The latest Omicron subvariant, XBB.1.5, is the most transmissible strain of COVID yet — but does not seem to make people sicker, the World Health Organization has said. XBB.1.5 has spread quickly ...

BA.5, part of the Omicron family, is the latest coronavirus variant to cause widespread waves of infection globally. According to the World Health Organization's most recent report, it was behind 52% ...

This week, the FDA and CDC authorized Pfizer and Moderna to start administering vaccine boosters that have been reengineered to specifically target the Omicron BA.4 and BA.5 variants that caused this ...

(NEXSTAR) – The omicron variant of COVID-19 has once again evolved, spawning new versions of itself with slight mutations that could make the virus more transmissible or more dangerous. With each new ...

Caitlin O'Kane is a New York City journalist who works on the CBS News social media team as a senior manager of content and production. She writes about a variety of topics and produces "The Uplift," ...

An omicron subvariant is once again demonstrating immune-dodging abilities, posing a threat to both vaccinated and previously infected individuals. A report published Wednesday in the New England ...

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 ...

Wearing face masks may not have lowered the risk of COVID infection after the first Omicron wave, new research has shown. But that does not mean that face masks aren't useful, regardless. The wearing ...

Two subvariants that have emerged from the soup of Omicron offspring are among the most adept at evading immunity. They appear poised to become dominant in the U.S. and could fuel a new surge.