Delta variant is now in 135 countries, says WHO, as its head calls for moratorium on boosters to allow poorer countries get first doses
August 04, 2021 at 11:19 AM EDT
The highly transmissible delta variant of the coronavirus that causes COVID-19 is now in 135 countries, the World Health Organization said Wednesday, as its head called for a moratorium on booster shots of vaccines to ensure poorer countries can get access to first doses.
