A rare but serious clotting disorder linked to certain COVID-19 vaccines and natural adenovirus infections has puzzled scientists for years.

Rare but dangerous blood clotting associated with that vaccine as well as AstraZeneca’s had a genetic cause, according to a new paper.

Rare but deadly blood clots tied to J&J and AstraZeneca's vaccines were caused by an autoimmune reaction that some people are predisposed to, researchers found.

Scientists say they have identified a mutated autoantibody gene as the mechanism behind rare but serious abnormal blood ...

If you haven’t experienced it yourself, you probably know someone who lost their sense of taste or smell from COVID-19. “This virus has receptors including the ACE-2 that it binds to. And the ACE-2 ...

When reports of rare but severe blood clots emerged after Johnson & Johnson’s COVID vaccine, they threatened to overshadow an otherwise successful immunization campaign and left scientists searching ...

Discovery caps 5-year journey to get to the bottom of one of the most puzzling chapters of the COVID-19 pandemic ...

Whether or not a person becomes seriously ill with COVID-19 depends, among other things, on genetic factors. With this in mind, researchers investigated a particularly large group of affected ...

Editor's note: Find the latest COVID-19 news and guidance in Medscape's Coronavirus Resource Center. A novel study of genome-wide association studies (GWASs) of people with COVID-19 or thyroid ...