November 26, 2014

DNA Fingerprinting and the Tuna Sushi Salmonella Outbreak

Sushi

The tuna sushi Salmonella outbreak now includes 200 people from 21 states and the District of Columbia, to find out how those illnesses were related, scientists used DNA fingerprinting. Since 1996, PulseNet, a nationwide network of 87 laboratories, has worked together to identify and unravel foodborne illness outbreaks by posting the DNA fingerprints of pathogens that have caused confirmed cases of illness on a shared database. “PulseNet has been a tremendously valuable tool for detecting outbreaks over the years,” said David Warshauer, deputy director of communicable disease at the Wisconsin State Laboratory of Hygiene, the lab that established the link between the tainted tuna and the outbreak patients. “For example, in this case we saw a cluster of Salmonella Bareilly and a … [Read more...]

It’s A Match: Wisconsin Links Recalled Tuna To Outbreak Strain

Sushirolls

The Salmonella Bareilly outbreak strain that has sickened at least 160 people in 20 states and the District of Columbia is a genetic match to the strain found in recalled tuna produced by Moon Marine USA Corp., Wisconsin health officials announced today. The Wisconsin Department of Agriculture Trade and Consumer Protection (DATCP) and the Wisconsin State Laboratory of Hygiene (WSLH) worked together to find the match that establishes the tainted tuna as the source of the outbreak. DATCP found Salmonella Bareilly in a sample of the recalled tuna and in a sample from a spicy tuna roll made with the recalled tuna and sent isolates of the strain to WSLH in Madison where health officials used Pulsed Field Gel Electrophoresis (PFGE) to find its genetic fingerprint. "What we do is take … [Read more...]

For Some Wisconsin Grocery Store Sushi Bars, It’s Business As Usual

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At Grasch Foods, an upscale grocery store in Brookfield Wis., the tuna Salmonella outbreak caused a minor blip in sushi bar sales and then things went right back to normal, according to Seafood Manger, John Edgerton. Grasch buys only fresh fish for the sushi bar and Edgerton does most of the processing himself, he said, so the store was not among those affected by the recall of tainted  ground frozen tuna product, called Nakaochi Scrape, from Moon Marine USA Corp. in California. With 14 confirmed cases of salmonellosis, Wisconsin was hit hard by the tuna sushi Salmonella outbreak, which has sickened 160 people in 20 states and the District of Columbia, according to the latest update from the Centers for Disease Control and Prevention (CDC). The only states with more confirmed … [Read more...]

Now 141 Sickened; Raw Nakaochi Scrape Tuna Salmonella Outbreak Update

Sushibento

The CDC has just updated the investigation into the Salmonella Bareilly outbreak associated with raw Nakaochi Scrape raw tuna imported by Moon Marine USA Corporation. Now 141 people are ill and 21 of them have been hospitalized. This is the case count:Alabama (2)Arkansas (1)Connecticut (6)District of Columbia (2)Florida (1)Georgia (6)Illinois (13)Louisiana (3)Maryland (14)Massachusetts (9)Mississippi (2)Missouri (4)New Jersey (8)New York (28)North Carolina (2)Pennsylvania (6)Rhode Island (5)South Carolina (3)Texas (4)Virginia (8)Wisconsin (14) The 25 new cases are from: Connecticut (1), Georgia (1), Illinois (3), Louisiana (1), Maryland (3), Massachusetts (1), Mississippi (1), Missouri (2), New Jersey (1), New York (4), Pennsylvania (1), Virginia (3), Texas (1), and Wisconsin … [Read more...]

Update on the Salmonella Outbreak Linked to Nakaochi Scrape

Sushibento

The CDC has released more details about their investigation into the Salmonella Bareilly outbreak that has sickened 116 people in 20 states and the District of Columbia. Nakaochi Scrape, which is tuna scraped from the bone and chopped, from Moon Marine USA Corporation is "the likely source of this outbreak of Salmonella Bareilly infections", according to the government. The CDC interviewed 53 of the patients about what they ate the week before they got sick. Forty-three of them (81%) reported eating sushi. This proportion is significantly higher than indicated in a FoodNet Survey conducted by the CDC for the years 2006 to 2007. In that report, on page 20, 5.3% of healthy adults reported consuming sushi in the past seven days. Of those 43 people, 39, or 91%, reported eating a sushi … [Read more...]

