title: Hepatitis A and B seropositivity among medical students.
abstract: OBJECTIVE
  Health science students are commonly exposed to some infectious agents, including hepatitis A virus (HAV) and hepatitis B virus (HBV), which may cause substantial morbidity and even deaths. The identification of prevalence and risk factors is essential for implementing efficacious preventive measures. A serological survey was performed among medical students of Adnan Menderes University Medical Faculty to determine the prevalence of antibodies against HAV and HBV, and, as a secondary objective, to determine risk factors for acquisition of these infections.
  
  
  METHODS
  Nearly all students were included in the study. All participants completed a structured questionnaire that assessed demographic and socio-economic characteristics. Anti-HAV IgG, anti-HBc IgG, HbsAg and anti-HBs were tested using commercially available Elisa kits.
  
  
  RESULTS
  A total of 247 students, 146 (59.1%) male and 101 (40.9%) female, were included in the study. The prevalence of anti-HAV IgG was detected as 64%. Number of siblings and place of residence were detected as independent factors affecting the anti-HAV seropositivity. The prevalence of anti-HBc IgG was detected as 7.3%. Among the students positive for anti-HBc IgG, 5 (2%) students were HBsAg positive and the other 13 (5.3%) were anti-HBs positive. HBV infection in household members, risky sexual behaviour and vaccination were independent factors affecting the prevalence of anti-HBc IgG positivity.
  
  
  CONCLUSIONS
  The high susceptibility of medical students and their increased risk of clinical HAV and HBV infection identify a need for primary prevention through the administration of vaccination in this group in western Turkey.
authors.affiliation: Department of Infectious Diseases and Clinical Microbiology, Adnan Menderes University Medical Faculty, 09100 Aydin, Turkey. serkanoncu@hotmail.com
authors.forename: Serkan
authors.initials: S
authors.lastname: Oncu
authors.forename: Selcen
authors.initials: S
authors.lastname: Oncu
authors.forename: Serhan
authors.initials: S
authors.lastname: Sakarya
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006506:Hepatitis A / Q000453:epidemiology*; D006509:Hepatitis B / Q000453:epidemiology*; D006801:Humans; D008297:Male; D016036:Seroepidemiologic Studies; D013337:Students, Medical; D014421:Turkey / Q000453:epidemiology