What to know
CDC, the US Food and Drug Administration (FDA), and public health officials in several jurisdictions are investigating a multistate hepatitis A outbreak potentially linked to imported frozen clams. The outbreak investigation is ongoing. During July 2025 – May 2026, a foodborne hepatitis A outbreak has impacted people in three states: Minnesota, New York, and Pennsylvania.
Where people got sick
The map below shows where people impacted by this outbreak live. The outbreak might not be limited to just the states listed below, since some people recover without medical care and are not tested for hepatitis A.
Outbreak-associated cases, by state of residence, as of June 4, 2026 (n=30).
Content Source:
Division of Viral Hepatitis