Hemolytic Disease of the Newborn Associated with Anti‐Jk3

Abstract
A mild case of hemolytic disease of the newborn (HDN) associated with anti-Jk3 was documented. The Filipino mother had previously had 6 children none of whom had been affected by HDN. She had been transfused at the time of her 2nd pregnancy. Anti-Jkb and anti-Jk3 were detected in the maternal serum at the time of her 7th delivery. No prenatal serologic tests for blood group antibodies had been performed. The cord blood had a positive direct antiglobulin test and anti-Jkb plus anti-Jk3 were eluted. The infant was treated with phototherapy.