Imported fresh-frozen blood clams, also known as concha negra, linked to disease outbreak

Connecticut Department of Public Health (DPH) Commissioner Manisha Juthani, M.D. today issued the following statement urging Connecticut residents to be aware of a hepatitis A outbreak investigation in New York state linked to contaminated shellfish, and to take common-sense precautions when consuming…

Though having slowed in recent months, several recent widespread hepatitis A outbreaks have affected states across the country, including long-term outbreaks in California and Michigan, and more recently Utah, Colorado and Kentucky. These cases have occurred primarily among persons who are experiencing homelessness, persons who use injection and non-injection drugs, and their close direct contacts.

The Los Angeles County Department of Public Health is investigating a report of hepatitis A virus infection in an employee of Tam O’Shanter Restaurant at 2980 Los Feliz Boulevard in the City of Los Angeles. No additional cases have been identified, and the investigation is ongoing.

Possible Exposures and Vaccine to Reduce Risk

Because the…

The Los Angeles County Department of Public Health declared a communitywide outbreak of hepatitis A virus infections in Los Angeles residents in May 2025. The infection is caused by the hepatitis A virus, which is found in the stool of those who are infected. HAV is contagious through the fecal-oral route and spreads through close…

Exposure to the hepatitis A virus (HAV) can lead to an acute liver infection that is typically mild and self-resolving. The symptoms and duration of illness can vary widely, with many individuals showing no symptoms at all. The most commonly associated symptoms of HAV infection include fever and jaundice.


Throughout history, hepatitis infections have…

The Los Angeles County Department of Public Health has declared a community-wide outbreak of hepatitis A following a sustained increase in clinical cases and elevated virus levels detected in local wastewater. Public Health confirmed 165 hepatitis A cases in LA County in 2024, which is three times the number of cases reported in 2023. Although…

The Nassau County Department of Health is announcing a confirmed case of Hepatitis A virus in a food handler who worked at Jersey Mike’s Subs, located at 24 Atlantic Avenue, Oceanside. Patrons who consumed foods and drinks prepared on-site, or used the restrooms, between April 5, 2025, and April 19, 2025, may have been exposed…

According to Alaina Walsh of the Daily Cardinal, the University of Wisconsin-Madison’s University Health Services (UHS) sent out an email to 4,000 students and staff Friday afternoon regarding a potential hepatitis A exposure linked to campus dining facility Rheta’s Market. 

UHS identified a case of hepatitis A in a student who worked in food service…