If you or a loved one has been feeling rotten, it's worth double checking the signs and symptoms of these new strains, or ...

Officially called XFG, the new variant is part of the Omicron family, the Public Health Agency of Canada says.

WASHINGTON -- Many of the world's richest countries have spent the past year hoarding coronavirus vaccines, buying up enough doses to vaccinate their populations several times over and consistently ...

Learn more about the new COVID-19 variants Nimbus and Stratus, and certain symptoms like a stabbing sore throat that come ...

A new strain of Covid, with an apparently telltale symptom, has reached the UK, and already accounts for a high proportion of ...

NEW YORK -- This holiday season held promise for Americans, many of whom spent Christmas 2020 in quarantine or away from loved ones due to a nasty winter COVID-19 surge. Yet in the last week or so, ...

Even as the omicron COVID-19 variant continues to sweep the globe, scientists are now monitoring a new mutation of omicron, dubbed BA.2. The World Health Organization maintains that BA.2 is not a ...

NEWARK, Calif. (KGO) -- The race is underway to produce and use the omicron variant's DNA to determine how well existing vaccines work against it, ahead of the first case surfacing in the U.S. The Bay ...

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 ...

PHILADELPHIA (WPVI) -- A Philadelphia resident has tested positive for the COVID-19 Omicron variant, the city's health department announced Friday. That person is a man in his 30s from Northwest ...

The race is on for new treatments that stand up to omicron's explosive spread. With omicron's explosive spread threatening to outpace current COVID-19 treatments, the race is on to find new options ...