The poet Marjory Wentworth, who normally moves at roadrunner speed, languished at home last week exhausted and coughing. It felt surreal. She couldn't possibly have COVID-19. The longtime South ...

The delta coronavirus variant surging across the United States appears to cause more severe illness and spread as easily as chickenpox, according to an internal document from the US Centers for ...

Number of Covid hospital admissions in England at highest level for nearly five months; Chile’s Institute of Public Health approves Russia’s Sputnik V jab ...

The World Health Organization and the Centers for Disease Control and Prevention have both designated beta as a “variant of ...