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SexuallyTransmittedDisease(STD)

Who we are

The Sexually Transmitted Disease (STD) program focuses on preventing new infections. We strive to educate and inform the community and serve as a resource for providers in our area.

What we do

STDs, such as chlamydia, gonorrhea, and syphilis can have bad health consequences, especially for women. STDs can also have serious ill effects for both a pregnant mother and her developing baby. Left untreated, STDs can cause: increased risk of giving or getting HIV; long-term pelvic/abdominal pain; inability to get pregnant or pregnancy complications.

The STD program within Public Health focuses on monitoring, investigating and educating the community on prevention methods and ways to decrease STDs in Stanislaus County.

Spotlight on congenital syphilis

Untreated syphilis can be transmitted from mother to child in utero, leading to congenital syphilis, which can cause severe illness, including death. Since 2012, there has a been a dramatic increase in congenital syphilis in California, and in particular, the San Joaquin Valley region. Stanislaus County has also been greatly impacted by increasing syphilis and congenital syphilis in the community.

CongenitalSyphilisIs:

What We Offer

  • Syphilis Treatment (by referral only)
  • Technical Assistance to providers in the community
  • Education and outreach presentations

Services Times

Syphilis treatment is done by appointment with a provider referral.

Technical Assistance is available Monday – Friday from 8:00 AM to 5:00 PM.

Education and outreach presentations are done by appointment by calling or sending us an email.


Click here for HIV resources.

Contact Information


Sexual Health Clinic:
830 Scenic Drive Suite C
Modesto, CA 95350

Contact Us:
Phone: (209) 558-7356
Fax: (209) 558-4905
Email: gro.ashcs@ofnidts

Hours of Operation:
Monday - Friday
8AM - 5PM
By Appointment only for CARE/ADAP Programs and syphilis treatment

*Last registration for walk-in clients is 30 minutes before closing - no exceptions.

Payment is required at time of service. Medi-Cal, Family PACT, Cash, Credit Cards, and ATM accepted.