1. Measles Vaccine Coverage and Disease Outbreaks: A Systematic Review of the Early Impact of COVID-19 in Low and Lower-Middle Income Countries.
- Author
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Packham A, Taylor AE, Karangwa MP, Sherry E, Muvunyi C, and Green CA
- Subjects
- Humans, COVID-19 prevention & control, COVID-19 epidemiology, Developing Countries, Disease Outbreaks, Measles epidemiology, Measles prevention & control, Measles Vaccine administration & dosage, SARS-CoV-2, Vaccination Coverage statistics & numerical data
- Abstract
Objectives: We aimed to evaluate changes to measles-containing vaccine (MCV) provision and subsequent measles disease cases in low- and lower-middle income countries (LICs, LMICs) in relation to the COVID-19 pandemic. Methods: A systematic search was conducted of MEDLINE, OVID EMBASE and PubMed records. Primary quantitative and qualitative research studies published from January 2020 were included if they reported on COVID-19 impact on MCV provision and/or measles outbreak rates within LICs and LMICs. Results: 45 studies were included. The change in MCV1 vaccination coverage in national and international regions ranged -13% to +44.4% from pre-COVID time periods. In local regions, the median MCV1 and overall EPI rate changed by -23.3% and -28.5% respectively. Median MCV2 rate was disproportionally impacted in local areas during COVID-interruption time-periods (-48.2%) with ongoing disruption in early-recovery time-periods (-17.7%). 8.9% of studies reported on vaccination status of confirmed measles cases; from these, 71%-91% had received no MCV dose. Conclusion: MCV vaccination coverage experienced ongoing disruption during the recovery periods after initial COVID-19 disruption. Vaccination in local area datasets notably experienced longer-term disruption compared to nationally reported figures., Competing Interests: The authors declare that they do not have any conflicts of interest., (Copyright © 2024 Packham, Taylor, Karangwa, Sherry, Muvunyi and Green.)
- Published
- 2024
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