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

From a persistent sore throat that feels like razor blades to severe muscle aches, discover some unusual signs of the new ...

A new COVID-19 variant named "Nimbus" has been detected in the U.S. and is spreading rapidly. Here's what to know about ...

Stay informed about COVID-19 symptoms & prevention. Explore WebMD's comprehensive resource for information on signs, precautions, & the latest updates ...

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 ...

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

Can coronavirus symptoms predict whether a patient will develop a severe case of COVID-19? A new study says that’s precisely the case, providing six different … ...

COVID-19 variant N.B.1.8.1, or Nimbus, is more contagious than recent past variants and known to cause a particularly painful ...

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.

Key symptoms can help tell apart a Covid infection from hay fever, despite some similarities in how they present. This year, millions of people in the UK have been tormented by the aggravating ...

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

Once again, a new strain of COVID has hit the country, and that includes the state of Massachusetts. According to the Centers ...