The American Red Cross has declared a national blood supply crisis after donations fell to their lowest summer levels in four years, marking only the second such declaration in the organization's history.
According to the Red Cross, the shortage has forced it to limit distributions of Type O blood to hospitals.
The report said extreme heat, poor air quality and widespread foodborne illnesses have reduced donor turnout, while hospital demand continues to exceed available blood supplies.
Type O blood, which is compatible with the majority of patients, now has less than a one-day national supply for Type O positive.
Officials urged eligible donors to schedule appointments as soon as possible, saying even a small increase in participation at each blood drive could help stabilize the nation's blood supply.
Related Tweet:
The American Red Cross says "tens of thousands" of people donated blood this week after it declared a national blood crisis — but the U.S. still needs more donors.https://t.co/omKxHxXdPl
— Axios (@axios) July 31, 2026
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