More than four years since the coronavirus ignited a global pandemic, the virus officially named SARS-CoV-2 keeps evolving — and so does our understanding of how it works. Some of our early ...

As summer comes to an end, COVID-19 cases are on the rise again in California. While respiratory viruses usually peak in the winter, the novel coronavirus can also surge in the warmer months.

Ohio is a hotspot for respiratory illnesses, including COVID-19 and a new flu strain. Health officials advise staying home until you are fever-free for 24 hours and symptoms improve. COVID-19 ...

Hi, it’s Bob in New York. Like many people, I recently got sick after being exposed to Covid at a family gathering. My test results were interesting. But first ... I was exposed to Covid at a family ...

While many respiratory viruses—including COVID-19, RSV and influenza—circulate year-round in California, they are typically more active between October and March, according to the California ...

Johns Hopkins researchers defend their external clinical validation of the RECOVER Long COVID index, arguing their ...