Add Yahoo as a preferred source to see more of our stories on Google. A new COVID-19 strain, referred to as NB.1.8.1 or "Nimbus," first appeared in the U.S. sometime near the end of April and is ...

What you need to know about its symptoms, spread, and whether your vaccine is still effective. A fast-spreading new COVID variant known as NB.1.8.1 has been detected in the U.S. Experts say it’s too ...

A highly transmissible new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States. The mutated omicron subvariant, which is known for causing a painful symptom dubbed ...

As the weather cools and fall approaches, COVID-19 cases are still spiking in much of the United States. The country has yet to emerge from a late summer COVID wave driven by the highly contagious new ...

COVID-19 variant XFG is spreading across the U.S., becoming the third most common strain. XFG is a combination of variants F.7 and LP.8.1.2 and may be less contagious than other dominant variants.

There is a new COVID-19 variant gaining attention worldwide. The latest iteration of the coronavirus, called NB.1.8.1, is driving cases in several countries. The variant has been detected in the U.S.

A new COVID-19 variant is spreading fast in the United States, becoming the third-most common strain of the summer. Health data indicates a potential disconnect in Mississippi between the number of ...

The symptoms of Covid have largely remained the same, despite the different variants. However, many patients with the new ...