COVID-19 pandemic

Sinovac Biotech's CoronaVac appears to be safe in providing protection against COVID-19, as preliminary results of Phase III clinical trial in Brazil show. São Paulo's Instituto Butantan, one of Brazil's leading biomedical research centres carrying out the trials, says CoronaVac proved to be safe after its two doses were applied to 9,000 volunteers, but said data on how effective it is in protecting people against COVID-19 will not be released until it has been tested on all 15,000 volunteers in newly expanded trials.

Sources:  South China Morning Post