Differing strains of the coronavirus continue to appear around the world and a new COVID-19 variant, the so-called "Delta" variant, has health experts concerned. The variant, otherwise known as B.1617 ...

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 ...

LOS ANGELES (KABC) -- While overall COVID-19 rates remain relatively low in Southern California amid continuing vaccination efforts, officials are increasingly worried about a growing threat from the ...

The Centers for Disease Control and Prevention listed the COVID-19 delta variant as one of its "variants of concern" (VOCs) on June 15. According to the CDC, VOCs can be more contagious, more ...

Add Yahoo as a preferred source to see more of our stories on Google. A new COVID variant known as NB.1.8.1 has made landfall in the United States. As of late May, the variant, which was first ...

North Carolina's summertime COVID-19 spike is putting the state back in a troublesome spot: back above 1,000 daily cases; the Delta variant spreading fast; and still way too many unvaccinated people.

LAS VEGAS, NEVADA -- A California couple says they were fully vaccinated, but still contracted COVID-19 while on vacation as experts say breakthrough cases are possible, especially with the delta ...

While the variant has yet to account for a significant number of cases in the United States, it has been reported in more ...