Type O Blood: Universal Donor Status and Transfusion Logistics

Type O negative = universal red cell donor (compatible with all blood types).

Type O positive = compatible with all Rh+ types (~85% of population).

High demand for O blood drives consistent collection. Shortages are rare but possible during disasters. O-negative is especially critical for trauma/neonates when type is unknown.

If you're Type O, regular donation significantly impacts blood supply resilience.