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.

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

The Stratus variant of Covid, formerly known as XFG, is concerning health officials due to its ability to reinfect people ...

While you are soaking up the summer sun, doctors say you can still get sick, including from two new COVID strains that are ...

While you are soaking up the summer sun, doctors say you can still get sick, including from two new COVID strains that are ...

In the UK and the USA, risk of reporting a positive test for COVID-19 was increased among front-line health-care workers. Health-care systems should ensure adequate availability of PPE and develop ...

“One of the most noticeable symptoms of the Stratus variant is hoarseness, which includes a scratchy or raspy voice," ...

A positive COVID-19 test result is not something that anyone wants to see — but now there may be an extra reason to avoid ...

The COVID-19 vaccine is safe during pregnancy, and vaccination can protect our patients and their infants after birth," President Steven J. Fleischman said in a statement.

A kitten housed at the Burlington County Animal Shelter has tested positive for rabies, the county health department announced June 26.

More mosquitoes have tested positive for West Nile Virus in the north suburbs, this time in Evanston, Illinois health officials said.