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Geographical distribution: Serovar Typhimurium is globaly distributed. In multiple locations (i.e., U.S., Europe, Africa and Latin America), it is reported as the second most common Salmonella serovar in humans. In Australia, it is the most common serovar in humans. In Asia, it is among the ten most common serovars in humans.

OutbreaksHuman outbreaks: Numerous outbreaks have been associated with S. Typhimurium. Outbreaks Human outbreaks have been linked to a number of foods and to contact with animals (chicks, ducklings, and other live baby poultryanimals). Here we mention some of the latest outbreaks caused by this serovar Below are some examples.

Year

Location

Associated source

Number of cases

2024-2025US: multistateCucumbers113
2024US: multistateBackyard poultry1470
2023-2025Europe: multi-countryAlfalfa sprouts509
2018US: multistateChicken salad265
2018US: multistateDried coconut14

2013

US: multistate

Live poultry

356

2013

US: multistate

Ground beef

At least 22

2012

Canada

Ground beef

50

2012

US: multistate

Pet hedgehogs

26

2012

US: multistate

Cantaloupe2

261

2011

US: multistate

Ground beef

20

2011

US: multistate

African dwarf frogs

241

2011

England

Hog roast

24

2009-2011

Ireland

Duck eggs

34

2009

England

Unknown

14

2008-2009

US: multistate

Peanut butter

714

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