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Background: Salmonella enterica subsp. enterica serovar Worthington (antigenic formula 1,13,23:z:l,w) is a serovar of the O:13 (G) serogroup. Serovar Worthington were first isolated in 1937 from a young turkey and a chick by Dr. Pomeroy. The name of Worthington came from from Worthington, Minnesota, where a hatchery that the poult of this isolate was purchased from (Worthington, Minnesota).
#On process
oldest verified isolation was in 1929 in Denmark. It was in the top 15 most commonly reported Salmonella enterica serovars related to animal contact outbreaks in the United States during 2009–2014.
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Outbreaks: Several outbreaks have been associated with S. Sandiego, mostly associated with small pet turtles. There was a report on an outbreak of food poisoning with approximately 200 cases in California in 1938. Two isolates of Salmonella Sandiego were obtained from this outbreak.
| Year | Location | Associated Source | Number of Cases |
|---|---|---|---|
| 2018 | US-multistate | Spring Pasta Salad | 101 |
| 2015 | US-multistate | Pet turtles | 17 |
| 2015 | US-multistate | Pet turtles | 21 |
| 2012-2013 | US-multistate | Pet turtles | 473 |
Border Rejections: Multiple border rejections associated with serovar Sandiego have been reported during August 2020 to December 2021 and they were all linked to black pepper imported from Brazil to Germany. Some border rejections were linked to multiple serotypes.
Year | Exporting country | Importing country | Associated source | Product category |
| 2023 | Spain | Italy | Frozen turkey breast | Poultry meat and poultry meat products |
| 2022 | Poland | Italy | Minced frozen poultry meat1 | Poultry meat and poultry meat products |
2021 | Brazil | German | Herbs and spices | |
2020 | Brazil | German | Black pepper3 | Herbs and spices |
1 Salmonella Sandiego and Kedougou were found.
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Recalls: There have been no recent recalls linked to this serovar.
| Year | Location | Recalled food | Type |
|---|---|---|---|
| 2018 | US: multistate | Spring pasta salad1 | Food |
1 This recall was caused by multistate human outbreak linked to Salmonella Sandiego and Salmonella enterica subspecies IIIb, linked to ready-to-eat Spring Pasta Salad from Hy-Vee brand grocery stores.
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