Background: Salmonella enterica subsp. enterica serovar Virchow (antigenic formula 6,7,14:r:1,2 ) is a serovar of the O:7 (C1) serogroup. S. Virchow is a serovar adapted to poultry, but also isolated from foodborne outbreaks not directly traced back to chicken products. A 2010 report from Switzerland reported that S. Virchow was one of the 5 most common Salmonella serovars in Europe, with reports of 3rd-generation cephalosporin- and fluoroquinolone-resistance. Most often, S. Virchow infection causes gastrointestinal illness, but a 1984 report from Essex, England identified septicemic patients who suffered from neurological symptoms. The clone corresponding to the 2017 multi-country outbreak has been circulating in the EU poultry meat production chain at least in France, Germany, Ireland, and the Netherlands.
Animal reservoir: Serovar Virchow is associated with poultry, but dog-to-human transmission has been reported.
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- http://www.cdc.gov/salmonella/virchow-02-16/advice.html
- https://www.jstage.jst.go.jp/article/jvms/62/7/62_7_767/_pdf
- http://www.foodsafetynews.com/2016/03/outbreak-grows-garden-of-life-renames-recalled-protein-powder/#.Vx5kyUY5X4Y
- https://www.ecdc.europa.eu/en/publications-data/salmonella-virchow-st16-chicken-meat