COVID-19 variant is quietly making its rounds across the United States, prompting health officials to reiterate the ...

Variant NB.1.8.1 accounted for 0% of U.S. cases in April. By mid-June, it was estimated to be the cause of around 37% of ...

The new COVID-19 variant NB.1.8.1, or 'Nimbus', causes unusual symptoms like razor blade throat, long-lasting congestion, odd ...

The new COVID-19 variant NB.1.8.1, known as Nimbus, is causing concern due to its subtle symptoms and high transmission rate.

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

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

Nimbus (NB.1.8.1) is a descendant of the Omicron variant, and was first detected in January 2025. Since then, it has spread ...

Also known as "Nimbus," the new COVID variant NB.1.8.1 is characterized by its extremely painful sore throat, described as ...

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 ...

The incubation period of SARS-CoV-2 — the virus that causes COVID-19 — varies from person to person. Once it replicates in your cells and reaches higher numbers, you may feel symptoms.

Key symptoms can help tell apart a Covid infection from hay fever, despite some similarities in how they present. This year, ...

Patients and doctors say the latest COVID-19 variant spreading in the U.S. in some cases causes a sore throat so painful it ...