Isolation and identification of a strain of Streptococcus suis and its drug sensitivity test

  Objective   To report the results of microbiological examinat ion and drug sensitivity test of Streptococcus suis type Ⅱ fulminant infection in swine in Jilin province in spring of 2005.

  Methods   Fromill or dead pigs, suspicious strains of Streptococcus suis were isolated.These strains were identified as Streptococcus suis type Ⅱbated on the results of Gram staining and microscopy, and slide agglutination test with specific diagnostic antiserum.

  Results   The isotates of Streptococus suis type Ⅱ were sensitive to five of the tested antibiotics such as Ampicillin and were resistant to six of the tested antibiotics such as gentamycin.

  Conclusion   By disinfection of breeding environment and feed, iso lation of the ill pigs, Ampicillin and Rifampicin used as their apeutic drugs, the fulminant epidemic of Streptococcus suis type Ⅱ was successfully controlled and non of the persons was infected with the microbe.