The U.S. approved a new COVID-19 vaccine made by Moderna late Friday but with limits on who can use it — not a replacement for the company's existing shot, but a second option. The new vaccine, ...

It may be spring, but virus season isn’t over yet. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content. Flu and Covid, including a new variant called BA ...

While the latest variant, called Cicada, carries more mutations, it’s still part of the Omicron family that emerged in 2021.

COVID-19 variant BA.3.2 or "cicada" is not widely circulating in the U.S. yet, but based on trends in Europe, it may become more prominent. Most evidence comes from laboratory data, but there are no ...

The XFG variant of the severe acute respiratory syndrome coronavirus 2 as continued to spread as the U.S. heads into peak Summer travel season. (Photo by I RYU/VCG via Getty Images) There’s another ...

A highly mutated COVID-19 strain is circulating in California — raising concerns that disease activity could rise heading into the summer. The emergence of the BA.3.2 strain, nicknamed "cicada," comes ...

New FDA approval language for COVID-19 vaccines is sowing confusion about which conditions put people at greater risk for severe disease and who can avoid the inconvenience and cost of off-label ...