Sexually Transmitted Disease Program

Humboldt County Syphilis Cases by year: increase from 4 cases in 2010 to 49 cases in 2017

Syphilis cases are on the rise, and health officials are encouraging anyone who may be at risk to get tested.

Congenital syphilis is a disease that occurs when a mother with syphilis passes the infection on to her baby during pregnancy. In the past 2 years, Humboldt County has had three cases of congenital syphilis after having no cases for more than 10 years. Congenital syphilis can lead to low birth weight, premature birth, birth defects, miscarriage or stillbirth or death shortly after birth.

STD Program
The Public Health Sexually Transmitted Disease (STD) program works together with local health care partners, county residents and other organizations to help keep residents healthy and safe from STDs. Most STDs do not have symptoms. The STD program is designed to help reduce and manage the spread of infectious diseases by locating and interviewing contacts to diagnose cases of select STDs and to ensure that appropriate follow-up care and treatment are provided.

Tell a partner
Need to tell your partner that they have been exposed to an STD, but want to stay anonymous? Public Health’s Communicable Disease staff can contact your partner.
Call 707-268-2182 and ask to speak to a Communicable Disease Nurse. You can also visit to send an anonymous email or text to let your partner know they should get tested.

The Public Health Adult Health Clinic is currently closed, as staff is assigned to the COVID-19 efforts. If you think you have been exposed to an STD, call the Public Health Clinic at 707-268-2108 to talk about testing options or contact one of the providers listed below. 

Other Testing Options

Planned Parenthood

Open Door Community Health Centers
707-269-7073 (for members services to establish care)

HSU Student Health & Wellbeing Services (for HSU students only)

You can also learn more about Prep which is a once-a-day pill that is effective in preventing HIV. Visit for more information.