A hybrid COVID variant known as XE has sparked headlines over the past week, but experts have warned people not to get unduly concerned—and the variant isn't even particularly new. XE is known as a ...

There’s a new Covid variant in town. The strain, known as XEC, is gaining a foothold in the United States, accounting for an estimated 5.7% of new cases in the past two weeks, the Centers for Disease ...

Anthony Fauci said Wednesday he thinks the definition of being fully vaccinated will eventually change to include a booster, especially as new evidence is emerging that a booster dose offers the best ...

Over the nearly five years since COVID first emerged, you’d be forgiven if you’ve lost track of the number of new variants we’ve seen. Some have had a bigger impact than others, but virologists have ...

The UK is well on its way to having a new dominant variant, fuelling concerns that a fresh Covid wave could be just around the corner. The new variant, known as XFG – or Stratus – saw its share of ...

While scientists and experts are still working to find answers to many unanswered questions surrounding the new omicron COVID variant, some doctors in South Africa who have treated cases said the ...