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

Adrienny T. R. Costa²  Francisco C.f. Lobato¹  Vera L.v. Abreu¹  Ronnie A. Assis¹  Ronaldo Reis²  Francisco A. Uzal¹ 

[1] ,Instituto de Pesquisas Veterinárias EspecializadasBelo Horizonte MG ,Brasil

关键词: Streptococcus suis;    Diseased pigs;    Serotyping;    Virulence in mice;   

DOI  :  10.1590/S0036-46652005000200012

来源: SciELO

【 摘 要 】

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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