On November 16, 2012, SNRG’s NYC National HIV Behavioral Surveillance (NHBS) IDU3 team concluded its third tri-annual round of interviews, and HIV and hepatitis B/C testing, with injection drug users (IDU) in New York City. More than 500 study participants were interviewed and tested at one of the three NYC NHBS field sites in Bushwick, Brooklyn; the Lower East Side, in Manhattan; and Mott Haven, in the Bronx.The NHBS study is a national CDC study conducted in cities with high rates of HIV prevalence that each year recruits a sample of a population at high risk for HIV (IDU, men who have sex with men, and heterosexuals at elevated risk for HIV). As in many SNRG studies, the study used respondent-driven sampling (RDS), a chain-referral strategy where study participants recruit future study participants. HIV and hepatitis B and C tests, and risk-reduction counseling were provided to all participants who agreed to testing. Participants were compensated for study participation and recruiting. Following the cyclical design of the NHBS, the SNRG NHBS team is now preparing for 2013 data collection with heterosexuals at elevated risk for HIV, in collaboration with the NYC Department of Health and Mental Hygiene, and the CDC. For a map of the recruitment click here.