According to the CDC, 238 individuals infected with the outbreak strain of Salmonella Montevideo, which displays either of two closely related pulsed-field gel electrophoresis (PFGE) patterns, have been reported from 44 states and District of Columbia since July 1, 2009. The number of ill persons identified in each state with this strain is as follows: AK (1), AL (2), AZ (7), CA (30), CO (5), CT (5), DC (1), DE (3), FL (3), GA (3), IA (1), ID (4), IL (17), IN (4), KS (4), LA (1), MA (13), MD (1), ME (1), MI (4), MN (5), MO (2), MS (1), NC (11), ND (1), NE (3), NH (2), NJ (8), NM (2), NY (18), OH (9), OK (1), OR (9), PA (7), RI (2), SC (1), SD (3), TN (5), TX (7), UT (9), VA (1), WA (17), WI (1), WV (1), and WY (2).

Salmonella Senftenberg, a different serotype of Salmonella, has been found in food samples from retail and a patient household during this outbreak investigation. PulseNet identified 6 persons who had illness caused by Salmonella Senftenberg with matching PFGE patterns between July 1, 2009 and today. Public health officials have interviewed 5 of the 6 ill persons with this strain of Salmonella Senftenberg and determined that one consumed a recalled salami product during the week before their illness began. These six cases are not included in the overall CDC case count reported above.