If you don't know your blood type, you're not alone. However it is important medical information to know, and here's how you can find it. Macy Meyer is a North Carolina native who graduated from ...

The ratio of patients with type AB blood who had serious cases of COVID-19 was found to be 1.4 times higher than that for people with AB blood in the second group.

The ABO system represents different proteins that are stuck to the outside of your red blood cells. You can either have A, B, both (AB) or none (O). If someone who is type A receives type B blood ...