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首页> 外文期刊>Journal of Clinical Microbiology >Characterization of six new capsular types (23 through 28) of Streptococcus suis.
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Characterization of six new capsular types (23 through 28) of Streptococcus suis.

机译：表征猪链球菌的六种新荚膜类型（23至28）。

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Six new capsular types of Streptococcus suis (types 23 to 28) are described. All reference strains were isolated from diseased pigs and were morphologically and biochemically similar to previously described capsular types 1 to 22. Clear and specific reactions were obtained for each of the new capsular types with three different typing techniques; no cross-reactions were detected among them or with other S. suis capsular types. Their capsular material presented similar ultrastructural characteristics, as shown by electron microscopy, and fimbriae similar to those described for other capsular types of S. suis were observed. When untypeable field isolates were tested with antisera raised against the six new capsular types, capsular type 23 appeared to be the most prevalent, representing more than 50% of all these isolates. Most isolates were recovered from cases of pneumonia, septicemia, and meningitis. Presumptive biochemical identification described for S. suis capsular types 1 to 22 may also be used for capsular types 23 to 28.
机译：描述了六种新的猪链球菌荚膜类型（23至28型）。从患病猪中分离出所有参考菌株，它们的形态和生化特性与先前描述的1至22型荚膜相似。通过三种不同的分型技术，每种新型荚膜均获得了清晰，特异性的反应。在它们之间或与其他猪链球菌荚膜类型均未检测到交叉反应。如电子显微镜所示，它们的荚膜材料具有相似的超微结构特征，并且观察到与针对其他荚膜链球菌类型的描述相似的菌毛。当使用针对六种新荚膜类型的抗血清测试无法分型的野外分离株时，荚膜类型23似乎是最流行的，占所有这些分离株的50％以上。大多数分离物是从肺炎，败血病和脑膜炎病例中回收的。为1至22型猪链球菌描述的推定生化识别也可用于23至28型荚膜。

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