WHO warns against pandemic complacency amid vaccine rollout

Britain approved Pfizer Inc’s Covid-19 vaccine on Wednesday, raising hopes that the tide could soon turn against a virus that has killed nearly 1.5 million people globally, hammered the world economy and upended normal life for billions.

World Health Organization officials on Friday warned governments and citizens not to drop their guard over the Covid pandemic now a vaccination was close, saying healthcare systems could still buckle under pressure.