The NB.1.8.1 COVID-19 variant was linked to a large surge of hospitalizations in parts of Asia earlier this year.

Key Takeaways NB.1.8.1 may make up over one-third of current U.S. COVID-19 casesThe variant is spreading fast, but doesn’t ...

A highly transmissible new COVID-19 variant called NB.1.8.1, aka "Nimbus," is spreading in the United States, CDC data show.

A new COVID variant - NB 1.8.1 - is in New Jersey. Parents can take steps to protect their children from COVID this summer.

Learn about the new COVID variant, NB.1.8.1, and find out what health officials are saying about its spread this summer.

In other developments, the ECDC today reported a slow rise in COVID activity in the Europe, which may partly reflect waning ...

NB.1.8.1 — a new COVID-19 variant tied to a surge in China — now accounts for around 37% of cases in the U.S., according to variant proportion estimates from the CDC. Four notes: ...

Health officials are tracking a new COVID-19 variant. This comes as confusion grows over vaccine recommendations moving ...

Just when many Americans were starting to feel a sense of normalcy, a new COVID-19 variant, dubbed "Nimbus," has emerged, ...

Health officials are tracking a highly contagious new COVID-19 variant. This comes as confusion grows over vaccine ...

A new Covid-19 subvariant, NB.1.8.1, has gained attention following a rise in cases reported by WHO since mid-February 2025.

If you have any COVID symptoms, such as sore throat, fatigue, cough or fever, take a test to see if you have COVID. If you are infected, get in touch with your doctor, particularly if you’re high-risk ...