Participants gave verbal informed consent at the study site. Following survey administration, each participant was reimbursed for travel, ranging from the equivalent of US $7.00-$23.00. Those who recruited participants into the study also received the equivalent of US $2.50 per participant successfully enrolled in the study. No names or identifying information were collected of any participants. HIV and syphilis tests also remained anonymous, and participants elected whether or not they wished to receiveresults.