International AIDS Society


Second generation of HIV sentinel surveillance among men who have sex with men in Peru during 2002

J Guanira1, M Pun2, H Manrique3, J Lama1, R Galvan1, J Vergara1, A Laguna4, J Olson4, L Suarez2, J Sanchez1
1Asociacion Civil IMPACTA Salud y Educacion, Lima, Peru; 2General Office of Epidemiology, Ministry of Health of Peru (MoH), Lima, Peru; 3National STD and AIDS Control Program, MoH, Lima, Peru; 4US Naval Medical Research Center Detachment, Lima, Peru, Lima, Peru

Background: Peru has established a HIV, sexually transmitted infections (STI) and risk behavior sentinel surveillance among of men who have sex with men (MSM) since 1996.
Methods: During three months in 2002, men from six different cities (Lima, Arequipa, Sullana, Piura, Iquitos y Pucallpa), reporting at least one male sex partner during the last year, were invited to participated. Demographic and sexual behavior data were obtained through computer assisted self-interview. Serum samples were tested for antibodies against HIV-1 (ELISA and confirmatory WB), Treponema pallidum (RPR and confirmatory MHA-TP) and HSV-2 (Ig by ELISA). Participants receive pre- and post-test counseling, free condoms and lubricants, and were referred for appropriate management according to results.
Results: A total of 3,280 MSM consented to participate in this study. Nationwide, prevalences were 13.9% for HIV, 13.4% for syphilis and 46.3% for HSV-2. Diagnosis of early syphilis (RPR > 1:8 and confirmatory MHA-TP) was done in 3.4% of participants. Striking differences were found by city. Among 1,358 MSM from Lima, HIV was present in 22.3% and HSV-2 in 49.0% vs. 8.0% (p<0.001) and 44.42% (p=0.009) respectively among 1,922 MSM out of Lima. The highest HSV-2 prevalence was observed in Iquitos (65.9% of 320 MSM tested), and for syphilis was in Pucallpa (30.4% of 335 MSM tested). Early syphilis was present in 6.9% in MSM from Iquitos. MSM from Lima, compared with them from other cities, recognized STI symptoms more frequently (32.1% vs. 12.0%, p<0.001) and had more HIV+ sexual partners during the last three months (7.8% vs. 4.0%, p<0.01). However, unprotected anal receptive intercourse with the last partner (36.2% vs. 31.3%, p=0.013) and sex with women (41.1% vs. 30.8%, p<0.001) were more frequent out of Lima.
Conclusions: HIV, STI and risk behaviors are prevalent among MSM in Peru. Differences by cities warrant city-tailored interventions.

The XV International AIDS Conference
Abstract no. WePeC6162

Suggested Citation
" J Guanira , , et al. Second generation of HIV sentinel surveillance among men who have sex with men in Peru during 2002 . Poster Exhibition: The XV International AIDS Conference: Abstract no. WePeC6162"