Background: Salmonella enterica subsp. enterica serovar Infantis (antigenic formula 6,7,14:r:1,5) is a serovar of the O:7 (C1) serogroup. S. Infantis is a serovar globally distributed, which is typically commonly found in chickens and broiler flocks. In a number of European countries, serovar Infantis is commonly isolated from broiler flocks. Outbreaks addition, outbreaks caused by S. Infantis have been associated with pet food and treats. In European countries, a multidrug-resistant (MDR) strain of S. Infantis was disseminated; this strain was originally found in emerged from broilers in Hungary (Hungarian clone of S. Infantis). Resistant pattern of this Hungarian clone included resistance to: nalidixic acid, streptomycin, sulphonamide, and tetracycline. In Italy, an MDR strain of S. Infantis that showed resistance to ampicillin, chloramphenicol, streptomycin, sulphonamide, tetracycline, kanamycin and trimethoprim/sulfamethoxazole emerged in 2005-06.
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Outbreaks: Outbreaks linked to poultry and pet food have been reported in the U.S. and Canada.
Year | Location | Associated source | Number of cases |
| 2019 | US-multistate | Raw chicken | 129 |
| 2017 | US-multistate | Papaya | 4* |
2013 | US-multistate | Live poultry | 125 |
2012 | US-multistate | Dry dog food | 49 |
2012 | US-multistate | Live poultry | 195 |
1999 | Canada | Pig ear dog treats | 35 |
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*This outbreak included multiple serovars
Border Rejections and Recalls:
Year | Exporting Country (if applicable) | Country Issuing Recall/Rejection | Food |
|---|---|---|---|
| 2019 | Poland | Lithuania | Chicken Wings |
Relevant links and references:
- http://www.cdc.gov/salmonella/dog-food-05-12/
- http://www.cdc.gov/salmonella/live-poultry-04-13/index.html
- http://lohmann-information.com/content/l_i_45_artikel15.pdf
- http://www.ncbi.nlm.nih.gov/pubmed/22564450
- http://www.ncbi.nlm.nih.gov/pubmed/21821397
- http://analytics.foodtrack.net/cgi-bin/read?rid=MjAxOTAyMjExMzQ0Rk9PRFRSQ0tCVUxMRVRTXzAyMjExOUw0MjY=&style=html&source=email