There are different blood types: A, B, AB, and O, with each also being Rh-positive or Rh-negative. Knowing your blood type is important for safe blood transfusions and organ transplants. Type ...

HERSHEY, Pa. — A special immune treatment may not be necessary until after the first trimester of pregnancy, according to a new Penn State and University of Pennsylvania study. The researchers said ...

In March, the U.S. FDA reported a major shortage of Rhogam, the anti-D immune globulin most widely used to prevent Rh factor incompatibility in pregnancy. Without treatment, second and subsequent ...