Future Covid variants to be more contagious, warns WHO
According to Dr Mike Ryan, WHO's director of emergency programmes, the virus will continue to evolve before it settles into a pattern.
Jan 27, 2022, 13:55 PM IST
According to Dr Mike Ryan, WHO's director of emergency programmes, the virus will continue to evolve before it settles into a pattern.
Jan 27, 2022, 13:55 PM IST