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Background: Salmonella enterica subsp. enterica serovar Sandiego (antigenic formula 1,4,[5],12:e,h:e,n,z15) is a serovar of the O:4 (B) serogroup. Serovar Sandiego has been reported oldest isolation in 1929 in Denmark.
Animal reservoir: Serovar Sandiego is found in small turtles and their environments. A 1951 case report from Canada mentions that it is also found in birds. This serovar has also been found in dogs.
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Outbreaks: Several outbreaks have been associated with S. Sandiego, mostly in small pet turtles. There was a report on an outbreak of food poisoning with approximately 200 cases in California, 1938. Two isolates of Serovar 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 |
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