A new COVID-19 variant spreading across the United States may cause an extremely painful sore throat—dubbed the "razor throat ...

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

Vaccine makers will have to run large new trials before updated shots can be approved for everyone who is not at a higher-than-average risk.

New COVID variant NB.1.8.1, or Nimbus, is spreading rapidly in the US, accounting for over one-third of cases.

Health authorities and clinicians across China are warning of a significant surge in COVID‑19 infections this July, driven by the NB.1.8.1 variant—a descendant of the JN.1 lineage that now dominates ...

A new SARS-CoV-2 variant, NB.1.8.1, may now account for more than one-third of all COVID-19 cases in the US, health officials say.

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

The new COVID-19 variant NB.1.8.1, nicknamed ‘Nimbus,’ now accounts for 37% of U.S. cases. It spreads fast, causes severe sore throat, and may evade immunity due to spike mutations.

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: ...

COVID-19 appears to be on the rise in some parts of California as a new, highly contagious subvariant — featuring 'razor ...

The Trump administration's cancellation of $766 million in contracts to develop mRNA vaccines against potential pandemic flu ...