The new omicron variant took only a few weeks to live up to dire predictions about how hugely contagious it is. But scientists don’t yet know if it causes more
EXPLAINER: Boosters key to fight omicron, lot still to learn klkntv.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from klkntv.com Daily Mail and Mail on Sunday newspapers.