Both the American Red Cross and Vitalant are asking people to schedule an appointment and donate ...

A critical shortage of Type O blood is putting pressure on local supplies, prompting Vitalant to make a rare public appeal ...

Vitalant says type O blood supplies in South Dakota and Northern Wyoming are at a two-year low. Donors, especially type O, ...

Every two seconds, someone in the United States needs blood. While blood donors are always needed, those with type O blood ...

SAN ANTONIO – Type-O blood levels are critically low in San Antonio and the South Texas Blood and Tissue is asking the community to help. STBT officials said they need more than 100 units of Type-O ...

The American Red Cross and nonprofit blood provider Vitalant are asking for help as Type O blood supplies drop to lowest ...

As blood banks across the U.S. report dangerously low supplies of O-negative blood (red blood cells), anesthesiologists are calling for increased donation and changes in how hospitals use this ...

Nonprofit blood services provider Vitalant is facing a critical shortage of type O blood and urges all donors, especially those with type O, to make an appointment now for the […] ...

A person's blood type is determined by "the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body," according to American Red Cross.