Vaccination against COVID‑19

Abstract

The rapid development and deployment of vaccines was an important contributor to pandemic management. The deployment of COVID‑19 vaccines in situations of severe vaccine shortages required countries to prioritise their vulnerable populations. Alongside ensuring sufficient vaccine supply, other challenges included a shortage of equipment and staffing, logistics, managing several different vaccines, and the spread of mis- and disinformation. Adjustments were required, which included changes in eligible age according to the type of vaccination, the time interval between doses, recommendations for those infected previously with SARS‑CoV‑2, and new variants of concern. Countries adopted varying prioritisation strategies, depending on the main objective of their vaccination programmes. The elderly, health care workers and adults with co-morbidities were prioritised most commonly (ECDC, 2020[1]).

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