Andreas Hasman, Annette Imohe, Julia Krasevec, Grainne Moloney, Victor M Aguayo
Summary box
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Service disruptions caused significant declines in coverage of vitamin A supplementation in 2020.
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The largest declines were in the first half of the year, following widespread suspension of mass campaigns.
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Countries with the highest child mortality, and therefore the greatest need for supplementation, had the lowest coverage in 2020, reversing the situation in 2019.
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In the context of COVID-19, vitamin A supplementation delivery through routine systems was more resilient than delivery in campaigns.
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To regain lost coverage and move towards universal coverage, countries must strengthen delivery systems with a renewed impetus to reach children most at risk.