Chlamydia cases in Calhoun County are about 86% lower than the US average. If you're in Brussels, Illinois looking to test before starting a new relationship or as part of ongoing care, weigh the trade-offs: public clinics keep costs down, private labs prioritize speed, and at-home kits trade a clinic visit for convenience. We list options below.
Available testing centers
7 testing options are listed for Brussels, IL. The nearest, Mercy, is about 9.0 miles away. Compare community and public clinics, private labs, and at-home kits below.
Listings tagged Community health center are federally funded health centers and rural clinics that treat everyone regardless of insurance or ability to pay: required to bill on a sliding fee scale and provide confidential care, and in many states minors may consent to their own STI testing. A Title X tag flags centers funded for confidential family-planning services; confirm current participation when you call.
Source: CMS FQHC & Rural Health Clinic enrollment files (data.cms.gov), refreshed quarterly. Title X status reflects the latest OPA grantee list.
Mercy in Troy covers gonorrhea, chlamydia, syphilis, herpes, hepatitis A, B, and C, TB, and rapid or conventional HIV testing. With same-visit treatment for bacterial infections and fees on a sliding scale. Appointments are required. DoxyPEP is available for ongoing prevention.
DoxyPEP at Mercy involves an actual prescribing relationship: a clinician reviews your history, writes the prescription, and can monitor ongoing use over time. That means the antibiotic regimen is dosed correctly and adjusted if your situation changes, rather than left to guesswork.
A basic four-pathogen panel leaves herpes and all three hepatitis strains undetected, which means a second appointment somewhere else, and a window where treatment hasn't started. Mercy's panel catches all of them in a single visit, so nothing slips through waiting on a separate referral to materialize.
Languages
English
Tests offered
Care services
Prevention services
Fees & payment
Listing verified Nov 2025 · Source: CDC NPIN
Compass Health Network in Saint Charles covers gonorrhea, chlamydia, syphilis, rapid and conventional HIV, hepatitis C, and TB. Bacterial infections treated the same visit. Fees run on a sliding scale, with Medicaid, Medicare, and most insurance accepted; appointments are required.
Languages
English
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Feb 2026 · Source: CDC NPIN + HRSA
Compass Health in Saint Charles meets patients where they are (uninsured, between providers, or paying cash) through federal FQHC funding that anchors sliding-scale fees to income. Walk-ins are welcome for syphilis, gonorrhea, and chlamydia screening, with costs scaled to what each person can pay.
Tests offered
Fees & payment
Free tool · not a clinic
Testing too soon can miss an infection. Enter the date of possible exposure to see the earliest a test can reliably detect each STI.
| Infection | Earliest reliable test | Conclusive after |
|---|---|---|
| Chlamydia | 7 days after exposure | 14 days after exposure |
| Gonorrhea | 7 days after exposure | 14 days after exposure |
| Trichomoniasis | 7 days after exposure | 28 days after exposure |
| HIV (NAT / RNA) | 10 days after exposure | 33 days after exposure |
| HIV (4th-gen Ag/Ab) | 18 days after exposure | 45 days after exposure |
| HIV (antibody) | 21 days after exposure | 84 days after exposure |
| Syphilis | 21 days after exposure | 42 days after exposure |
| Hepatitis B | 21 days after exposure | 42 days after exposure |
| Hepatitis C | 56 days after exposure | 77 days after exposure |
| Herpes (HSV) | 28 days after exposure | 112 days after exposure |
Guidance only, confirm timing with a clinician. A negative result before the conclusive date may need a repeat test.
Typical out-of-pocket ranges by option, actual cost depends on which tests you need.
Public / community clinic
Free HIV testing is common
Private lab (self-pay)
Never billed to insurance
At-home kit
Mailed to your door, private
Doctor / urgent care
Often $0 preventive with insurance
No centers match those filters. Clear the service-type filter or the opening-hours filters to see every center.
Every other option
Beyond the dedicated testing centers above: at-home kits by mail, hospital labs certified for STI testing, local clinicians who can order a panel during a regular visit, pharmacies for self-test kits and prescriptions, and online PrEP & treatment.
