According to a Lancet study, China's CoronaVac vaccine was tested in children and adolescents aged 3–17 years and found to be "well-tolerated and safe". The study said CoronaVac was immunogenic in healthy children and adolescents aged 3–17 years.

China's CoronaVac vaccine 'well tolerated and safe' for children and adolescents: Lancet

China has authorised the emergency use of CoronaVac COVID-19 vaccine manufactured by Chinese firm Sinovac, for children aged between 3 and 17 years.

China authorises CoronaVac vaccine for children above 3 years

China's Coronavac vaccine was 67 per cent effective at preventing symptomatic Covid-19 and 80 per cent at preventing death, according to real-life results unveiled on Friday from Chile's inoculation campaign.

China's Coronavac 80% effective at preventing Covid deaths: Chile results 

Clinical trials of the CoronaVac coronavirus vaccine developed by Chinese laboratory Sinovac have "reached the efficacy threshold" demanded by the World Health Organization, the Brazilian institute charged with its production and distribution said on Wednesday.

Chinese CoronaVac vaccine 'reached efficacy threshold': Brazilian institute