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Characterization of Klebsiella Isolates from Natural Receiving Waters and Comparison with Human Isolates

机译：来自自然接收水的克雷伯菌分离物的表征和与人类分离物的比较

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Two hundred sixty-six strains of Klebsiella pneumoniae isolated from natural water sources in geographically diverse areas (Florida, Massachusetts, and Oregon) were analyzed to determine the serotype, biochemical, virulence, and antimicrobial susceptibility differences between these natural strains and human Klebsiella isolates. Sixty of 72 defined serotypes were found among 210 typable strains. Geographic patterns were present, but in general were not pronounced among serotypes. Reactions with 28 biochemical tests showed percentage responses which were very similar to the summaries of primarily human Klebsiella isolates (as reported by Edwards and Ewing, 1972) and that represented diverse geographic sampling. Virulence studies in representative strains showed no geographic variability and little difference from comparable hospital patient-obtained isolates. In contrast to human hospital isolates, strains demonstrated 90% or greater susceptibility to all antibiotics except ampicillin and carbenicillin; and in further contrast, there was little multiple antibiotic resistance beyond that with ampicillin and carbenicillin.
机译：从地理上不同区域（佛罗里达州，马萨诸塞州和俄勒冈州）的天然水源中分离出的166株肺炎克雷伯菌菌株进行了分析，以确定这些自然菌株与人类克雷伯菌分离株之间的血清型，生化，毒力和抗菌药敏性差异。在210个可分类菌株中发现了72种确定的血清型中的60种。存在地理模式，但一般在血清型之间并不明显。 28种生化测试的反应表明，百分比响应与主要人类克雷伯菌分离株的汇总非常相似（如Edwards和Ewing于1972年报道），代表了不同的地理采样。在代表性菌株中的毒力研究表明，与可比的医院患者分离株相比，地理变异性无差异。与人类医院分离株相比，除氨苄青霉素和羧苄青霉素外，所有菌株对所有抗生素的敏感性均达到90％或更高。与之形成鲜明对比的是，除了氨苄西林和羧苄青霉素以外，几乎没有多种抗生素耐药性。

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