The Stratus variant, also known as XFG, is said to be behind the vast majority of new cases in Ireland and is spreading among ...

The variant carries a sneaky, initial symptom that individuals might dismiss instead of recognizing as sickness. Stratus' ...

Two health care workers get COVID-19 vaccinations on the same day. Both show strong antibody responses initially, but six ...

Vaccination is still important to ward off the worst of the coronavirus. Three experts discuss the concerns with restricting access.

D octors in the United States have documented what is believed to be the longest-known case of COVID-19, lasting an ...