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 ...
Cruz Wallace, a 2-year-old with hemophilia, urgently needs O-negative blood ahead of surgery scheduled for Thursday, his family told KLFY. Hemophilia is a genetic bleeding disorder that prevents blood ...