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Created by
user-9b773, last updated by Brad Yang on Mar 09, 2025
1 minute read
Background: Salmonella enterica subsp. enterica serovar Derby (antigenic formula 1,4,[5],12:f,g:[1,2]) is a serovar of the O:4 (B) serogroup. S. Derby is a common serotype in pigs and pork products in Europe, raw pork in China (particularly Luohe, in Henan province). It is one of the dominant Salmonella serovars isolated from slaughter pigs in Europe (EFSA, 2008), and ranks #4 in the most frequently isolated Salmonella serovars from clinical non-human sources in the United States.
Animal reservoir: The most common reservoir for serovar Derby is swine. However, it has also been reported in poultry, eggs and dairy products.
Geographical distribution: S. Derby has been reported in the US, Europe, and China.
Outbreaks: Several outbreaks linked to S. Derby have been reported; in many of these outbreaks, the associated food was pork products.
| Year | Location | Associated source | Number of cases |
|---|---|---|---|
| 2011 | Spain | dried pork sausage | <49 |
| 1963 | US-multistate | raw or under-cooked eggs | ~822 (incl. secondary) |
Recalls: Multiple recalls linked to serovar Derby have been reported. Examples are below.
| Year | Location | Recalled product | Type |
|---|---|---|---|
| 2024 | Finland | Frozen pork cheek from Poland via Estonia | Meat and meat products (other than poultry) |
| 2021 | US | Salami stick1 | Meat and meat products (other than poultry) |
1 Euro Foods has recalled around 119,091 pounds of Citterio brand Premium Italian-Style Salame Sticks products.
Relevant links: