10 Mind-Blowing Blood Type Secrets Your DNA Doesn't Want You to Know

3. Type B

Both the B negative and B positive forms of blood are especially rare in the United States. Nine percent of Americans have B positive blood, and only two percent of individuals around the country have B negative blood. Type B blood has a marker known as marker B, and it lacks any other markers. However, type A antibodies are found in the plasma of type B blood. Patients with B positive blood can donate blood to individuals with B positive or AB positive blood. They can receive blood that is O negative, O positive, B negative, or B positive. Those with B negative blood can donate to patients with B negative, B positive, AB negative, or AB positive blood types. Additionally, individuals with B negative blood can receive transfusions of either B negative or O negative blood.