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ARS Home » Midwest Area » Ames, Iowa » National Animal Disease Center » Food Safety and Enteric Pathogens Research » Research » Publications at this Location » Publication #124338
Title: EXPERIMENTAL RAPID INFECTION IN MARKET SWINE FOLLOWING EXPOSURE TO A SALMONELLA CONTAMINATED ENVIRONMENT

Author
item Hurd, Howard
item Gailey, Jared
item MCKEAN, J - IOWA STATE UNIVERSITY
item ROSTAGNO, M - FEDERAL UNIV OF LAVRAS

Submitted to: International Symposium on Epidemiology and Control of Salmonella in Pork
Publication Type: Proceedings
Publication Acceptance Date: 9/5/2001
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: The objective of these experiments was to evaluate the possibility of swine becoming infected with Salmonella typhimurium from an environment contaminated with feces in a short time interval. Two experiments were conducted. In Experiment 1, pigs were necropsied at 2 (n = 10), 3 (n = 10), and 6 (n = 5) hours after continuous exposure to an environment contaminated with nalidixic acid-resistant Salmonella typhimurium Chi4232). In Experiment 2, pigs were necropsied after 30 minutes (n = 6), 60 minutes (n = 6), 2 hours (n = 6), and 6 hours (n = 3). In Experiment 1, 80 percent of animals with a 2-hour, 60% of animals with a 3-hour, and 100% of animals with a 6- hour exposure to this slurry had at least one sample test positive for the marked Salmonella typhimurium strain. In Experiment 2, 50% of the 30 minute, 50% of the 60 minute, and 33% of the 2-hour exposed pigs had at least one sample test positive.