HIV/STI Surveillance, Epidemiology, and Research


CDPH STI specialty clinics serve a large and varied clientele, including racial and sexual minorities. CDPH clinics provide confidential HIV/STI testing, STI treatment, linkage to HIV care and HIV pre-exposure prophylaxis, and vaccination for mpox, COVID, and influenza. CDPH is committed to ensuring all residents, including partner organizations and providers, have access to information and data regarding our work, programs, and the health status of our residents and their communities. This report summarizes and highlights data from CDPH's STI Specialty Clinics for the years 2017 - 2021.

HIV Infection Risk, Prevention, & Testing Behaviors Among Gay, Bisexual, and Other Men Who Have Sex with Men National HIV Behavioral Surveillance, Chicago, 2014 and 2017

The Chicago Department of Public Health (CDPH) analyzed data from the National HIV Behavioral Surveillance (NHBS) system in Chicago to assess sexual behaviors, substance use behaviors, health care and HIV services utilization behaviors, and HIV prevalence among men who have sex with men (MSM). This report summarizes findings from the two most recently completed MSM cycles that took place in 2014 and 2017 and intends to describe the HIV behavioral risk factors of Chicago MSM by race and ethnicity and age. CDPH's surveillance system allows us to better integrate our efforts to help community partners and Chicagoans understand the HIV epidemic and to direct HIV services funding to where it is needed the most.

Get Local HIV/STI Data

The annual CDPH HIV/STI Data Report presents data for new and prevalent cases of HIV, new diagnoses of chlamydia, gonorrhea, syphilis, and congenital syphilis and highlights how HIV is impacting transgender persons. Additionally, the 2021 report provides a summary of the Medical Monitoring Project (MMP) and programmatic data obtained from Population Centered Health Homes (PCHH) in our HIV Services Portfolio. Working together with public and private organizations, communities, and researchers, CDPH remains committed to advancing policies and practices that support full attainment of sexual health and wellness for our residents.

Get Local, State and National AIDS/HIV Data

AIDSVu is a compilation of interactive online maps that displays HIV prevalence data at the national, state and local levels and by different demographics, including age, race and sex. AIDSVu provides interactive maps of HIV prevalence data by census tract for Philadelphia and Washington, D.C., and by ZIP code for Atlanta; Chicago; Dallas; Detroit; Houston; Los Angeles County; Miami; New Orleans; New York City; Philadelphia; San Francisco; San Juan, Puerto Rico; and Washington, D.C. National maps displaying data at the state and county levels are also available. National maps displaying data at the state and county levels have been updated to include 2009 data – the most recent nationally comparable HIV prevalence data available from the U.S. Centers for Disease Control and Prevention (CDC). Additional city maps providing ZIP code and census tract data will be added to the site in the future.

Project Chat-Behavioral Surveillance Data for Persons at High Risk for HIV

Project Chat was created by the Centers for Disease Control in 2003 to conduct behavioral surveillance among persons at high risk for HIV infection, it is locally known as Project CHAT. Surveillance is conducted in rotating annual cycles focusing on three different populations at high risk for HIV: men who have sex with men (MSM), injection drug users (IDUs), and heterosexuals at increased risk for HIV infection (HET). Data on behavioral risks for HIV, HIV testing behaviors, access to and use of prevention services and HIV testing results are collected. 


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