There are different blood types: A, B, AB, and O, with each also being Rh-positive or Rh-negative. Knowing your blood type is important for safe blood transfusions and organ transplants. Type ...

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.

TOPEKA, Kan. (WIBW) - Community Blood Center (CBC) has issued an urgent call for types O-negative and O-positive blood, the two most crucial blood types for emergency and trauma care. Following a ...

Eureka’s Northern California Community Blood Bank, the only blood supplier in Humboldt and Del Norte counties, is running dangerously low on O-positive, potentially threatening emergency transfusions ...

Knowing your blood type is critical during emergency health situations. Knowing your blood type is crucial medical information, but unless you've given blood before you might not be sure what yours is ...

LITTLE ROCK, Ark. – Officials with Our Blood Institute have put out a call for Type O blood donors due to low levels following the holidays. Officials said donors are needed now to support hospitals ...

The New York Blood Center is sounding the alarm over a critical shortage of the region’s most vital blood types—O-negative and O-positive—calling on donors across the tri-state area to act immediately ...

O-positive and O-negative blood supplies are critically low across Oklahoma. Here’s why hospitals rely on type O donors and how you can help. O-positive and O-negative blood supplies are critically ...