China turns first major country to let preschoolers have emergency vaccine

China authorized the emergency use of Sinovac Biotech Ltd.’s coronavirus vaccine for children, becoming the first major country to grant approval for those as young as three.

The move comes amid reports that young people with the disease could be as infectious as adults. Singapore, Hong Kong and some U.S. states have so far authorized the use of Covid-19 vaccines against children 12 years and above.

It’s not yet confirmed when this age group will receive their first doses of the vaccine in China. Phase I and Phase II research, involving several hundred participants, showed that the Sinovac vaccine is