The authors point out a high serological incidence of HCMV infection i
n the course of HCV hepatitis compared to a low incidence detected in
HBV and HAV hepatitis. Three immunoglobulin classes (IgG, IgM, and IgA
) specific to HCMV were investigated. Antibody titers of each immunogl
obulin class are reported for all the cases of HCMV infection.