SEXUALLY TRANSMITTED DISEASES CONTROL BRANCH
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Syphilis
Syphilis is a sexually transmitted infection (STI) caused by the bacterium Treponema pallidum. Untreated infection can lead to long-term health problems, including brain disease. Syphilis increases both transmission and acquisition of HIV. Tests and treatment are available.
Resources for Providers
- California Department of Public Health (CDPH) Updates Syphilis Screening Recommendations
- CDC Clinical Guidelines on the Use of Doxycycline Postexposure Prophylaxis for Bacterial Sexually Transmitted Infection Prevention, United States, 2024
- Considerations for the Implementation of Point of Care Tests for Syphilis (PDF) (hhs.gov)
- Clinical Interpretation of Syphilis Screening Algorithms (PDF)(californiaptc.com)
- *NEW* CDPH Dear Colleague Letter - Powdered Benzathine Benzylpenicillin (Extencilline®) for the Treatment of Syphilis (1/26/24) (PDF)
- Pregnancy and Substance Use: A Harm Reduction Toolkit
- *NEW* CDPH Dear Colleague Letter - Special Considerations for the Treatment of Syphilis Using Alternative Therapies in Non-pregnant Persons (9/12/23) (PDF)
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Health Advisory: Bicillin® L-A (Benzathine Penicillin G) Shortage
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Syphilis Treatment Intervals in Non-Pregnant Patients: A Clinical Resource for Providers (PDF)
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CDPH Dear Colleague Letter - Opt-Out ED Screening for HIV, HCV, and Syphilis (3/28/22) (PDF)
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CDPH Dear Colleague Letter - Call to Expand HIV and Syphilis Testing for Pregnant Women (11/16/21) (PDF)
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Health Alert: Increasing Cases of Congenital Syphilis and Syphilis Among Females in Northern California (Oct. 2021) (PDF)
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Screening for Syphilis in Emergency Departments Resource Guide (PDF)
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Rapid Syphilis Testing Fact Sheet & FAQs (PDF)
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Syphilis Treatment Guidelines, 2021 (CDC)
- Neurosyphilis Guide (PDF)
- Use of Treponemal Immunoassays for the Screening and Diagnosis of Syphilis: Guidance for Medical Providers and Laboratories in California (PDF)**
Resources for Local Health Jurisdictions
Resources for the Public
- Syphilis Fact Sheet (CDC) [English] [Spanish]
- Syphilis and Men Who Have Sex with Men (MSM) Fact Sheet (CDC) [English] [Spanish]
- Free STD Retest Reminders for Patients
- STD Test Sites
- Teen-Friendly STD Information and Health Clinics
- Condom Access for Teens
- Assess Your Risk for STDs
- PrEP Locator
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