Test from home
The nearest testing center is about 9 miles away; if you'd rather skip the trip, an at-home kit ships to Brussels, you collect the sample privately, and mail it back to a CLIA-certified lab. Results come online in days, with a clinician available if anything is positive. Same labs as a clinic, no waiting room, and you can read how accurate at-home STD tests are before you order.
Want a free option first? The CDC-supported TakeMeHome (opens in a new tab) program mails free at-home HIV self-test kits, and, in many areas, free STI kits, to your door, with no insurance or payment needed. The paid kits below add broader panels and faster turnaround.
In-home collection
$79 & up
Best range: couples & full panels
$79 & up
Best for simplicity & support
$89 & up
Every kit uses CLIA-certified labs. At-home testing is for screening; a reactive result should be confirmed and treated by a clinician. Prices and panels shown are illustrative and change often, confirm current details on the provider's site.
Local clinicians
Beyond dedicated clinics, 1,613 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Brussels. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 459 offer telehealth.
Bradley Massey, DO
Family medicine · 35 Winfield Plz, Winfield
Furqan Raja, MD Telehealth
Internal medicine · 70 Jungerman Cirlce, Saint Peters
Megan Mohrman, MD
OB-GYN · 209 1st Executive Avenue, Saint Peters
Molly Caldwell Mcmillan, MD Telehealth
Infectious disease · 10 Hospital Drive, Saint Peters
Salwat Shami, MD
Internal medicine · 10 Hospital Drive, Saint Peters
Kamran Hussaini, MD
Internal medicine · 10 Hospital Drive, Saint Peters
These are registry-listed clinicians, not dedicated STD-testing clinics. CMS records do not independently verify current licensure, testing services, availability, price, or new-patient status. Confirm each detail before booking. Source: CMS Doctors & Clinicians.
Nearby pharmacies
No pharmacy near Brussels, IL publishes an STD-related service or holds a current CLIA testing certificate, so these are simply the closest. Contact a location directly to confirm counter hours, services, prices, and availability before visiting.
Winfield Pharmacy
9.0 miMercy Pharmacy 370 Crossing
9.2 mi
9.6 mi 
10 mi Showing the 4 closest pharmacies to Brussels, IL.
Directory records identify nearby pharmacies. Service, stock, price, and hours information is shown only when supported by current location-specific evidence.
Prevention & treatment
Testing is one step. For residents of Brussels, telehealth covers the rest: HIV-prevention medication (PrEP) and DoxyPEP to lower future risk, and discreet online treatment if a result comes back positive. All prescribed by licensed U.S. clinicians.
From $0 insured
Telehealth PrEP & DoxyPEP with at-home testing and ongoing monitoring
$0 with most insurance
Free online PrEP & DoxyPEP: HIV prevention, home lab kits, no in-person visit
Visit from $39
Online STI treatment & DoxyPEP: same-day prescriptions to your pharmacy
Visit from $0 insured
Telehealth STI treatment and sexual-health care, delivered or to your pharmacy
Pricing varies by insurance and changes often, confirm on the provider's site. These services are not a substitute for emergency care.
STD stats & rates
How reported STI rates in Calhoun County, the county that includes Brussels, compare with Illinois and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~36% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#100 of 102 Illinois counties for chlamydia, among the lowest in the state
| Infection | Calhoun County | Illinois | United States |
|---|---|---|---|
| Chlamydia | 69.5 3 cases ▼ 88% | 557.7 | 492.2 |
| Gonorrhea | — no data | 202.3 | 179.5 |
| Syphilis (P&S) | — no data | 11.6 | 15.8 |
| Syphilis (early) | — no data | 10.9 | 16 |
| Syphilis (late/unknown) | — no data | 26 | 29.5 |
Rates per 100,000 population, 2023. Source: CDC NCHHSTP AtlasPlus (county, state & U.S., all-ages basis). Population figures: U.S. Census Bureau ACS. These figures are the latest available surveillance estimates. Bars are scaled to the highest rate shown.
Reading these numbers: reported case rates only count infections that were actually tested for and diagnosed, so they track local screening effort as much as true spread: a higher rate can reflect more testing, a lower one less. Either way, most STIs cause no symptoms, so treat the figures above as context rather than a verdict, and test on the CDC's schedule regardless of how your area looks.
