The FDA and CDC, in collaboration with state and local partners, are investigating a multistate outbreak of Salmonella Africana and Salmonella Braenderup infections with 449 illnesses in 31 states and the District of Columbia. While originally reported as two separate outbreaks, CDC and FDA combined these two outbreak investigations as they shared several similarities, including when and where illnesses occurred, the demographics of ill people, and the foods they reported eating before they became sick. Laboratory, epidemiological, and traceback data have determined that cucumbers from Bedner Growers, Inc., of Boynton Beach, Florida, and Thomas Produce Company, of Boca Raton, Florida, are likely sources of illnesses in this outbreak; however, these growers do not account for all the illnesses in this outbreak.

As of July 2, a total of 449 people infected with one of the outbreak strains of Salmonella Africana and SalmonellaBraenderup have been reported from 31 states and the District of Columbia (see map). Of these illnesses, 215 people were infected with the newly added Salmonella Braenderup strain. Illnesses started on dates ranging from March 11, 2024, to June 4, 2024 (see timeline). Of 360 people with information available, 125 have been hospitalized and no deaths have been reported.

Based on traceback information collected, Thomas Produce Company supplied cucumbers to multiple points of service where ill people reported eating cucumbers. As part of the investigation, FDA conducted an onsite inspection at Thomas Produce Company and collected samples. Salmonella Braenderup was detected in samples of canal water used by Thomas Produce Company. Whole Genome Sequencing analysis determined that the water used by Thomas Produce Company contained the Salmonellathat is a match to a strain of Salmonella Braenderup that is causing some of the illnesses in this outbreak. 

Additional types of Salmonella were detected in both soil and water samples collected at both Bedner Growers, Inc. and Thomas Produce Company. Multiple other strains of Salmonella, unrelated to this outbreak investigation, found at Bedner Growers, Inc. matched clinical isolates from illnesses in the National Center for Biotechnology Information’s (NCBI) database that occurred in previous years. CDC and FDA are working to determine whether other positive samples from Thomas Produce Company match historical clinical isolates.