Sharp throat pain that feels like swallowing razor blades—this symptom is particularly noticeable in infections with the new ...

Stabbing throat pain that feels like swallowing razor blades is a particularly noticeable symptom of infections with the new ...

In patients with COVID-19, preexisting immunity and Omicron infection were associated with reduced disease severity and upper respiratory symptom presentation.

Covid has largely dropped out of the headlines, but the virus that causes it is still circulating. We ask what we should know about a new variant of SARS-CoV-2, the state of the Covid pandemic in 2025 ...

COVID-19 has largely dropped out of the headlines, but the virus that causes it is still circulating. We ask what we should know about a new variant of SARS-CoV-2, the state of the COVID-19 pandemic ...

The virus killed at least 20 million people, wiped at least $10 trillion from the global economy and upended billions of ...

A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to know about symptoms and vaccines.

Cases of the recently identified Covid-19 variant NB 1.8.1. are rising. Some have dubbed the variant "razor blade throat" for ...

Two new Omicron subvariants are gaining ground in the U.S. as some people report experiencing respiratory symptoms like ...

A new Omicron subvariant has caused infections and deaths in South and Southeast Asia. Europe may see a spike after ...

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 ...