Note: This dataset is historical only and STI surveillance data do not change once finalized. For the most recent STI data, please refer to the CDPH Health Atlas (chicagohealthatlas.org), the annual HIV/STI surveillance report, and the Getting to Zero Illinois HIV Dashboard (gtzillinois.hiv). The annual number of newly reported, laboratory-confirmed cases of chlamydia (Chlamydia trachomatis) among females aged 15-44 years and annual chlamydia incidence rate (cases per 100,000 females aged 15-44 years) with corresponding 95% confidence intervals by Chicago community area, for years 2000 – 2014. See the full description by clicking on the maroon "About" button on the right-hand side of the screen, and click on the PDF under "Attachments".

STI Rates in Lake County, Illinois. An explanation of field attributes:,,Chlamydia- Chlamydia is a common sexually transmitted infection (STI) caused by the bacteria Chlamydia trachomatis. This is a rate per 100,000.,Gonorrhea – Gonorrhea is a common sexually transmitted infection (STI) caused by the bacteria Neisseria gonorrhoeae. This is a rate per 100,000.,

These data contain case counts and rates for sexually transmitted diseases (chlamydia, gonorrhea, and early syphilis which includes primary, secondary, and early latent syphilis) reported for California residents, by disease, county, year, and sex. Data were extracted on cases with an estimated diagnosis date from 2001 through the last year indicated, from California Confidential Morbidity Reports and/or Laboratory Reports that were submitted to CDPH by July of the current year and which met the surveillance case definition for that disease. Because of inherent delays in case reporting and depending on the length of follow-up of clinical, laboratory and epidemiologic investigation, cases with eligible diagnosis dates may be added or rescinded after the date of this report.

This data file contains information on the female and male clients tested for selected sexually transmitted infections (STIs) accessed through the Family Planning, Access, Care, and Treatment (Family PACT) Program from July 1, 2003, through the current Fiscal Year (FY) of available data. Some clients may have been tested for more than one disease.