A Second Example of Anti-Fy^b

A second example of anti-Fy^b was found in the serum of a patient immunized by transfusions and pregnancies. In addition to anti-Fy^b, anti-c and anti-E were also present. The identification of the antibody as anti-Fy^b was made in part with the aid of a 2 x 3 table in parallel tests with anti-Fy^a.