A total of 258 persons infected with the outbreak strains of Salmonella Bareilly (247 persons) or Salmonella Nchanga (11 persons) linked to tuna scrape have been reported to the U.S. Centers for Disease Control from 24 states and the District of Columbia.
Of those, 32 ill persons have been hospitalized, and no deaths have been reported.
Collaborative investigation efforts of state, local, and federal public health agencies indicate that a frozen raw yellowfin tuna product, known as Nakaochi Scrape, from Moon Marine USA Corporation is the likely source of this outbreak.
Consumers should not eat the recalled product, and retailers should not serve the recalled raw Nakaochi Scrape tuna product from Moon Marine USA Corporation.
State public health officials are interviewing ill persons to obtain information regarding foods they might have eaten and other exposures in the week prior to illness. On initial interviews, many of the ill persons reported consuming sushi, sashimi, or similar foods in a variety of locations in the week before becoming ill. Among 51 ill persons for whom information is available, 35 (69%) reported consuming sushi, sashimi, or similar foods in the week before illness onset. This percentage is higher than expected compared with results from a survey of healthy persons in which 5% of persons reported consuming sushi, sashimi, or ceviche made with raw fish or shellfish in the 7 days before they were interviewed. The investigation into specific types of sushi is ongoing.
The investigation has not conclusively identified a food source. Investigation is ongoing into individual food items and their sources. CDC, FDA, and state and local public health partners are continuing surveillance to identify and interview other ill persons about the foods they ate. CDC will update the public on the progress of this investigation as information becomes available.