An Example of Mild Hemolytic Disease of the Newborn Caused by Anti-Co^b

A woman whose serum contained multiple alloanti-bodies delivered a full-term infant with mild hemolytic disease of the newborn. The direct antiglobulin test performed on the cord cells was positive with monospecific anti-IgG. An acid elution performed on the cord cells yielded anti-Co^b. These findings were consistent with the presence of anti-Co^b in the maternal serum. Neonatal clinical findings showed a mildly affected infant who demonstrated a moderate rise in total bilirubin and slight jaundice. The infant experienced no further complications and was discharged.