Catching the virus that causes COVID-19 or getting a COVID-19 vaccination gives you protection, also called immunity, from the virus. But over time, that protection seems to ...

Available vaccines: For people under 19: COVID-19 (Moderna 6 months to 18 years), flu ... People with covid-19 can be contagious for 5-10 days after their illness begins. People with flu can be ...

Pfizer's and Moderna's formulas have been the go-to on pharmacy shelves, but Novavax remains an important option.

From a $100 billion AI investment to a cancer vaccine trial, check out this week's awesome tech stories from around the web.

Health data show that COVID-19 still surpasses all other infectious respiratory illnesses as a cause of severe illness, ...

The winter season ushers in a new globally spreading COVID-19 variant called XEC, a mix of KS.1.1 and KP.3.3, both from the ...