Michigan Hepatitis A Outbreak

Posted on September 24, 2019 by

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Michigan Hepatitis A Outbreak

Woman receiving vaccinationPublic health officials and the Michigan Department of Health and Human Services (MDHHS) are continuing to see an elevated number of hepatitis A cases in the state.

Since the beginning of the outbreak in August 2016, public health response has included increased healthcare awareness efforts, public notification and education, and outreach with vaccination clinics for high-risk populations.No common sources of food, beverages, or drugs have been identified as a potential source of infection. Transmission appears to be through direct person-to-person spread and illicit drug use. Those with history of injection and non-injection drug use, homelessness or transient housing, and incarceration are thought to be at greater risk in this outbreak setting. Notably, this outbreak has had a high hospitalization rate.
Michigan Hepatitis A Outbreak Cases and Deaths as of September 11, 2019*
*Table will be updated weekly by 4:00pm each Friday

Cases Hospitalizations Deaths
920 738 (80.2%) 30 (3.3%)

Please note: Table does not include all reported hepatitis A cases in the outbreak region; only those cases that are identified as outbreak-related. More descriptive data on the current outbreak can be found within the Comprehensive Summary.  Data are provisional and subject to change.

 

 Confirmed Cases Referred August 1, 2016 – September 11, 2019
Meeting the MI Hepatitis A Outbreak Case Definition
 County (or city) Total Cases  County (or city) Total Cases
 Cass 2  Saginaw 5
 Macomb† 223  Gratiot† 3
 City of Detroit† 173  Midland 3
 Wayne† 164  Allegan† 2
 Oakland† 120  Mecosta† 2
 St. Clair† 33  Bay† 1
 Ingham 30  Charlevoix† 1
 Genesee 28  Clare† 1
 Shiawassee† 22  Hillsdale† 1
 Washtenaw† 20  Huron† 1
 Monroe† 18  Ionia† 1
 Calhoun† 10  Leelanau† 1
 Isabella† 8  Lenawee† 1
 Lapeer† 7  Missaukee† 1
 Clinton† 6  Newaygo 1
 Livingston† 6  Schoolcraft 1
 Sanilac† 6  St Joseph 1
 Eaton 6  Van Buren 1
 Grand Traverse 4  Other* 2
 Kent 4
† Indicates no confirmed case in the past 100 days

*Jackson Michigan Department of Corrections

Indicates counties with outbreak-associated cases that are not currently included in the outbreak jurisdiction


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