“A well-fitted N95 would be the highest quality filtering mask that you could wear,” she says. But “the best mask you can ...

How is this booster different from other COVID-19 vaccines? The new booster is what’s known as a bivalent vaccine, meaning it offers protection from more than one virus or subtype of a virus. So far ...

XBB.1.5 made up 27.6% of sequenced Covid cases nationally for the week ending Jan. 7 compared to 18.3% for the week end Dec. 31. The World Health Organization has described XBB.1.5 as the most ...

It only took about a month for BA.2.12.1, an Omicron subvariant, to cause most of the new COVID-19 cases in the U.S. since scientists first spotted it in the country. But even newer iterations of the ...

Omicron is mutating in giant leaps, with scientists racing to keep up. Its diversity is challenging vaccine efficacy and complicating treatment. But this fall, broad spectrum bivalent vaccines may ...

The drug regulator has cleared Serum Institute to begin Phase III trials for a 2-in-1 covid-flu vaccine while simultaneously ...

SAN FRANCISCO (KGO) -- Over a month ago, omicron's subvariant BA.2.12.1 became the dominant strain across the country. Fast forward to this week and now the CDC confirmed BA.4 and BA.5 combined are ...

(NEXSTAR) – On Tuesday, the Centers for Disease Control and Prevention added two new subvariants to its online tracker: BA.4 and BA.5. Both are subvariants of the omicron variant of COVID-19, which ...

For more than two years, Cathy Baron and Sara Alicia Costa managed to duck the coronavirus. But despite their being fully vaccinated and boosted, the Omicron variant finally caught them. Baron is an ...