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Detection of Clostridium perfringens type C in pig herds following disease outbreak and subsequent vaccination
  1. K. Schäfer, DVM1,
  2. M. Wyder2,
  3. S. Gobeli, DVM2,
  4. A. Candi, DVM2,
  5. M. G. Doherr, DVM, PhD, FVH, Dipl. ECVPH3,
  6. B. Zehnder, DVM4,
  7. W. Zimmermann, DVM, FVH, Dipl. ECPHM1 and
  8. H. Posthaus, DVM, PhD, Dipl. ECVP2
  1. 1Swine Clinic, Vetsuisse Faculty, University of Bern, Bern 3001, Switzerland
  2. 2Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern 3001, Switzerland
  3. 3Veterinary Public Health Institute, Vetsuisse Faculty, University of Bern, Liebefeld 3097, Switzerland
  4. 4Swiss Porcine Health Service, Bern 3001, Switzerland;
  1. E-mail for correspondence: horst.posthaus{at}vetsuisse.unibe.ch

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.

  • Bacterial diseases
  • Clinical practice
  • Disease control
  • Enteric disease
  • Herd health
  • Vaccines
  • Accepted September 24, 2012.

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