NB.1.8.1 is one of the latest variants of COVID-19, a "slightly upgraded version" of the LP.8.1 variant that is prominent ...

The new COVID-19 variants NB.1.8.1 and XFG are rapidly spreading and competing for dominance across the globe., Health News - Times Now ...

Health experts explain the difference in symptoms as pollen levels increase and the new Covid NB.1.8.1 variant surges in UK ...

COVID appears to be on the rise as a new, highly contagious subvariant — featuring “razor blade throat” symptoms overseas — ...

A new COVID-19 strain has been reported in dozens of countries, including the U.S. Here's what you should know about it.