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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. 

NCBI PD link for serovar Thompson: https://www.ncbi.nlm.nih.gov/pathogens/isolates/#(taxgroup_name:%22Salmonella%20enterica%22)%20AND%20computed_types:(%22serotype=Thompson%22)

Genetic characteristics:

Animal reservoir:

Geographical distribution: 

Human outbreaks: 

Year
Location
Associated source
Number of cases
2024US: WAFood or drink from IHOP in Bellevue32
2023US: multistateFresh diced onions80
2021US: multistateSeafood115
2019US: multistateChicken134
2018US: multistateKratom2199
2018KoreaChocolate cake1,111
2017US: multistateImported maradol papayas3220
2006US: SCPeanuts100

...

  1. https://kingcounty.gov/en/dept/dph/health-safety/disease-illness/foodborne-illness-outbreaks/2024-feb-1-ihop
  2. https://www.cdc.gov/salmonella/outbreaks/onions-10-23/investigation.html
  3. https://www.cdc.gov/mmwr/volumes/72/wr/mm7219a2.htm
  4. https://www.cdph.ca.gov/Programs/CEH/DFDCS/CDPH%20Document%20Library/FDB/FoodSafetyProgram/EnvInvReports/ElPolloLoco_Chicken_Salmonella_Outbreak%20Report_Final_060820_redacted%20for%20posting.pdf
  5. https://archive.cdc.gov/#/details?url=https://www.cdc.gov/salmonella/kratom-02-18/index.html
  6. https://e-epih.org/journal/view.php?doi=10.4178/epih.e2019002
  7. https://archive.cdc.gov/#/details?url=https://www.cdc.gov/salmonella/kiambu-07-17/index.html
  8. https://outbreakdatabase.com/outbreaks/2006-salmonella-thompson-at-a-pumpkin-festival
  9. https://www.fda.gov/safety/recalls-market-withdrawals-safety-alerts/gills-onions-voluntarily-recalls-select-lots-fresh-diced-onion-products-because-possible-health-risk
  10. https://www.fda.gov/food/outbreaks-foodborne-illness/outbreak-investigation-salmonella-thompson-seafood-october-2021
  11. https://archive.cdc.gov/www_cdc_gov/salmonella/kiambu-07-17/advice.html
  12. http://www.scacm.org/free/Antigenic%20Formulae%20of%20the%20Salmonella%20Serovars%202007%209th%20edition.pdf
  13. https://www.fda.gov/Food/RecallsOutbreaksEmergencies/Outbreaks/ucm568097.htm
  14. https://www.cdc.gov/salmonella/kiambu-07-17/index.html