Between 2020 and 2023 in Calhoun County, chlamydia has fallen from 135.2 to 69.5 per 100,000 (49%), and gonorrhea has held roughly steady from 45.9 to 45.9 per 100,000.
The 2020 dip reflects reduced pandemic-era screening, not lower transmission. Source: CDC NCHHSTP AtlasPlus (county, state & U.S., all-ages basis).
Community health context
Sources: CDC PLACES (ZIP), County Health Rankings, CDC/ATSDR SVI, HRSA HPSA, HRSA MUA/P, Neighborhood Atlas ADI. Lower insurance coverage, fewer routine checkups, and a thin primary-care ratio all raise the value of low-cost public clinics and at-home testing in Calhoun County.
Local HIV snapshot
Calhoun County HIV care continuum (2023)
Calhoun County recorded 0 new HIV diagnoses per 100,000 (2023), against 14.7 statewide and 13.7 nationally. Among Calhoun County residents living with HIV, 40% are in care · 40% are virally suppressed. Early, routine testing is what moves these numbers: it is the entry point to PrEP, treatment, and viral suppression.
Sources: AIDSVu (Emory/Gilead) · CDC AHEAD · CDC AtlasPlus · CDC NCHHSTP AtlasPlus (county care continuum). The CDC recommends everyone aged 13–64 test for HIV at least once: every lab and clinic listed above offers HIV testing, and free rapid HIV testing is available at a local health department.
Congenital syphilis, passed from parent to baby in pregnancy, is the fastest-rising STI in the country. U.S. cases climbed from 2,163 in 2020 to 3,882 in 2023. It is almost entirely preventable: the CDC recommends a syphilis test at the first prenatal visit, and every clinic and lab listed for Calhoun County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Brussels moves to its own calendar. The Illinois River shapes the work: barge operators and commercial fishermen know their seasons, farmers track weather windows, and those who service the equipment or supply the docks keep pace with the rhythms around them. Young adults in the area, many in their late teens through their thirties, often juggle these rhythms with their own routines: starting jobs, moving between towns, or settling into new chapters. That's precisely when knowing your STI status, quietly and without fanfare, fits into real life rather than against it.
Confidential STI screening is available in and around Brussels through the clinics and providers listed on this page. The geography here means you're not far from services, whether you're near Knolle Hill or working closer to IL 100. What matters most is that you can get tested without the result rippling through a place where people recognize faces. The test itself takes a morning or an afternoon; results come back to you alone, not posted, not shared with employers or schools, not flagged anywhere else.
If you're sexually active (whether in a new relationship, between partners, or as part of routine care) screening catches infections early and keeps them from becoming complicated. Local providers understand that showing up for a test is an act of self-respect, not shame, and they treat it that way.
Getting there
At 3.93/20 on the EPA walkability index, day-to-day errands in Brussels generally mean driving: plan on a car or rideshare to reach a clinic, and check each listing's hours and phone before you go.
Source: EPA National Walkability Index 2021.
ZIP 62013 snapshot
ZIP-level Census figures for the wider 62013 area around Brussels: a single ZIP can span several communities, so they describe the area, not Brussels alone.
Brussels sits in Calhoun County, ZIP 62013. Local context that shapes where residents test:
Local landmarks
Major routes
Nearby cities & towns
Just outside Brussels? These nearby communities have their own testing guides: clinics, at-home kits, and free screening close to home.
Reference
Everything to know before you test in Calhoun County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under Illinois law. If you have symptoms right now, our confidential symptom checker maps them to the tests worth considering.
