Abstract

A 7-week-old albino infant developed acute haemolytic anaemia following an operation for strangulated inguinal hernia. This was considered to be due to polyagglutinability of the red cells, the haemolysis subsiding as the cells returned to normal. The red cell changes were shown to be due to activation of T-antigen, reacting with anti-T in the adult blood transfused to the infant.