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 currently the dominant variant in the U.S. The new variant is said to ...

Nimbus has quickly established itself as the leading strain of SARS-CoV-2 in the US, accounting for an estimated 43 percent of Covid-19 infections as of June 2025, according to the Centres for ...

Nimbus, or NB.1.8.1, is a new variant of SARS-CoV-2, the virus responsible for COVID-19. Like its predecessors, it carries a unique set of mutations that differentiate it from previous strains.

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 currently the dominant variant in the U.S. The new variant is said to ...

Patients are reporting a "razor blade throat" symptom — potentially due to the new "Nimbus" COVID variant — in which their throat feels as if they've swallowed shards of glass.

The COVID-19 Nimbus variant is on the rise in the U.S. as many report a painful symptom known as "razor blade throat." If you have a severe sore throat, it's important to rule out strep throat to ...

Nimbus COVID 'razor blade throat' reportedly like swallowing glass. What to know By Peter Warren, Evan MacDonald, Staff writer Updated June 18, 2025 2:01 p.m.

What are the symptoms of Nimbus? Reported symptoms of NB.1.8.1 are similar to other COVID-19 strains, but one distinctive complaint is a severe sore throat, sometimes described as “razor-blade ...