One of the most important characteristics of blood is its type. Knowing your blood type is essential for several healthcare situations. Knowing someone's blood type is important for blood transfusions ...

Jul. 22—ROCHESTER — The Mayo Clinic Blood Donor Program is issuing an urgent call for type O-negative blood donors. It is currently facing a critical shortage of O-negative blood, according to a press ...

WAUSAU, Wis. (WSAW) - The Wausau Community Blood Center says there is a critical need for Type O blood throughout the country. The American Red Cross says Type O-Negative blood is the most common ...

The Northern California Community Blood Bank is in “urgent” need of O-negative blood, with supplies locally reaching “critically low” levels and is asking the public to help replenish the supply.

HONOLULU (KHON2) — Blood donors around the islands have been called to help in a critical shortage, specifically those with O-negative and O-positive blood. Download the free KHON2 app for iOS or ...