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

Nicole Ngai Yung Tsang, Hau Chi So, Benjamin J. Cowling, Dennis Kai Ming Ip

The Lancet Infectious Diseases · 2022 · 75 citations · 39 references

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