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Wisconsin Department of Health Services

Communicable  Diseases Subjects A-Z



Sexually Transmitted Diseases


Disease Reporting

Hepatitis A virus infection 

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General information
Hepatitis A (formerly known as infectious hepatitis) is a liver disease caused by the hepatitis A virus. The disease is not uncommon; approximately 30-40 cases are reported each year in Wisconsin. Hepatitis A is still very common in developing countries. Unlike hepatitis B and hepatitis C, hepatitis A does not result in a chronic infection, nor is it associated with liver cancer

The hepatitis A virus enters through the mouth, multiplies in the body, and is passed in the stool, which becomes highly infectious. If careful handwashing with soap is not done, the virus can then be carried on an infected person's hands. From there, the virus can be spread to others by direct contact or by consuming food or drink that has been handled by that infected individual. In some cases, it can be spread by consuming water contaminated with sewage. Because the virus is passed in the stool, children with hepatitis Are who are not toilet trained can be an important source of the infection.

A highly effective vaccine is available to prevent hepatitis A.

Viral hepatitis home 

Food Poisoning Home 

Hepatitis A fact sheet
Hand washing fact sheet  
Food handling and housekeeping   
CDC Hepatitis A

Information for health professionals

This is a Wisconsin Disease Surveillance Category I disease:
Report IMMEDIATELY by TELEPHONE to the patient's local public health department upon identification of a confirmed or suspected case. The local health department shall then notify the state epidemiologist immediately of any confirmed or suspected cases. Submit a case report within 24 hours submit a case report electronically through the Wisconsin Electronic Surveillance System (WEDSS), by mail or fax using an Acute and Communicable Disease Case Report F44151 or by other means. 
Information on Communicable Disease Reporting

Wisconsin case reporting & public health follow-up guidelines: Hepatitis A EpiNet 
Viral hepatitis case report form
Handbook for Public Health Personnel: Hepatitis A
CDC Hepatitis A information for health professionals       


Wisconsin Local Health Departments - Regional offices - Tribal agencies

Jim Kazmierczak  DVM, WI State Public Health Veterinarian
Wisconsin Division of Public Health 
Bureau of Communicable Diseases and Emergency Response
(Phone 608-266-2154)  (Fax 608-261-4976)

Thomas Haupt  Influenza Coordinator
Wisconsin Division of Public Health 
Bureau of Communicable Diseases and Emergency Response
(Phone 608-266-5326)  (Fax 608-261-4976)

Last Revised: March 25, 2014