Flu, COVID and seasonal colds are all circulating this winter, and their symptoms can be surprisingly similar. Here’s how to tell them apart.

A person's immune response to variants of SARS-CoV-2, the virus that causes COVID-19, depends on their previous exposure - and differences in the focus of immune responses will help scientists ...

We were unable to process your request. Please try again later. If you continue to have this issue please contact [email protected]. Nearly 85% of people with long COVID had experienced ...