Porcine Haemophilus pleuropneumonia epizootic in southwestern Ontario: clinical, microbiological, pathological and some epidemiological findings

Can J Comp Med. 1981 Jan;45(1):2-7.


A fibrinous necrotizing pleuropneumonia with a predominant mononuclear cell infiltrate commenced January 1978. The pneumonia, caused by Haemophilus pleuropneumoniae assumed epizootic proportions and affected mainly feeder pigs in the intensive pig rearing area of southwestern Ontario. A few abortions occurred. Winter storms, recent transportation and other potentially stressful situations were associated with herd outbreaks. Broad spectrum antibiotics were usually effective in stopping deaths.

MeSH terms

  • Animals
  • Haemophilus Infections / epidemiology
  • Haemophilus Infections / pathology
  • Haemophilus Infections / veterinary*
  • Lung / pathology
  • Ontario
  • Pleuropneumonia / epidemiology
  • Pleuropneumonia / pathology
  • Pleuropneumonia / veterinary*
  • Swine
  • Swine Diseases / epidemiology*
  • Swine Diseases / pathology