Emergency blood shortage: Red Cross supply drops 25%

Donors urged to give as extreme heat, travel plans threaten already low blood levels The American Red Cross is experiencing an emergency blood shortage as the nation faces dangerous levels of heat and people head out for final summer travel plans. Since July 1, the Red Cross national blood supply has fallen by more than 25%, and blood donors of all types, especially those with type O blood, are urged to give as soon as possible to help patients receive lifesaving medical care.