Newsday - Covid-19: Could African variants lead to vaccine resistance? - ÃÛÑ¿´«Ã½ Sounds

Newsday - Covid-19: Could African variants lead to vaccine resistance? - ÃÛÑ¿´«Ã½ Sounds

Newsday

Covid-19: Could African variants lead to vaccine resistance?

Latest outbreaks are driven by Delta variant, which originated in India and spread quickly

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