The world’s major manufacturers of Covid-19 vaccines said Friday that they are working to quickly investigate and adapt their shots to a new and highly mutated strain of the virus. The World Health Organization on Friday said the new strain, named omicron, is a “variant of concern” that may pose a higher risk of reinfection […]
The U.S. is tracking several coronavirus omicron subvariants that more easily evade immunity, but the new booster shots should protect against them, a top health official said on Tuesday. Health officials are closely watching the subvariants because they render many treatments ineffective, said Dr. Ashish Jha, head of the White House Covid task force. But […]
Dr. Ulrika Wigert, a family practice physician, checks on Brittany Kolkhorst, a patient who has just been admitted into the hospital with Covid-19, at CentraCare Sauk Centre Hospital in Sauk Centre, Minn., on Tuesday, Nov. 23, 2021. Jenn Ackerman | The Washington Post | Getty Images When the first wave of Covid infections hit the […]
