Host defence responses in pigs experimentally infected with S. typhimurium

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1997
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Riber, U.
Baggesen, D.
Nielsen, Bent
Lind, P.
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International Conference on the Epidemiology and Control of Biological, Chemical and Physical Hazards in Pigs and Pork
Iowa State University Conferences and Symposia

The SafePork conference series began in 1996 to bring together international researchers, industry, and government agencies to discuss current Salmonella research and identify research needs pertaining to both pig and pork production. In subsequent years topics of research presented at these conferences expanded to include other chemical and biological hazards to pig and pork production.

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Abstract

Salmonella Typhimurium may induce persistent infections (organ carriers) in pigs, and healthy carriers seems to be a problem in controling the infection (8). Evasion or disturbance of the host defence responses may be nessesary for establishment of a persistent infection. Functional changes in circulating neutrophils from pigs infected with Salmonella Typhimurium have been demonstrated (1). The aim of the study was to investigate host defence mechanisms in pigs that have cleared the infection, persistently infected pigs and uninfected pigs, studies that may contribute to the explanation of how the carrier-state is established. Phagocytosis and oxidative burst in peripheral blood or cells isolated from peripheral blood were investigated in three inoculation experiments.

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Wed Jan 01 00:00:00 UTC 1997