Serotypes and Antimicrobial Susceptibility of<I>Actinobacillus pleuropneumoniae</I>Isolated from Pigs with Pneumonia

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  • 豚胸膜肺炎由来<I>Actinobacillus pleuropneumoniae</I>の血清型と薬剤感受性
  • 豚胸膜肺炎由来Actinobacillus pleuropneumoniaeの血清型と薬剤感受性
  • ブタ キョウマク ハイエン ユライ Actinobacillus pleuro
  • Serotypes and Antimicrobial Susceptibility ofActinobacillus pleuropneumoniaeIsolated from Pigs with Pneumonia

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Abstract

A total of 1, 441 isolates ofA. pleuropneumoniaefrom swine pneumonic lungs collected during 1989 to 1995 were examined for serotypes and susceptibility to antimicrobial agents. Of the 1, 441 isolates, 757 (52.5%) and 523 (36.3%) were of serotypes 2 and 1, respectively, while 90 (6.2%), 22 (1.5%), 21 (1.5%) and 20 (1.4%) isolates were of serotypes 5, 7, 8, and 3, respectively. The remaining 7 (0.5%) and 1 isolates were of serotypes 12 and 9. In 1990 and 1991, the isolation rate of serotype 2 were lower and that of serotype 1 were higher. All the isolates were highly sensitive to spiramycin, kitasamycin, erythromycin, lincomycin, novobiocin and colistin, whereas 915 (63.5%) were resistant to some drugs. The resistant isolates were 338 (44.6%) of 757 of serotype 2, 13 (61.9%) of 21 of serotype 8, and most isolates of serotypes 1, 3, 5, 7, 9 and 12.

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