A new Covid strain, Stratus, is spreading rapidly across the UK, marked by a unique hoarse voice symptom, but vaccines remain effective and severity appears unchanged.

A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to know about symptoms and vaccines.

The World Health Organization has added the variant, known formally as XFG, to its monitoring list. A dry, irritated throat ...

The variant, called Nimbus, shares typical COVID-19 symptoms like fever and cough, but some patients have reported severely ...

It likely jumped from animals to humans, the experts said in their final report Friday. However, a critical component of the investigation was missing: Despite repeated requests, the group was not ...

Experts said that COVID-19 vaccines are expected to be effective against this variant known as "nimbus." Here's what to know about it.

Learn about the new COVID-19 variant NB.1.8.1, its spread, symptoms, and how to protect yourself from infection and severe ...

A new COVID-19 variant named "Nimbus" has been detected in the U.S. and is spreading rapidly. Here's what to know about ...

The new Nimbus COVID‑19 variant is on the rise and is known for its startling sore‑throat symptom dubbed “razor blade throat.

A new COVID-19 variant is spreading rapidly through the U.S. What to know about NB.1.8.1 and its symptoms in Tennessee.

A new COVID-19 variant is spreading across the United States, but experts warn that this variant has a new painful symptom.

A new COVID variant called "Nimbus" is spreading. Here's what you need to know about the incubation period, symptoms ...