Serotyping and evaluation of the virulence in mice of Streptococcus suis strains isolated from diseased pigs

Authors

  • Adrienny T. R. Costa Instituto de Pesquisas Veterinárias Especializadas
  • Francisco C.F. Lobato Universidade Federal de Minas Gerais; Escola de Veterinária
  • Vera L.V. Abreu Universidade Federal de Minas Gerais; Escola de Veterinária
  • Ronnie A. Assis Universidade Federal de Minas Gerais; Escola de Veterinária
  • Ronaldo Reis Instituto de Pesquisas Veterinárias Especializadas
  • Francisco A. Uzal California Animal Health & Food Safety Laboratory

Keywords:

Streptococcus suis, Diseased pigs, Serotyping, Virulence in mice

Abstract

A total of 110 strains of Streptococcus suis, isolated from diseased pigs in Brazil were serotyped and analyzed for virulence. Serotyping of the strains resulted in the following classification: 42 strains of serotype 2 (38.2%), 10 strains of serotype 14 (9.1%), seven strains of serotype 9 (6.4%), three strains each of serotype 7 and 11 (2.7%), two strains each of serotype 1 and 8 (1.8%) and one strain each of serotypes ½, 3, 5, 6 and 10 (0.9%). Cross reactions among serotypes 1, 14 and 7 were observed in 21 strains (19.1%). Only 41.9% of the strains were lethal for mice using the pathogenicity test.

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Published

2005-04-01

Issue

Vol. 47 No. 2 (2005)

Section

Brief Communication

How to Cite

Costa, A. T. R., Lobato, F. C., Abreu, V. L., Assis, R. A., Reis, R., & Uzal, F. A. (2005). Serotyping and evaluation of the virulence in mice of Streptococcus suis strains isolated from diseased pigs . Revista Do Instituto De Medicina Tropical De São Paulo, 47(2), 113-115. https://revistas.usp.br/rimtsp/article/view/30898