The Pros & Cons of Your Blood Type

What determines a person's blood type?

• The amount of plasma in their blood.

• The type of sugar antigens on the surface of their red blood cells.

• The number of white blood cells they have.

• The color of their blood.

Which blood type is associated with a lower risk of severe malaria?

• Type A

• Type B

• Type AB

• Type O

Why are people with Type O blood at a greater risk for a more severe case of cholera?

• Their blood cells are too small to fight the cholera toxin.

• The cholera toxin binds more strongly to the H antigen, which Type O blood has.

• They have too many A and B antigens that attract the cholera toxin.

• Their immune system is weaker against bacterial infections.

Which blood types are associated with a higher risk of heart disease, heart attack, and stroke?

• Type O

• Type A, B, or AB

• Only Type A

• Only Type B