Effectiveness of a Third Dose of COVID-19 mRNA Vaccine During the Omicron BA.1- and BA.2-Predominant Periods in Japan: The VENUS Study.

Wataru Mimura Chieko IshiguroMegumi MaedaFumiko MurataHaruhisa Fukuda

Published in: Open forum infectious diseases (2022)

A third dose was moderately effective against BA.1 and BA.2 sublineages, but its effectiveness decreased by approximately 10% age points from 2-3 weeks to ≥10 weeks after the third vaccination.

Keyphrases

randomized controlled trial
systematic review
coronavirus disease
sars cov
gestational age
respiratory syndrome coronavirus