Tsang NNY, So HC, Cowling BJ, Leung GM, et al. Effectiveness of BNT162b2 and CoronaVac COVID-19 vaccination against asymptomatic and symptomatic infection of SARS-CoV-2 omicron BA.2 in Hong Kong: a prospective cohort study. Lancet Infect Dis 2022 Dec 12:S1473-3099(22)00732.
PMID: 36521506