Background: Salmonella enterica subsp. enterica serovar Montevideo (antigenic formula 6,7,14:g,m,[p],s:[1,2,7]) is a serovar of the O:7 (C1) serogroup. S. Montevideo is the sixth most common serovar isolated from humans and animals in the U.S. Outbreaks caused by S. Montevideo have been associated with imported spices and live poultry. Whole genome sequencing of a number of S. Montevideo strains have been conducted, including an study that identified one strain with two large plasmids that encoded antimicrobial and heavy metal resistance genes.
Animal reservoir: Cattle and chickens are common reservoirs of S. Montevideo.
Geographical distribution: S. Montevideo is globally distributed. It has been reported, among the most common serovars, in the U.S., Europe, Latin America, Asia, and Oceania
Outbreaks: Numerous outbreaks in different countries have been linked to serovar Montevideo, imported spices have been associated with several of these outbreaks.
Year | Location | Associated source | Number of cases |
| 2018 | US-multistate | Sprouts | 10 |
| 2017 | US-multistate | Tahini | 8 |
| 2016 | US-multistate, Mexico, Canada, Peru | pistachios | 9 |
2013 | US-multistate | Tahini | 16 |
2012 | US-multistate | Live poultry | 93 |
2010 | US-multistate | Red and Black Pepper/Italian-Style Meats | 272 |
2010 | Germany | Dietary food supplement | 15 |
2002-03 | Australia &New Zealand | Tahini | 68 |
2002 | Japan | Lunch prepared by caterer | 23 |
1996 | England | Cooked chicken | 10 |
Recalls: Food recalls have been associated with S. Montevideo.
| Year | Location | Recalled food | Type |
|---|---|---|---|
| 2016 | US-multistate, Mexico, Canada, Peru | Wonderful Pistachios | nuts |
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