The Centers for Disease Control and Prevention's airport screening program has detected multiple cases of the new COVID-19 variant NB.1.8.1, which has been linked to a large surge of the virus in ...

Internationally, NB.1.8.1 is also growing. By late April 2025, it comprised roughly 10.7 per cent of all submitted sequences — up from just 2.5 per cent four weeks before. While the absolute ...

As the Trump administration moves to limit COVID booster vaccines for some, here's what to know about the latest variant NB.1.8.1 and its symptoms.

NB.1.8.1, a new Omicron subvariant, is under scrutiny as a variant under monitoring (VUM) due to its increasing global presence. While it appears more transmissible, severity hasn't increased.

A new COVID variant - NB 1.8.1 - is creeping across the country; here are the symptoms to watch for, and vaccinations you'll need to take.