People with O negative blood type are considered universal donors.
Люди с первой отрицательной группой крови считаются универсальными донорами.
Definitions
A universal donor is a person whose blood type can be given to individuals of all other blood types. In the context of blood transfusions, this typically refers to someone with type O negative (O-) blood, as it lacks A, B, and Rh antigens, minimizing the risk of immune reactions in recipients.
