The UK's Chief Medical Officer Professor Chris Whitty explained the government's decision to introduce Plan B in England. (PA Images) Boris Johnson this week confirmed the country's move to Plan B to ...

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Under experimental conditions, the Omicron variant of the coronavirus survives at least twice as long on surfaces like plastic, paper and skin than the original strain that emerged from Wuhan, China, ...

SAN FRANCISCO -- There's a new "subvariant" of the omicron variant that's been spreading across Europe and the U.S. Preliminary data shows it's more contagious than omicron. Scientist have named it BA ...

Vaccination protects against severe COVID-19 but not against infection. Researchers at Karolinska Institutet and Danderyd Hospital now show that protection against infection with the new omicron ...

The virus is gradually resurfacing in Asia, particularly in Singapore and Hong Kong, which have seen a surge in cases. In Mumbai, two COVID-related deaths were reported last week, both involving ...

People with immune-mediated inflammatory diseases who are taking immunosuppressants don't mount as strong of an immune defense against the Omicron variant as they did against the original SARS-CoV-2 ...

EVANSVILLE, Ind. — With the omicron variant making landfall in the United States, COVID-19 cases in Vanderburgh County more than doubling in the past month and local positivity rates worse than they ...