One hundred cases of Salmonella Bareilly poisoning have been reported from 19 states and the District of Columbia while investigators still have  “not conclusively identified a food source,” the Centers for Disease Control and Prevention said on Friday.

The CDC’s earlier report, as well as an internal email circulated at the Food and Drug Administration, implicated sushi, sashimi or a raw dish such as ceviche as possible sources of the outbreak. The FDA email said spicy tuna roll sushi is highly suspect. 

The seven additional cases were reported by Connecticut, Illinois, Maryland, New Jersey, Pennsylvania, Rhode Island and Wisconsin.

Altogether, New York has reported 23 outbreak cases; Maryland 10; Illinois and Wisconsin 9 each; New Jersey 7; Connecticut and Virginia 5 each; Georgia, Massachusetts and Rhode Island 4 each; Pennsylvania, South Carolina and Texas 3 each; Alabama, Washington D.C., Louisiana and North Carolina 2 each; Arkansas, Mississippi, and Missouri 1 each.

Case patients reported illness onset dates from January 28 to March 25. They range in age from 4 to 78 years old; median age is 31. Ten people have had symptoms so severe they required hospitalization.

The CDC is working with the FDA on the investigation and promises to “provide updates as soon as they are available.” If a specific food source is identified as the cause of the outbreak, the CDC said it will alert the public and “take further steps to prevent additional illnesses.”

CDC Outbreak Map