Since the last update on October 14, 2015, 71 more ill people have been reported from 23 states. Illnesses that occurred after October 21, 2015 might not be reported yet. A series of events occurs between the time a person is infected and the time public health officials can determine that the person is part of an outbreak. This means that there will be a delay between when a person gets sick and confirmation that he or she is part of an outbreak. This takes an average of 2 to 4 weeks. Please see the Timeline for Reporting Cases of Salmonella Infection for more details.

As of November 18, 2015, 838 people infected with the outbreak strains of Salmonella Poona have been reported from 38 states. The number of ill people reported from each state is as follows: Alabama (1), Alaska (17), Arizona (129), Arkansas (13), California (232), Colorado (19), Connecticut (1), Florida (1), Hawaii (1), Idaho (24), Illinois (9), Indiana (5), Iowa (7), Kansas (2), Kentucky (1), Louisiana (5), Maryland (1), Minnesota (40), Missouri (14), Montana (16), Nebraska (8), Nevada (16), New Hampshire (1), New Mexico (32), New York (6), North Dakota (8), Ohio (3), Oklahoma (13), Oregon (22), Pennsylvania (2), South Carolina (10), South Dakota (3), Texas (42), Utah (58), Virginia (1), Washington (25), Wisconsin (43), and Wyoming (7).

Among people for whom information is available, illnesses started on dates ranging from July 3, 2015 to November 1, 2015. Ill people range in age from less than 1 year to 99, with a median age of 18. Fifty percent of ill people are children younger than 18 years. Fifty-seven percent of ill people are female. Among 601 people with available information, 165 (27%) report being hospitalized. Four deaths have been reported from Arizona (1), California (1), Oklahoma (1), and Texas (1).

Epidemiologic, laboratory, and traceback investigations identified cucumbers imported from Mexico and distributed by Andrew & Williamson Fresh Produce as a likely source of the infections in this outbreak. Two recalls of cucumbers that may be contaminated with Salmonella were announced as a result of this investigation: Andrew & Williamson Fresh Produce and Custom Produce Sales.