Tuna Sushi Salmonella Outbreak: Tracking The Source

Raw Scraped Tuna

The months-long search for the origin of the multi-state Salmonella outbreak ended yesterday with the U.S. Food and Drug Administration’s (FDA) announcement that frozen, raw, yellowfin tuna product from Moon Marine USA Corporation of Cupertino, Calif. is the source of the outbreak. State and federal investigators have been working since January to identify the source of the Salmonella Bareillyoutbreak that has sickened at least 116 people in 20 states and the District of Columbia. Food Poisoning Bulletin (FPB) asked Michael Batz, Head of Food Safety Programs at the University of Florida Emerging Pathogens Institute, if he was surprised at how long the investigation into the source of the outbreak took. “I am not surprised at how long it took. Tracking down a source of an outbreak is … [Read more...]

Moon Marine USA Corporation Recalls Frozen Raw Yellowfin Tuna Product

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Moon Marine USA of Cupertino, California is voluntarily recalling 58,828 pounds of frozen raw yellowfin tuna product that is linked with the outbreak of Salmonella Bareilly that has sickened 116 people across the country. Fourteen people have been hospitalized in the outbreak. The FDA's Curtis Allen stated, "We have traced the illness back to certain lots of tuna scrape from Moon Marine. There could still be some out there, but we hope it won't be out for long." The tuna is called "Nakaochi Scrape AA or AAA" and is made from tuna backmeat that is scraped from the bones of the fish. The FDA report states that the product isn't for sale to individuals, but sold to restaurants and grocery stores. It is commonly used to make spicy tuna rolls and other recipes that are made with ground or … [Read more...]

Salmonella Bareilly Outbreak Has Now Sickened 116 In 20 States, Tuna Sushi Suspected

CDC-Sal-Map

The Salmonella Bareilly outbreak has now sickened 116 people in 20 states and the District of Columbia, according to the latest update from the Centers for Disease Control and Prevention (CDC) released April 11. The update reflects an increase of 16 case patients and one state since the previous update on April 6. The new state is Florida and the new cases are from the following  states: Florida (1), Georgia (1), Illinois (1), Maryland (1), Massachusetts (4), Missouri (1), New York (1), Pennsylvania (2), Rhode Island (1), and Wisconsin (3). The total case count by state now stands at: Alabama (2), Arkansas (1), Connecticut (5), District of Columbia (2), Florida (1), Georgia (5), Illinois (10), Louisiana (2), Maryland (11), Massachusetts (8), Mississippi (1), Missouri (2), New Jersey … [Read more...]

Salmonella Bareilly Cases Occur But Are Uncommon in Texas

Sushirolls

Three Texas residents are part of the Salmonella outbreak that has sickened 100 people in 19 states, but this isn’t the first time Texas has had reported cases of the unusual outbreak strain Salmonella Bareilly. From 2009-2011, an average of 14 cases of Salmonella Bareilly were reported annually to the Texas Department of State Health Service, Chris Van Deusen, Assistant Press Officer, told Food Poisoning Bulletin. The most recent case, prior to the current investigation, was in December 2011, he said. State and federal officials have been investigating the outbreak since January, but have been unable to determine a source. In interviews with investigators, case patients in several states reported eating sushi, sashimi and other foods made with raw fish, according to a report from … [Read more...]

How Can Sushi Tuna Be Contaminated with Salmonella?

Sushitunarice

Tuna that is used for sushi is supposed to be impeccably fresh so it is safe(r) to eat. The best sushi restaurants have chefs that buy and personally inspect each piece of tuna to make sure it's of the highest quality. The latest food poisoning outbreak in the U.S. is caused by Salmonella Bareilly, a rare strain of bacteria. Investigators are narrowing in on sushi, especially sushi made with tuna, as the cause. So how could tuna be contaminated with Salmonella? Food Poisoning Bulletin talked to Dr. Ted Johnson, professor of biology and Director of the Health Professions committee at St. Olaf College in Northfield, MN, about this issue. Dr. Johnson said that tuna does not naturally carry Salmonella, unlike chickens and cows. "The bacteria had to come from another source," he said. … [Read more...]

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