Alice Packham, Alice E. Taylor, Marie-Paule Karangwa, Emma Sherry, Claude Muvunyi, Christopher A. Green
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Measles Vaccine Coverage and Disease Outbreaks: A Systematic Review of the Early Impact of COVID-19 in Low and Lower-Middle Income Countries
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.
期刊介绍:
The International Journal of Public Health publishes scientific articles relevant to global public health, from different countries and cultures, and assembles them into issues that raise awareness and understanding of public health problems and solutions. The Journal welcomes submissions of original research, critical and relevant reviews, methodological papers and manuscripts that emphasize theoretical content. IJPH sometimes publishes commentaries and opinions. Special issues highlight key areas of current research. The Editorial Board''s mission is to provide a thoughtful forum for contemporary issues and challenges in global public health research and practice.