A man works in the packaging facility of Chinese vaccine maker Sinovac Biotech, developing an experimental Covid-19 vaccine, during a government-organised media tour in Beijing, China. Reuters
A man works in the packaging facility of Chinese vaccine maker Sinovac Biotech, developing an experimental Covid-19 vaccine, during a government-organised media tour in Beijing, China. Reuters

Trials show encouraging results for China's Sinovac Covid-19 vaccine