China-produced inactivated COVID-19 absolute vaccine effectiveness (VE) levels against Omicron BA.2 infection, pneumonia or worse, and severe COVID-19 were 17%, 66%, and 91%; boosted VEs were 22%, 74%, and 93%. Inactivated vaccines were highly effective against severe COVID-19 in China’s then infection-naive population.
All Keywords
【저자키워드】 China, vaccine effectiveness, homologous and heterologous booster, inactivated COVID-19 vaccines,
【저자키워드】 China, vaccine effectiveness, homologous and heterologous booster, inactivated COVID-19 vaccines,