About Hepatitis

From the nation’s leading law firm representing victims of Salmonella and other foodborne illness outbreaks.

Chapter 10

Outbreaks of Hepatitis A

In recent years, hepatitis A outbreaks have occurred from several different sources:

  • Foodborne transmission through ingestion of contaminated food; and
  • Person-to-person transmission through close contact with an infected person, most recently, among people who use drugs, people experiencing homelessness, and men who have sex with men.

While the average number of HAV infections reported to the CDC in recent years has declined substantially compared to 2000, fluctuations have occurred in the last 20 years due to large outbreaks. After a long downward trend, the first increase between 2012 and 2013 (1,562 and 1,781 reported cases, respectively) was due to a large multi-state outbreak associated with pomegranate arils imported from Turkey. Between 2015 and 2016, the reported cases again increased by 44.4% from 1,390 in 2015 to 2,007 cases in 2016. The 2016 increase was due to two hepatitis A outbreaks, each of which was linked to imported foods. Substantial increases in incident cases of hepatitis A occurred in 2017 and 2018 (3,366 and 12,474 reported cases, respectively) due to ongoing outbreaks reported to the CDC among people who use drugs and people experiencing homelessness, as well as outbreaks among men who have sex with men.

Past Hepatitis A Outbreaks:

Frozen Berry Hepatitis A Outbreak

Frozen Scallop Hepatitis A Outbreak

Fresh Blackberry Hepatitis A Outbreak

Past Hepatitis Outbreaks

Previous Chapter

How to Prevent Hepatitis A Infection

Next Chapter


Related Blog Articles

The Botulism blog supplements this Marler Clark website About Cyclospora | Subscribe

Connect with Marler Clark


1012 First Avenue
Fifth Floor
Seattle, WA 98104


M-F, 8:30 am - 5:00 pm, Pacific

Call toll free:

1 (800) 884-9840

If you have questions about foodborne illness, your rights or the legal process, we’d be happy to answer them for you.