A new Covid-19 variant called NB.1.8.1, or Nimbus, represents about a third of new US Covid-19 cases. Dr. Leana Wen answers ...

A painful sore throat, often referred to as "razor blade throat", is just one of the symptoms of a new COVID-19 variant. This ...

A painful new symptom is drawing attention from doctors as another COVID-19 variant begins to spread across the US. The sore ...

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

The Covid-19 variant ‘Nimbus’, which causes a ‘razor blade’ throat symptom, is under monitoring and currently poses a low ...

While COVID-19 transmission remains low in the US, health experts are anxious about the potential for a big summer wave as ...

In the UK, the NHS advises that Covid vaccinations are currently unavailable to the public until the early winter roll out, ...

A new COVID-19 strain has been reported in dozens of countries, including the U.S. Here's what you should know about it.

The variant, NB.1.8.1, has been identified as the cause of Covid-19 resurgence in China and several other Asian countries. Experts in Europe are predicting a possible increase in cases there.