There are four major blood type groups: A, B, AB, and O. Your blood type is determined by the presence or absence of specific ...

Your blood type matters Unless you've recently given blood, you may not think much about your blood type. The presence or absence of certain molecules called A or B antigens, as well as a protein ...

Negative blood types are particularly valuable because they are not common. With less than 2% (one in 50 donors) of the ...

For example, a small study out of Canada in October found that patients with blood type A or AB are at increased risk for requiring ventilation compared to those with blood type O or B.

A SERUM that identifies a new blood-group antigen was obtained from the parturient mother of a baby with erythroblastosis fœtalis. Mrs. Kidd had had five previous pregnancies but no blood ...

Not to B-negative, but your blood type could offer a clue to your risk of having a stroke before 60. “The number of people with early strokes is rising,” said Dr. Steven J. Kittner ...

Assays for hepatitis B surface antigen (HBsAg) are the most frequently used tests to detect HBV infection. Vaccination for HBV can produce transiently detectable levels of HBsAg in patients.