Epidemiological knowledge of HIV infected subjects, especially in poor resource settings, is essential for policymakers to manage challenges presented by this disease (
9). The HIV/AIDS surveillance system was not in direction of second generation HIV surveillance system, which was presented by the world health organization (WHO) (
10). Iran, as a developing country, has always had several challenges to implement this WHO program; this is due to a lack of accuracy of collected information (
11). Therefore, HIV/AIDS prevalence is commonly underestimated.
This was a population-based study about the prevalence of HIV-related high-risk behaviors in east of Iran, Birjand. Investigation of high-risk behaviors could aid with the prevention of diseases like HIV/AIDS. The findings showed that fortunately the prevalence of HIV positive results was 0 in Birjand, East of Iran, and most prevalent risk behaviors were history of dental surgeries (1709; 32.6%), history of bloodletting (802; 15.3%) and history of blood transfusion (196; 3.7%). Males had the highest portion in all high-risk behaviors related to HIV in comparison with females, and history of drug injection, tattooing, unsafe sexual contact, imprisonment, and dental surgeries showed a significant relationship with gender. Makiani et al. indicated that 8.4% of subjects had reported tattooing, 7.6% had drug injection, and 10.7% had unsafe sexual contact in Bandar Abbas, South of Iran (
7). This study showed that the prevalence of tattooing, drug injection, and unsafe sexual contact were 1.5%, 0.2%, and 0.8% in Birjand, East of Iran. To the best of our knowledge, most of the Iranian studies have been about the prevalence of HIV/AIDS in injection drug users (IDU), hemophilia patients or prisoners (
6,
12-
17). Patients, who have HIV/AIDS, are more likely to have stigma, which causes the disease to stay hidden and transfer to others. Therefore, prevention programs need to pay particular attention to psychological aspects of social care and support of HIV-infected patients and prevention of stigmatization, especially in areas where the prevalence of the disease is very low and is much harder for patients to deal with their disease. Doosti-Irani and Holakouie-Naienishows are topics related to knowledge, prevention of HIV/AIDS, adherence to treatment and drug resistance are research priorities in Iran (
18). Currently, HIV has no cure, and the only way to remain safe is prevention. However, HIV/AIDS progress is still in controllable level in Middle East and North Africa (MENA) regions, which should not be missed (
19).