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 April 18, 2018*
*Table will be updated weekly by 4:00pm each Friday





657 (80.6%)

25 (3.1%)

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-April 18, 2018
Meeting the MI Hepatitis A Outbreak Case Definition

 County (or city)

Total Cases


 County (or city)

Total Cases






 City of Detroit








 Grand Traverse







 St. Clair





















































 Van Buren











 *Jackson Michigan Department of Corrections

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

Counties with multiple outbreak-associated cases that have not had a confirmed case referral in the past 100 days

Hepatitis A Overview

Hepatitis A is a serious, highly contagious liver disease caused by the hepatitis A virus (HAV). HAV is found in the feces (poop) of people with hepatitis A. You can get hepatitis A by eating contaminated food or water, during sex, or just by living with an infected person. Illness can appear 15-50 days after exposure and you can be sick for several weeks. In some cases, people can die. Although not all people infected with hepatitis A experience illness, symptoms can include:

  • Jaundicenausea and vomiting
  • belly pain
  • feeling tired
  • fever
  • loss of appetite
  • yellowing of the skin and eyes
  • dark urine
  • pale-colored feces (poop)
  • joint pain

There are steps you can take to reduce the risk of Hepatitis A transmission. Hepatitis A is a vaccine-preventable illness. While the hepatitis A vaccine is recommended as a part of the routine childhood vaccination schedule, most adults have not been vaccinated and may be susceptible to the hepatitis A virus. The best way to reduce the risk of getting hepatitis A is to get vaccinated with two doses of Hepatitis A vaccine. It is also recommended to wash your hands after going to the bathroom and before preparing meals for yourself and others. Use your own towels, toothbrushes, and eating utensils. Do not have sex with someone who has HAV infection or share food, drinks, or smokes with other people.

What can the public do to protect themselves and their communities?

  • Get vaccinated against hepatitis AHandwashing
  • Wash hands after using the restroom and before eating or preparing meals for yourself or others
  • Use your own towels, toothbrushes, and eating utensils
  • Do not have sex with someone who has HAV infection
  • Do not share food, drinks, drugs, or smokes with other people
  • If you think you may have hepatitis A, see your medical provider
  • If you have hepatitis A, please cooperate with your local public health to help protect others

Vaccination Information

Hepatitis A can be prevented with a safe and effective vaccine. Stop the spread of this infection.

Who Should Get the HAV Vaccine?

  • Persons who are homeless.
  • Persons who are incarcerated.
  • Persons who use injection and non-injection illegal drugs.
  • Persons who work with the high risk populations listed above.
  • Persons who have close contact, care for, or live with someone who has HAV.
  • Persons who have sexual activities with someone who has HAV.
  • Men who have sex with men.
  • Travelers to countries with high or medium rates of HAV.
  • Persons with chronic liver disease, such as cirrhosis, hepatitis B, or hepatitis C.*
  • Persons with clotting factor disorders.

*Note: individuals with chronic liver disease (e.g., cirrhosis and hepatitis C) may not be at increased risk of getting HAV infections but are at increased risk of having poor outcomes if they are infected with HAV.

For information on where to get vaccinated:

Protect Yourself and Get Vaccinated Against Hepatitis A: Find a Local Clinic Near You Today - Hep A Clinic Calendar

If you (or someone you know) do not have health insurance, you will likely qualify for free or low cost vaccines. Talk with your local health department to find out if you qualify.

 Barry Eaton District Health Department
 Eaton Phone: 517-541-2630

 Macomb County Health Department
 Phone: 586-469-5372

 Calhoun County Public Health Department
 Phone: 269-969-6370

 Mid-Michigan District Health Department
 Clinton Phone: 989-224-2195

 Central Michigan District Health Department
 Isabella Phone: 989-773-5921

 Monroe County Health Department
 Phone: 734-240-7800

 Detroit Health Department
 Phone: 313-876-4000

 Oakland County Health Division
 Phone: 800-848-5533 or Email: noc@oakgov.com

 District Health Department #10
 Mecosta Phone: 231-592-0130

 St. Clair County Health Department
 Phone: 810-987-5300

 Genesee County Health Department
 Phone: 810-257-3048

 Saginaw County Department of Public Health
 Phone: 989-758-3800

 Grand Traverse County Health Department
 Phone: 231-995-6100

 Sanilac County Health Department
 Phone: 810-648-4098

 Ingham County Health Department
 Phone: 517-887-4311

 Shiawassee County Health Department
 Phone: 989-743-2318

 Lapeer County Health Department 
 Phone: 810-667-0448

 Washtenaw County Public Health
 Phone: 734-544-6700

 Livingston County Health Department 
 Phone: 517-546-9850

 Wayne County Department of Health, Veterans & Community Wellness  
 Phone: 734-727-7078

For additional local health department information, contact the MDHHS Division of Immunization at 517-335-8159. Local health department contact information is also available on the Michigan Association for Local Public Health website.