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Add Yahoo as a preferred source to see more of our stories on Google. The XFG strain of the virus, nicknamed Stratus, is currently responsible for the majority of Covid cases in the UK - Moment RF ...

COVID-19 variant XFG accounted for 0% of U.S. cases in May. By late-June, it became the third-most common strain.

World Health Organization officials said they are still trying to understand why the delta variant is more transmissible and potentially makes people sicker than the original coronavirus strain.

The latest surge in COVID-19 infections is being ignited by two strains: XFB, Stratus, and NB.1.8.1, referred to as Nimbus. Cases have increased sharply in the northeast in the past many weeks. As per ...

PITTSBURGH, Pa. — Where biology meets technology, researchers are on the hunt for mutations of COVID-19. The Microbial Genome Sequencing Center, also known as MiGS, is one of several in the country ...

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, ...

As the respiratory illness season begins, COVID cases have remained relatively under control in the United States into the beginning of fall. While the United States by and large is experiencing ...

A fourth dose of bivalent or monovalent BA.1-adapted BNT162b2 vaccines was safe and elicited robust neutralizing responses in adults aged 18 to 55 years.

Ripping off the Band-Aid once more, folks: COVID-19 is here to stay, and it's spiking just in time to potentially mess with your Valentine's Day plans. Though the pandemic days may be behind most ...

Questions about the COVID-19 shot abound as federal recommendations shift and medical groups issue clashing guidance.