McHenry County, IL
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Protect yourself and others from STIs.
About Sexually Transmitted Infections (STIs)
- Sexually Transmitted Infections (STIs), also known as sexually transmitted diseases (STDs), are infections caused by bacteria, viruses, or parasites that are spread from one person to another through sexual activity (vaginal, anal, and oral sex) or sexual contact.
- STIs are very common. People with all backgrounds and ages can get STIs. Millions of people contract STIs every year.
- STIs may have mild or no symptoms. It is important to get tested if you are having sex.
- STIs are preventable and treatable, and some are curable.
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Syphilis Risk Assessment in McHenry County
Check out the McHenry County Syphilis Risk Assessment Report for a comprehensive review of syphilis, why it matters to McHenry County, and key priorities that McHenry County Department of Health has identified to help combat the rise in syphilis.
Keep McHenry County Safe - Report!
We appreciate your cooperation with our investigations as we work to keep community members in McHenry County safe and healthy.
Report any chlamydia, gonorrhea, and syphilis cases to the health department as soon as possible and within 7 days of a positive lab report date.
You can fax the completed Morbidity Report Form to MCDH's confidential fax machine at 815-334-0191. Click here for the fillable PDF of the Morbidity Report Form from the Illinois Department of Public Health (IDPH).
Get Tested. Get Treated.
Contact McHenry County Department of Health to schedule an appointment or for more information by calling 815-334-4500.