The highest prevalence rates of hepatitis C virus infection in the wor
ld have been recently reported among Egyptian blood donors and frequen
t recipients of transfusions and other blood products. This is the fir
st report, however, demonstrating hepatitis C as the most frequent ass
ociation with chronic liver disease in Egypt. Of 1023 patients referre
d to the Liver Institute in Menoufia governorate for evaluation of chr
onic liver disease, 752 (73.5%) had antibodies to hepatitis C compared
with 168 (16.4%) with hepatitis B surface antigen. Hepatitis C antibo
dy was more common in patients with active schistosomiasis and patient
s without hepatitis B surface antigenaemia. Of 100 patients having liv
er biopsies, histological findings consistent with chronic viral hepat
itis or its complications were found in 89 and antibody to hepatitis C
was present in 75 (84.3%) of these patients with chronic hepatitis, a
ctive cirrhosis or hepatocellular carcinoma. These data pointing to th
e importance of hepatitis C as a cause of chronic liver disease in Egy
pt emphasise the necessity of studies delineating its routes of transm
ission in this country.