Salmonella Harborage Sites in Infected Poultry That May Contribute to Contamination of Ground Meat

Autor: Claire-Sophie Rimet, John J. Maurer, Larissa Pickler, Lisa Stabler, Kasey K. Johnson, Roy D. Berghaus, Ana M. Villegas, Margie Lee, Monique França
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Frontiers in Sustainable Food Systems, Vol 3 (2019)
Druh dokumentu: article
ISSN: 2571-581X
DOI: 10.3389/fsufs.2019.00002
Popis: The role of invasive Salmonella in contamination of ground poultry is poorly defined. Salmonella harborage sites were determined in experimentally infected chickens and turkeys. Bioluminescent-tagged Salmonella were used to follow their spread in bone, meat, and skin following infection. Immunohistochemistry and culture were used to localize Salmonella. Chicken neck skin was positive for S. Heidelberg and S. Typhimurium throughout the experimental period, and the bacteria were localized on the stratum corneum of the epidermis and feather follicles. S. Heidelberg and S. Typhimurium were intermittently detected in drumstick muscle of chickens, with Salmonella primarily localized in connective tissues and lymphatics. Twenty percent of the drumstick muscles were culture positive for Salmonella in chickens at 42 days of age. Blood and tibiotarsus bone were culture positive for S. Heidelberg and S. Typhimurium during the first 2 weeks of infection. Salmonella levels in neck skin and muscle were
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