[Seroprevalence of hepatitis E virus in patients with hepatitis C and / or infected with HIV].

Introduction: Hepatitis E virus (HEV) can cause chronic infection and cirrhosis. The seroprevalence data of anti-HEV IgG in the patients infected with HIV or with chronic liver disease are scarce.

Methods: To document the seroprevalence of HEV infection in HIV patients or with chronic liver disease population, a retrospective study in serum samples from 625 patients was carried on: 200 HIV infected, 200 HCV infected, 25 coinfected by HIV and HCV and 200 healthy controls. Anti-HVE IgG antibodies were determined in serum samples by a commercial immunoassay (EIA) and all positive samples were studied further for the presence of anti-HEV IgM antibodies (HEV IgM 3.0; DiaSorin, Turín, Italy). Positive HEV IgM antibody specimens were examined for HEV RNA by polymerase chain reaction.

Results: Anti-HEV IgG were reactive in 25 (12.5%) of the 200 HIV-infected patients, in 47 out of 200 HCV infected patients (23.5%), 10 out of 25 coinfected HIV-HCV group (40%) and 24 out of 200 healthy controls (12%). According to EIA anti-HEV IgM, 11 patients could be considered as acute hepatitis E cases but in only one of them was confirmed recent HEV infection by RT-PCR.

Conclusions: The higher seroprevalence was found in HIV-HCV coinfected patients. The only patient with HEV RNA was HIV-HCV coinfected.