SAN FRANCISCO -- By now you have heard about the huge demand for ventilators to help patients infected with COVID-19. But why are they needed and how are they used? That's the question we posed to Dr.

Updated on March 17 at 6:43 p.m. ET: Thousands of people have now died from COVID-19 — the name for the disease caused by the coronavirus first identified in Wuhan, China. According to the World ...

Long after the acute infection fades, pieces of the virus behind COVID-19 can linger in the body and quietly sabotage the ...

Find out about the COVID-19 vaccines, the benefits of COVID-19 vaccination and the possible side effects.

Add Yahoo as a preferred source to see more of our stories on Google. New research shows some infections increase the risk of heart attack and serious cardiovascular disease. Philip Dulian/dpa ...

A spate of recent media headlines have described blood thinning medications—which include aspirin and warfarin—as a "breakthrough treatment" for COVID-19 that could "save lives". It's early days yet ...

The uEXPLORER total-body PET scanner at UC Davis will be used in a new project to look at the underlying causes of long COVID symptoms. (UC Davis photo) Using total-body PET imaging to get a better ...

A new evidence review found patients infected with influenza or COVID-19 are significantly more likely to suffer a stroke or heart attack in the ensuing weeks. File Photo by Tamas Soki/EPA People's ...