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 ...

The delta coronavirus variant surging across the United States appears to cause more severe illness and spread as easily as chickenpox, according to an internal document from the US Centers for ...

The new COVID variant is called XFG and is known as “Straus.” According to the CDC, the XFG variant made up around 78% of ...

SAN FRANCISCO -- Preliminary data out of South Africa is giving the world insight into how strong omicron really is. The South African Medical Research Council just reported this variant may cause ...

U.S. health officials are on high alert and looking for any cases of the new omicron variant. Questions are also being raised if this new variant will overtake delta. Dr. Otto Yang, a leading ...

If you're a parent, you've likely received school alerts or emails saying there's been a COVID-positive case in your child's class. It's becoming a more common occurrence. "Now that school is back in ...

"The rules have changed. We have a different epidemic now that we did in May." Adding more insight into the CDC’s updated mask guidance, newly published details of the Provincetown outbreak raise ...

The XFG variant, also known as Stratus, is now the predominant COVID-19 strain in the U.S. after spreading to 38 countries, according to WHO and CDC data.

"It's the biggest experiment that's ever happened." In a stunningly short period of time, the delta variant has changed the course of the COVID-19 pandemic by evolving to become more transmissible ...