Abstract

In 2003, a feed-borne outbreak of Salmonella Cubana occurred in Sweden as a result of contamination in a feed plant. Salmonella Cubana was detected in 49 out of 77 pig farms having received possibly contaminated feed. In this study, potential risk factors tor farms being salmonella positive were examined, and a survival analysis was performed to investigate risk factors affecting the restriction period for salmonella positive farms. The median restriction time for all 49 farms was 17 weeks. An increased risk for farms being salmonella infected (positive in feed and/or faeces) was seen for fattening farms and farms feeding soy. The survival analysis showed that herds, with a low level of infection and farms with a high hygiene level had shorter restriction times. This study is unique as it investigates a real outbreak of feed-borne salmonella, where the source of infection was reliably identified, the period of exposure could be defined and data were collected from all exposed farms

Published in

Acta Veterinaria Scandinavica
2006, Volume: 47, number: 1, pages: 13-21
Publisher: DANSKE DYRLAEGEFORENING

SLU Authors

• Vågsholm, Ivar

  • Department of Clinical Sciences, Swedish University of Agricultural Sciences
    

• Boqvist, Sofia

  • Department of Animal Biosciences, Swedish University of Agricultural Sciences
    

• Sternberg Lewerin, Susanna

  • Department of Animal Biosciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Food Science
Animal and Dairy Science
Veterinary Science


Publication identifier

DOI: https://doi.org/10.1186/1751-0147-47-13

Permanent link to this page (URI)

https://res.slu.se/id/publ/8754