RESUMO
This work was conducted on 107 adult Egyptian patients with acute viral hepatitis as well as ten normal age and sex matched subjects taken as a control group. The patients were divided into HAV, HBV, HCV, combined HBV and HCV and seronegative groups. The results indicated that among 107 patients diagnosed as acute viral hepatitis, 55 patients were positive for HbsAg, 28 patients were positive for HCV antibodies and seven patients were positive for HAV. Also, six patients were positive for both HBV and HCV and 11 patients were seronegative. The incidence of bilharziasis was higher in the seronegative group. It was concluded that the most frequent cause of acute viral hepatitis among the studied Egyptian patients was HBV, followed by HCV infection; while HAV represented the least one to cause acute viral hepatitis among adults