Based on current CDC screening recommendations.
| Group | Tests | How often |
|---|---|---|
| Everyone aged 13–64 | HIV | At least once |
| Sexually active women under 25 | Chlamydia, gonorrhea | Every year |
| Women 25+ with new or multiple partners | Chlamydia, gonorrhea | Every year |
| Pregnant people | HIV, syphilis, hepatitis B & C, chlamydia | Early in pregnancy |
| Gay & bisexual men (MSM) | Chlamydia, gonorrhea, syphilis, HIV | Every 3–6 months |
| Anyone who shares injection equipment | HIV, hepatitis B & C | At least yearly |
| All adults at least once | Hepatitis C | At least once |
Testing too early can return a false negative, confirm timing with a Brussels-area provider.
| Infection | Earliest reliable test | Sample |
|---|---|---|
| Chlamydia | 1–2 weeks | Urine or swab |
| Gonorrhea | 1–2 weeks | Urine or swab |
| Trichomoniasis | 1–4 weeks | Urine or swab |
| HIV (NAT / RNA) | 10–33 days | Blood |
| HIV (4th-gen Ag/Ab) | 18–45 days | Blood |
| HIV (antibody) | 3–12 weeks | Blood / oral |
| Syphilis | 3–6 weeks | Blood |
| Hepatitis B | 3–6 weeks | Blood |
| Hepatitis C | 8–11 weeks | Blood |
| Herpes (HSV) | 4–16 weeks (antibody); swab a sore | Blood / swab |
These are the federal Medicare reference prices for processing each lab test. Public clinics and the community health centers serving Brussels often test free or on a sliding scale; private labs and at-home kits bundle several tests into one fee. Use this as a per-test benchmark before you pay out of pocket, or see the full guide to STD test costs for insurance, free, and at-home options.
| Test | Reference price | CPT / HCPCS |
|---|---|---|
| Chlamydia (NAAT) | $47.80 | 87491 |
| Gonorrhea (NAAT) | $47.80 | 87591 |
| Trichomoniasis (NAAT) | $47.76 | 87661 |
| HIV-1/2 antigen/antibody | $26.87 | 87389 |
| HIV-1/2 antibody | $22.44 | 86703 |
| Syphilis (RPR/VDRL) | $5.61 | 86592 |
| Syphilis (treponemal antibody) | $17.49 | 86780 |
| Herpes (HSV NAAT) | $47.76 | 87529 |
| Hepatitis B surface antigen | $15.33 | 87340 |
| Hepatitis C antibody | $29.16 | 86803 |
Source: Medicare Clinical Laboratory Fee Schedule, CMS, 2025 rates (data.cms.gov). Reference rate for the lab assay only: a clinic visit, sample collection, or a bundled multi-test panel may cost more. Medicaid and most insurers cover STD screening at no out-of-pocket cost.
Two things that actually depend on Illinois law: who can consent, and whether partners can be treated without their own visit. Everything else about testing privately is the same nationwide (see below).
In Illinois, a minor aged 12 or older can consent to confidential STI testing and treatment on their own, no parental permission is required.
Illinois permits Expedited Partner Therapy (EPT): if you test positive for chlamydia or gonorrhea, your provider can give you medication (or a prescription) to pass to your partner, no separate exam or appointment needed for them.
Keeping a test private works the same in every state. Whether an STD test shows on insurance (the EOB), how to test anonymously, and self-pay options that leave no insurance trail don’t change by location.
Learn more about confidential STD testing in IllinoisSource: Guttmacher Institute, Minors' Access to STI Services; CDC, Legal Status of Expedited Partner Therapy. General information, not legal advice.
Good to Know
Answers to the questions people ask most before getting tested.
The closest is Mercy (9 mi); 7 options are within 30 miles.
Public clinics are free; private labs ~$24–$139, at-home kits $49+.
Yes, public clinics in the area offer free or low-cost testing.
Local options test for Chlamydia, Gonorrhea, Syphilis, Herpes, Hepatitis A, Hepatitis B, Hepatitis C, Rapid HIV, a full panel covers the common ones.
About 70 cases per 100,000 residents (2023), below the Illinois average.
In Illinois, people under 18 can consent to confidential STD testing and treatment on their own.
A full panel typically covers chlamydia, gonorrhea, syphilis, HIV, and hepatitis B and C.
It's curable with antibiotics; catching it early avoids serious complications.
A retest around 3 months after treatment is recommended for chlamydia and gonorrhea.
Yes, pelvic or lower-belly pain can be a sign of untreated chlamydia or gonorrhea spreading, so see a provider and test.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.