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Frozen Scallops Linked to Hawai‘i’s Hep A Outbreak

August 16, 2016, 9:46 AM HST
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Hepatitis virons. Author: Dr. Erskine Palmer, USCDCP

Hepatitis virons. Author:
Dr. Erskine Palmer, USCDCP

The Hawai‘i State Department of Health has identified a strong association between a majority of the cases in the hepatitis A outbreak first announced by the department on July 1, 2016, based on evidence gathered and analyzed during an extensive investigation spanning almost two months.

Investigation findings implicate frozen imported scallops served raw at Genki Sushi Restaurants as the likely source of hepatitis A infection.

“After determining the strong probable link between the majority of cases, the department immediately notified Genki Sushi Restaurants, ordered the embargo of the frozen scallop product, and the closure of all O‘ahu and Kaua‘i facilities,” said Health Director Dr. Virginia Pressler. “The business has complied with all orders, contacted all of their Hawai‘i restaurants, and is working with the department to ensure the safety of its customers. Our staff is in the field today working with distributors to embargo the product.”

Department of Health has ordered the embargo of all frozen scallop products distributed by Koha Oriental Foods and True World Foods in Hawai‘i. An embargo of products restricts their use, sale or distribution.

Because Genki Sushi Restaurants on O‘ahu and Kaua‘i had received, handled and served the product, the establishments were ordered to close immediately. Koha Oriental Foods had supplied the product to Genki Sushi Restaurants on those islands.

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The frozen imported scallop product recently began to be distributed also by True World to Genki Sushi restaurants on Maui and Hawai‘i Island.

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Although there have been no cases related to these recent shipments, given the uncertainty of the safety of the product, all scallop products sent to these restaurants were embargoed as the department continues its investigation.

“Genki Sushi in Hawai‘i has a history of good compliance with food safety regulations, which includes good employee hygiene,” said Peter Oshiro, sanitation branch chief. “We will continue to work with Genki Sushi Restaurants to ensure their safe operation after the investigation is completed.”

Product tracing is being conducted to locate all potentially contaminated products. DOH has also been in contact with the US Food and Drug Administration Hawai‘i office to investigate the product origin. Food products imported from outside the state are regulated by the US FDA.

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“We are gratified to uncover this major piece of the investigation,” said State Epidemiologist Dr. Sarah Park. “My staff have been persistent and tireless in their search for clues to prevent new cases and put an end to the outbreak. Our investigation continues, as we work to confirm our findings and ensure contaminated product is no longer in circulation and the risk of transmission is eliminated.”

Genki Sushi Restaurants on O‘ahu and Kaua‘i will remain closed until the DOH can ensure their safe operation. All frozen scallop products from distributors Koha Oriental Foods and True World Foods are being restricted and will be destroyed to prevent any further illness.

Anyone who consumed products, specifically scallops, prepared or served at Genki Sushi on O‘ahu or Kaua‘i should consider contacting their healthcare provider about the possibility of receiving a vaccine or immune globulin (IG).

A statewide list of vaccination locations is available at www.health.hawaii.gov. Individuals who ate at these restaurants longer than two weeks ago should monitor their health for 50 days after their exposure and consult their doctor if they develop symptoms of hepatitis. All persons should practice thorough hand washing.

 

Hepatitis virons. Author:
Dr. Erskine Palmer, USCDCP

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