, 905 (60.8%) were non-pregnant people, and 247 (16.6%) were male partners. Pregnant and recently pregnant people showed greater hesitancy for the COVID-19 vaccine booster than non-pregnant people (28% vs 15%, P < 0.001) and male partners (28% vs 16%, P < 0.001). Non-pregnant women accepted the COVID-19 vaccine more often than pregnant or recently pregnant people (OR 1.75; 95% CI: 1.13-2.70). The associated factors to the reduced COVID-19 vaccine booster acceptance were family income between US$ 566-945.00 (54%), evangelic religion (65%), concern about vaccine safety (80%) and perceived common vaccine importance (93%). CONCLUSION Pregnant people were more hesitant than non-pregnant people to accept the COVID-19 booster vaccine. Family income, religious beliefs, vaccine safety concerns, and perceived common vaccine importance were significant barriers to accepting COVID-19 booster vaccines. The impact of these factors was more evident among pregnant or recently pregnant people, emphasizing the harmful effect of misinformation among this vulnerable population.
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Affiliation(s)
- Charles M Charles
- Department of Obstetrics and Gynecology, Universidade Estadual de Campinas - (UNICAMP), Campinas, SP, Brazil
- Provincial Health Administration, DPS Manica, Chimoio, Mozambique
| | - Marcelo Noles
- Department of Obstetrics and Gynecology, Universidade Estadual de Campinas - (UNICAMP), Campinas, SP, Brazil
| | - Aline Munezero
- Department of Obstetrics and Gynecology, Universidade Estadual de Campinas - (UNICAMP), Campinas, SP, Brazil
| | - Negli Gallardo
- Department of Obstetrics and Gynecology, Universidade Estadual de Campinas - (UNICAMP), Campinas, SP, Brazil
| | - Luis Bahamondes
- Department of Obstetrics and Gynecology, Universidade Estadual de Campinas - (UNICAMP), Campinas, SP, Brazil
- Campinas Reproductive Health Research Center (CEMICAMP), Campinas, Brazil
| | - Silvana F Bento
- Campinas Reproductive Health Research Center (CEMICAMP), Campinas, Brazil
- Women's Hospital "Prof. Dr. José A Pinotti" - Center for Integral Attention to Women (CAISM), Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Karla S de Pádua
- Campinas Reproductive Health Research Center (CEMICAMP), Campinas, Brazil
- Women's Hospital "Prof. Dr. José A Pinotti" - Center for Integral Attention to Women (CAISM), Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Marta Nhauche
- Department of Obstetrics and Gynecology, Universidade Estadual de Campinas - (UNICAMP), Campinas, SP, Brazil
| | - Sherly Metelus
- Department of Obstetrics and Gynecology, Universidade Estadual de Campinas - (UNICAMP), Campinas, SP, Brazil
| | - José G Cecatti
- Department of Obstetrics and Gynecology, Universidade Estadual de Campinas - (UNICAMP), Campinas, SP, Brazil
- Campinas Reproductive Health Research Center (CEMICAMP), Campinas, Brazil
| | - Renato T Souza
- Department of Obstetrics and Gynecology, Universidade Estadual de Campinas - (UNICAMP), Campinas, SP, Brazil
- Campinas Reproductive Health Research Center (CEMICAMP), Campinas, Brazil
| | - Rodolfo C Pacagnella
- Department of Obstetrics and Gynecology, Universidade Estadual de Campinas - (UNICAMP), Campinas, SP, Brazil
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Ndwandwe D, Ndlovu M, Mayeye A, Luphondo N, Muvhulawa N, Ntamo Y, Dludla PV, Wiysonge CS. Trends in Vaccine Completeness in Children Aged 0-23 Months in Cape Town, South Africa. Vaccines (Basel) 2023; 11:1782. [PMID: 38140186 PMCID: PMC10747087 DOI: 10.3390/vaccines11121782] [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: 10/01/2023] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 12/24/2023] Open
Abstract
BACKGROUND We have previously determined that the occurrence of missed vaccination opportunities in children in Cape Town, South Africa, is shaped by both individual and contextual factors. These factors present valuable openings for enhancing quality and implementing broader strategies to enhance the delivery of routine Immunisation services. METHODS Here, we are further reporting regional-level data on the coverage and factors influencing vaccination completion within a similar study population, based on extensive data analysis from the 2016 South African Demographic and Health Survey. RESULTS AND DISCUSSION The study reveals commendable vaccination coverage for most vaccines within recommended schedules, with high rates of initial vaccinations at birth and during the primary vaccination schedule. However, there are notable areas for improvement, particularly in ensuring complete coverage for the second measles vaccine and the 18-month vaccine. Socio-demographic factors also play a role, with maternal education and caregiver awareness campaigns showing the potential to positively influence vaccination completeness. This study emphasises the importance of timely vaccinations during the early months of life and underscores the need for interventions to maintain coverage as children age. Specific sub-districts, such as Tygerberg, may require targeted efforts to enhance vaccination completeness. Additionally, assessing caregiver knowledge about child vaccination is deemed vital, as it can impact vaccination decisions and adherence. CONCLUSIONS The findings provide valuable insights for public health interventions in Cape Town, aimed at reducing the burden of vaccine-preventable diseases and ensuring the health of the region's youngest population.
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Affiliation(s)
- Duduzile Ndwandwe
- Cochrane South Africa, South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa; (M.N.); (A.M.); (N.L.); (N.M.); (Y.N.); (P.V.D.)
| | - Musawenkosi Ndlovu
- Cochrane South Africa, South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa; (M.N.); (A.M.); (N.L.); (N.M.); (Y.N.); (P.V.D.)
| | - Asanda Mayeye
- Cochrane South Africa, South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa; (M.N.); (A.M.); (N.L.); (N.M.); (Y.N.); (P.V.D.)
| | - Nomahlubi Luphondo
- Cochrane South Africa, South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa; (M.N.); (A.M.); (N.L.); (N.M.); (Y.N.); (P.V.D.)
| | - Ndivhuwo Muvhulawa
- Cochrane South Africa, South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa; (M.N.); (A.M.); (N.L.); (N.M.); (Y.N.); (P.V.D.)
- Department of Biochemistry, North-West University, Mafikeng Campus, Mmabatho 2735, South Africa
| | - Yonela Ntamo
- Cochrane South Africa, South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa; (M.N.); (A.M.); (N.L.); (N.M.); (Y.N.); (P.V.D.)
| | - Phiwayinkosi V. Dludla
- Cochrane South Africa, South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa; (M.N.); (A.M.); (N.L.); (N.M.); (Y.N.); (P.V.D.)
- Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, Empangeni 3886, South Africa
| | - Charles S. Wiysonge
- Vaccine Preventable Diseases Programme, Universal Health Coverage/Communicable and Non-Communicable Diseases Cluster, World Health Organization Regional Office for Africa, Brazzaville P.O. Box 06, Congo;
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