BackgroundHepatitis B virus (HBV) infection remains a major global health problem. This study aimed to assess the prevalence and risk behaviors for HBV infection among high risk groups in Kohgiloyeh and Boyerahmad province, in Southwest of Iran.MethodsBlood samples were collected from 2009 subjects, between 2009 and 2010 in Kohgiloyeh and Boyerahmad province, in southwest of Iran. Recruited subjects were the high risk groups for HBV infection, including inmates, injecting drug users, health care workers, patients on maintenance haemodialysis, hemophilic patients and patients with a history of blood transfusion. Their serum samples were tested for the presence of antibodies to hepatitis B core antigen (HBc IgM, IgG) by enzyme-linked immunosorbent assay (ELISA). Seropositive specimens were tested for HBsAg. Demographic features of participants were recorded during sample collecting.ResultsHBsAg was detected in 24 of the 2009 subjects, giving an overall prevalence of 1.2%. All HBsAg positive cases were males. The prevalence of HBsAg among injection drug users was 3.2%. Significant correlation was found between HBV infection and drug abuse, level of education and place of residence (p<0.05), while no significant correlation was found between HBV infection and previous history of blood transfusion, unprotected sexual behavior, and thalassemia.ConclusionBased on the findings of this study, incarceration and drug abuse are the most important risk factors for acquiring HBV infection in this region. Modifying behavior, improving the individual education and expanding the HBV vaccination coverage may reduce the rate of infection in the region.

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We conducted a survey to assess the seroprevalence and risk behaviors for HIV infection in 2,009 individuals in Kohgiloyeh and Boyerahmad province, in Southwest of Iran. Blood samples were drawn from each participant and tested for anti-HIV1/2 antibodies. HIV antibodies were detected in 36 (1.8%) blood samples among a total of 2,009 participants. The rate of infection in inmates was 2.7% while this rate was 9.9% in injection drug users. Correlation between HIV infection and sex, age, marital status, history of imprisonment, injection drug use, and place of residence were significant. Improving of the surveillance in this community through supervision and monitoring of infected people is needed.