Aplastic Anaemia

Two patients with fatal aplastic anaemia developing after infectious hepatitis have been found among 80 cases of aplastic anaemia during the 5‐year period 1964–68. Approximately 900 cases of infectious hepatitis were registered during the same time. The findings would indicate that at least 2.5% of the aplastic anaemias are connected with infectious hepatitis and that the risk of developing aplastic anaemia after viral hepatitis is in the order of 0.1–0.2%. Two additional patients with the same combination of hepatitis and aplastic anaemia are described from the years following the original 5‐year period. A survey of the literature is given.