COVID-19 cases are rising again in the United States, and the "stratus" variant might be to blame. The big picture: A summer ...

Variant XFG, colloquially known as "Stratus," was first detected in Southeast Asia in January but accounted for less than ...

BioNTech has agreed to pay UK drugmaker GSK royalties on its Covid-19 and influenza vaccines as part of a patent settlement with CureVac, in a deal that allows the biotech to move forward with the ...

A trove of unpublished documents shows the information given to government as it made radical decisions affecting people’s ...

Dr David Nabarro, the World Health Organization's special envoy for Covid-19 since the early stages of the outbreak in 2020, ...