Abstract
Immunisation of sows using Clostridium perfringens type C toxoid vaccines is recommended to prevent necrotising enteritis (NE) on pig breeding farms. Absence of disease, however, oftentimes leads to the false assumption of pathogens being eradicated. The prevalence of C perfringens type C was determined by PCR in faecal samples of piglets and sows in three Swiss pig breeding farms two to four years after implementation of a vaccination programme following disease outbreaks. C perfringens type C could still be detected several years after an outbreak despite absence of NE. In-herd prevalence of the pathogens varied significantly between the farms and was also lower compared with a farm which experienced a recent outbreak. In conclusion, C perfringens type C can be detected on once-affected farms, even in the absence of NE for several years.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Animals, Newborn
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Bacterial Vaccines / administration & dosage*
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Bacterial Vaccines / immunology
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Clostridium Infections / epidemiology
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Clostridium Infections / microbiology
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Clostridium Infections / prevention & control
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Clostridium Infections / veterinary*
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Clostridium perfringens / isolation & purification*
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Disease Outbreaks / prevention & control
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Disease Outbreaks / veterinary*
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Enteritis / epidemiology
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Enteritis / microbiology
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Enteritis / prevention & control
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Enteritis / veterinary
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Enterotoxins / genetics
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Feces / microbiology
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Female
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Male
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Necrosis / epidemiology
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Necrosis / microbiology
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Necrosis / prevention & control
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Necrosis / veterinary
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Prevalence
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Swine
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Swine Diseases / epidemiology*
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Swine Diseases / microbiology
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Swine Diseases / prevention & control
Substances
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Bacterial Vaccines
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Enterotoxins