A fast-moving COVID-19 strain is sweeping the country with a striking calling card: “razor blade throat,” a sharp, searing ...

If you feel unwell with a bad throat and a temperature you may well have caught one of the new strains of Covid circulating ...

The XFG COVID-19 variant, aka "Stratus," is spreading rapidly in the U.S. as cases climb. Here's what to know about symptoms ...

It's been less than a month since health officials reported the first known case of a new and more contagious coronavirus variant in Texas. The man, a Harris County resident, had no travel history.

She continued: "The main symptoms of Covid-19 are a high temperature, a new, continuous cough and loss or change to your ...

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 ...

A sore throat that feels like swallowing glass—a.k.a. “razor-blade throat”—has become one of the most talked-about of the new ...

As evidence mounts that the omicron variant is less deadly than prior COVID-19 strains, one oft-cited explanation is that viruses always evolve to become less virulent over time. The problem, experts ...

Public health experts have issued urgent advice to Brits as cases of new Covid strain infections reportedly rise. Yep, over ...

Evolutionary map of viral proteins used to design vaccine that provides broad immunity — plus, reviewing 25 years of carbon offsetting.