[Acute viral hepatitis A and C: report of a case].

We present a case of acute hepatitis by simultaneous A and C virus infection. The coinfection was suspected due to the high levels of transaminases lasting more than 9 months after onset of the illness. During the early stages of the illness, the patient had IgM antibodies to hepatitis A virus. Serological tests for hepatitis B and C viruses, cytomegalovirus and Epstein-Bar virus were negative. Due to the persistently high transaminase levels, we repeated the serology, detecting positive results for hepatitis C antibody, while hepatitis B serology remained negative as well that for all other virus tested. With these findings, we believe that a patient with hepatitis A of long duration, requires additional serological examinations to determine the possibility of coinfection by another virus.