World leaders challenge health experts to mix up COVID-19 vaccines as fears over Delta variant grow
[ad_1] BARCELONA – German Chancellor Angela Merkel has done it. Just like the Prime Minister of Canada Justin Trudeau and the Italian Prime Minister Mario Draghi. They have resisted advice from health agencies and mixed up their COVID-19 vaccines after doubts about the effectiveness of the AstraZeneca version against the Delta variant began to circulate. … Read more