RESUMEN
BACKGROUND: The prevalence of serum markers of viral hepatitis in health-care workers seems to be similar to that described in the general population, even though this group would appear at increased risk because exposure to potentially infectious material. There is scarce information available in Mexico in this regard. AIM: To define the prevalence of serum markers for hepatitis C (anti-HCV antibodies) and hepatitis B (hepatitis B surface antigen, HBsAg) in health-care workers at the Instituto de Seguridad Social del Estado de Mexico y Municipios (ISSEMYM) and to establish the presence of viremia in subjects with positive serum markers. METHOD: Health-care workers from ISSEMyM with unknown hepatitis serologic status participated voluntarily in this trial. They completed a written questionnaire detailing potential risk factors for viral hepatitis and provided a blood sample. RESULTS: A total of 374 health-care workers were included. Seven subjects (1.8%) were positive, 5 for anti-HCV antibodies (1.3%) and 2 for HBsAg (0.5%). None of these subjects had detectable serum HCV RNA or HBV DNA on further testing. CONCLUSIONS: The frequency of positive serum markers for viral hepatitis in this group of healthcare workers is similar to the estimated prevalence among the general population in Mexico. No case of active infection defined by positive viremia was encountered in this group of subjects.