Abstract
In KwaZulu-Natal (KZN), South Africa, COVID-19 vaccinations commenced in May 2021. This study investigated the extent and reasons for COVID-19 vaccine (C19V) wastage in KZN and strategies undertaken to mitigate loss. This two-phase multicenter study was conducted at private and public healthcare facilities from May 2021 to July 2022. KZN reported 2% Pfizer and 1% Janssen C19V wasted, mainly due to expiry. C19V waste-minimization strategies reported by 100% public and private sector vaccination leads included cold chain monitoring, designated trained staff and the use of stock-management systems. The WHO's risk-mitigation factors should be implemented continuously to minimize vaccine wastage.
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