Background:  Salmonella enterica subsp. enterica serovar Thompson (antigenic formula 6,7,14:k:1,5) is part of Group O:7 (C1). Members of this group can be lysogenized by phage 14 (O:6,7 ––> O:6,7,14, former group C4). Salmonella enterica subsp. enterica serovar Cardiff has been combined with Salmonella enterica subsp. enterica serovar Thompson. 

Human outbreaks: 

Border rejections: There have been no recent border rejections linked to this serovar.

Recalls: 

¹ This recall was caused by a multistate outbreak described above. On October 23, 2023, Gills Onions issued a recall of their fresh diced onion products.

² This recall was caused by a multistate outbreak described above. On October 8, 2021, Northeast Seafood Products, Inc. issued a recall of their multiple products.

³ This recall was caused by a multistate outbreak described above. Five Salmonella serovars, Salmonella Thompson, Kiambu, Agona, Gaminara, and Senftenberg, were involved. Grande Produce, Agroson’s LLC, and Freshtex Produce, LLC issued recalls of their papayas. 

Relevant links:

1. https://www.fda.gov/safety/recalls-market-withdrawals-safety-alerts/gills-onions-voluntarily-recalls-select-lots-fresh-diced-onion-products-because-possible-health-risk
2. https://www.fda.gov/food/outbreaks-foodborne-illness/outbreak-investigation-salmonella-thompson-seafood-october-2021
3. https://archive.cdc.gov/www_cdc_gov/salmonella/kiambu-07-17/advice.html

1. http://www.scacm.org/free/Antigenic%20Formulae%20of%20the%20Salmonella%20Serovars%202007%209th%20edition.pdf
2. https://www.fda.gov/Food/RecallsOutbreaksEmergencies/Outbreaks/ucm568097.htm
3. https://www.cdc.gov/salmonella/kiambu-07-17/index.html