The U.S. Centers for Disease Control reports a total of 390 persons infected with the outbreak strains of Salmonella Bareilly (376 persons) or Salmonella Nchanga (14 persons) have been reported from 27 states and the District of Columbia. 47 ill persons have been hospitalized, and no deaths have been reported, up from 316 a month ago.

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.

Laboratory testing conducted by state public health laboratories in Connecticut, Maryland, Massachusetts, Pennsylvania, South Carolina, and Wisconsin has isolated Salmonella from 53 (96%) of 55 samples taken from intact packages of frozen yellow fin tuna scrape from Moon Marine USA Corporation or from sushi prepared with the implicated scrape tuna product.

The numbers of new cases have declined substantially since the peak in April 2012. The outbreak may continue at a low level for the next several months since some food establishments may be unaware that they received recalled product and continue to serve this frozen raw yellowfin tuna product, which has a long shelf-life.

CDC and state and local public health partners are continuing surveillance to identify new cases.