Course: Association of Homologous and Heterologous Vaccine Boosters With COVID-19 Incidence and Severity in Singapore
CME Credits: 1.00
Released: 2022-02-11
Reports of waning antibody levels and breakthrough infections among vaccinated individuals have prompted the recommendation for vaccine boosters to prevent SARS-CoV-2 infections. Despite more than 80% of the population in Singapore having received 2 doses of a COVID-19 vaccine, cases surged in September 2021 with the relaxation of social distancing and quarantine measures. In response, adults aged 60 years and older who completed their primary vaccination series at least 6 months prior were invited to receive a booster injection and given a choice of either 30-?g BNT162b2 (Pfizer-BioNTech) or 50-?g mRNA-1273 (Moderna). We estimated SARS-CoV-2 infections and disease severity with the receipt of a booster and by type of booster.
Educational Objective
To identify the key insights or developments described in this article
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