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

The new variant of Covid, NB.1.8.1, which has lost its potential to cause severe infection, since May 2023 is considered a ...

according to Delaware Health and Human Services — even as a new variant, COVID NB 1.8.1, sweeps through much of the country. And with only 14.9% of Delawareans vaccinated with an updated dose ...

A new COVID variant known as NB.1.8.1 is on the rise in the U.S. and beyond, landing on the radar of health officials. The variant, first identified in January 2025, is now being closely ...

While COVID-19 transmission remains low in the US, health experts are anxious about the potential for a big summer wave as ...