Viral Hepatitis

Hepatitis is defined as an inflammation of the liver. Hepatitis is commonly caused by a virus. The most common types are Hepatitis A, Hepatitis B, and Hepatitis C. There are two other types, Hepatitis D and Hepatitis E, which are more common in other countries. To learn more about Hepatitis, see RESOURCES in the right-hand column. For data and statistics specific to Hepatitis, see IQuery and/or under RESOURCES in the right-hand column.
Viral hepatitis is the leading cause of liver cancer and the most common reason for liver transplantation. An estimated 4.4 million Americans are living with chronic hepatitis but most do not know that they are infected.

There are vaccines available for Hepatitis A and Hepatitis B. For more information about Viral Hepatitis Vaccines, see the Immunization under RESOURCES in the right-hand column. 

Hepatitis A Outbreaks in the United States

During 2017, several large Hepatitis A outbreaks have occurred in the US, most widely known in California and Utah.  The population primarily affected have been homeless persons with injection and non-injection drug using risk factors.  On October 26, 2017, IDPH sent a memo to local health departments and medical and service providers to homeless populations encouraging testing, reporting, and vaccination of populations at risk for Hepatitis A.