The war has changed: CDC calls for new response to Delta Covid-19 variant

The US Centers for Disease Control has said the war against Covid-19 has changed because of the Delta variant, which was recently found to be as contagious as chickenpox.

The war against Covid-19 has changed because of the highly contagious Delta variant, the US Centers for Disease Control said, proposing a clearer message, mandatory vaccines for health workers and a return to universal masking. An internal CDC document said the variant, first detected in India and now dominant across the globe, is as contagious as chickenpox and far more contagious than the common cold or flu. It can be passed on even by vaccinated people, and may cause more serious disease than earlier coronavirus strains.