Skip to main content

MDHHS sees promising three-year decline in infectious syphilis cases across Michigan

LANSING, Mich. – The Michigan Department of Health and Human Services (MDHHS) has recorded a sustained decrease in infectious syphilis diagnoses in Michigan residents over the past three years, representing a 29% decline in reported cases overall since 2021. These downward trends are also seen through the first half of 2025, with Wayne, Oakland and Macomb counties experiencing the most significant declines in syphilis rates.

This promising news reflects progress made in recent years. However, Michigan’s overall syphilis rates remain historically high compared to a decade ago. Nationally and in Michigan, rates rose sharply between 2014 and 2021. While syphilis continues to pose a significant public health challenge, the most recent data suggest the state may be turning a corner.

“We are encouraged to see the significant progress Michigan has made in reducing syphilis rates through strong partnerships, innovative public health strategies and expanded access to prevention and treatment,” said Dr. Natasha Bagdasarian, chief medical executive. “But these numbers also highlight the continued urgency of our work, especially around congenital syphilis. Every case represents an opportunity to do more, and we remain committed to protecting the health of all Michiganders.”

A recent Centers for Disease Control and Prevention (CDC) analysis indicated that while 62% of congenital syphilis cases were averted by public health action nationally, in Michigan 71% of cases were averted.

MDHHS attributes this success to its partners across the state. Clinicians in local health departments and other health care settings, along with community-based organizations, social services agencies, correctional facilities, pharmacies and others have aided significantly in increasing testing, treatment adherence and patient education.

MDHHS has invested in rapid syphilis testing, media campaigns, provider outreach and education, enhanced partner services and follow-up for women of child-bearing age with syphilis, as well as biomedical interventions such as doxycycline post-exposure prophylaxis. These public health investments have helped build awareness related to prevention and treatment.

Although encouraged by these decreases, there are still areas for concern. Increases have occurred in some areas outside Southeast Michigan and females have seen less of a decrease in cases than males. While overall infectious syphilis cases have declined, reported cases of congenital syphilis have not. Since 2021, congenital syphilis cases have increased 38%, leveling off in recent years with 55 births in 2023, 58 in 2024 and an expected 50-60 births in 2025. 

More information, including syphilis trend data, is available at Michigan.gov/HIVSTI

# # #

 

Media Contact: