HIV & STI Statistics

STI & HIV Cases Reported in Washtenaw County Residents 2012 to 2023

STI / HIV
2012 2013 2014 2015 2016 2017
2018 2019 2020 2021 2022* 2023*
Chlamydia 1426 1368 1437 1643 1773 1701 1718 1785 1563 1464 1371 772
Gonorrhea 297
227
265
338
423
560
522 562 625 533 439 230
Syphilis (Total)  21
39
42
52
49 43 53 74 60 72 113 85
Syphilis
(Primary & Secondary)
9 22 24 27 17 27 25 24 30 35 41 19
HIV (Newly diagnosed) (2) 24 33 28 27 27 15 29 N/A N/A N/A N/A N/A

Data Source: Washtenaw County Health Department and Michigan Disease Surveillance System

1. Syphilis (Total) includes Primary & Secondary, Congenital, and Latent disease
2. Includes confidential and anonymous cases; HIV cases exclude persons in prison

*Number of cases reported as of 10/2/2023. Reports from 2022 and 2023 are preliminary and subject to change.

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