Isolation of Streptococcus suis from diseased pigs in Canada

F. Touil, Robert Higgins, M. Nadeau

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50 Scopus citations


A total of 260 isolates of streptococci collected over a 9-year period from diseased pigs submitted for necropsy were studied. Seventy-seven percent of isolates were identified as S. suis and 32% of S. suis isolates were retrieved in pure culture. S. suis was found more frequently in lungs and was often isolated in conjuction with Actinobacillus pleuropneumoniae, Pasteurella multocida, Escherichia coli and other microorganisms. A total of 151 (76%) of S. suis isolates could be serotyped within the 9 recognized serotypes. Serotype 2 was the most prevalent with 33%, followed by serotypes 3, 5 and 7. All isolates were sensitive to ampicillin, penicillin, cephradine, chloramphenicol and trimethoprim-sulfamethoxazole. Resistance to streptomycin, neomycin and tetracycline appeared to be very high.

Original languageEnglish (US)
Pages (from-to)171-177
Number of pages7
JournalVeterinary Microbiology
Issue number2
StatePublished - Jan 1 1988
Externally publishedYes

ASJC Scopus subject areas

  • Microbiology
  • veterinary(all)


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