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. This serovar is the sixth most common serovar in the U.S. in humans and animals. S. Montevideo is among the serovars commonly isolated from animals. Lately, some of the outbreaks linked to this serovar have been associated with imported spices. Whole genome sequencing of a number of S. Montevideo strains have been conducted, including an study that identified two large plasmids encoding antimicrobial and heavy metal resistance genes.
Animal reservoir: cattle and chickens are common reservoirs of S. Montevideo.
Geographical distribution: S. Montevideo is globally distributed. In the U.S. serovar Montevideo is among the top ten serovars isolated from humans and animals, in Europe serovar Montevideo has caused multiple outbreaks, in Australia and New Zealand cases have been linked to imported food from Asia.
Outbreaks: Numerous outbreaks in different countries have been linked to serovar Montevideo.
Year |
Location |
Associated source |
Number of cases |
2013 |
US-multistate |
Tahini Sesame |
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 |
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