Sinovac Biotech said last week it was studying how its vaccine holds up against Omicron but gave no timeline for releasing results.. Read more at straitstimes.com.
China must relook approach for zero Covid-19 cases as Delta variant spreads straitstimes.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from straitstimes.com Daily Mail and Mail on Sunday newspapers.