ArticleThe Pan African medical journal2021
Adverse events following immunization reporting and impact on immunization services in informal settlements in Nairobi, Kenya: a prospective mixed-methods study.
Article in The Pan African medical journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 14 citations in OpenAlex.
- Knowledge and Perception of Caregivers Regarding Adverse Events Following Immunization and Associated Predictors at Hospitals in Osogbo, Southwestern Nigeria: A Cross-Sectional Study.Health science reports · 2026Article
- Measles challenges: global resurgence and factors affecting eradication.Italian journal of pediatrics · 2026Review
- Safety monitoring of the RTS,S/AS01Malaria journal · 2026Review
- Strengthened HPV vaccination among adolescents living with HIV, - Findings of a Pilot QI project in Kampala Metropolitan, Uganda.PloS one · 2026Article
- Uptake of malaria vaccine (RTS,S/AS01) among children aged 6-24 months: A cross-sectional survey conducted in the Western region of Cameroon, 1 year following the vaccine introduction.PLOS global public health · 2026Article
- Adverse Events Following Immunization: Mechanisms, Clinical Manifestations, Surveillance, and Public Health Management-A Narrative Review.Infection and drug resistance · 2026Review
- Medical Error Reporting among healthcare workers in a Kenyan tertiary level hospital: a knowledge, attitude, and practice study.BMC health services research · 2025Article
- Prioritizing interventions to address healthcare worker barriers to reporting adverse events following immunization in Ghana.Vaccine · 2025Article
- Safety profile of Japanese encephalitis vaccines: a comprehensive analysis of vaccine adverse event reports from 1993 to 2025.Frontiers in public health · 2025Article
- Article
- RTS,S/AS01Malaria journal · 2023Article
- Monitoring of Adverse Events in Recipients of the 2-Dose Ebola Vaccine Regimen of Ad26.ZEBOV Followed by MVA-BN-Filo in the UMURINZI Ebola Vaccination Campaign.The Journal of infectious diseases · 2023Article
- Barriers to optimal AEFI surveillance and documentation in Nigeria: Findings from a qualitative survey.PLOS global public health · 2023Article
Corrections and comments
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Authors and funding
10 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionadverse events following immunization (AEFIs) are thought to contribute to cases of vaccine hesitancy, yet little data exists describing the state of reporting and management of AEFIs. This study investigated the occurrence and influence of AEFIs on vaccine hesitancy in an informal settlement of Nairobi.
methodsthis was a prospective mixed-methods study involving 7 focus group discussions, 8 key informant interviews and 457 face-to-face interviews with caregivers. Caregivers were recruited at/or before the 6 week clinic visit and assessed for occurrence of AEFIs in their children at the subsequent 10- and 14-week visits and a follow-up two weeks following the 14 weeks visit via phone calls.
resultsin this study, 12.3% (56/457) of the infants experienced an AEFI. Of these, 19 did not report for the next scheduled vaccine. Fever was the most common AEFI, for which most caregivers (66.7%) used Paracetamol as antipyretic, while 20.8% sought help from a nearby health facility. Three of the 56 AEFIs (convulsions) that occurred in study participants could be classified as severe reactions. Diphtheria, pertussis and tetanus (DPT 3) completion rate was 75.3%. Most (96.4%) caregivers considered immunization an important strategy for child survival. Vaccine hesitancy occurred among 3.6% of participants, 30% of whom attributed their hesitancy to occurrence of AEFIs. The review of health records revealed that no AEFI had been reported from any of the study facilities.
conclusioncases of adverse events following immunization are not reported in Mathare Valley and they do have implications for vaccine hesitancy by some caregivers.
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