Abstract
We searched for antigen-antibody systems associated with hepatitis viruses in sporadic acute hepatitis observed in the internal department of Nagoya city Institute of Higashi Hospital from June, 1976 to December, 1979. We then classified 72 cases of those hepatitis to hepatitis A, hepatitis B, and non A, non B hepatitis, and compared especially their frequency and clinical course.
The frequency of each hepatitis was hepatitis A: 30.6%, hepatitis B: 25.0%, non A, non B hepatitis: 44.4%.
Clinical symptoms, especially subjective symptoms passed by less seriously in the order of hepatitis A, hepatitis B, and non A, non B hepatitis.
With respect to prognosis, all 22 case of hepatitis A healed well without persistent symptoms.
In hepatitis B, one case died of subactue hepatitis, but other 17 cases healed well without shifting to chronic hepatitis or continuous infection. Non A, non B hepatitis passed by less seriously in clinical symptoms, however 7 cases out of 32 (21.9%) shifting to persistent and chronic hepatitis, but we observed no case of death.
Atypical lymphocytes was observed in hepatitis A, and some non A, non B hepatitis in peripheral blood pictures.
