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首页> 外文期刊>感染症学雑誌 >Distribution of Legionella spp. in hot spring baths in Japan
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Distribution of Legionella spp. in hot spring baths in Japan

机译：军团菌属的分布。在日本的温泉浴场

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We investigated the inhabitation of Legionella spp. in hot spring water in various regions in Japan. The following results were obtained. 1) Of 710 hot spring water samples nationwide, Legionella spp. was isolated from 204 samples (28.7%), covering all 47 prefectures. By region, the isolation rate was the highest at 31.0% in the Chugoku district, while the isolation rates in Hokkaido, Kinki, and Kyushu were low, ranging from 25.0 to 26.2%. The rate in Tohoku, Kanto, Chubu, and Shikoku districts was 28.6-30.7%. Regarding the isolation rate by pH of hot spring water, the isolation rate was 4.9% at pH 3 or lower, but 34.8% at pH 3.1-7.5. When pH was 7.6 or higher, the isolation rate was 24.8%. 2) Most frequently, the number of bacteria detected was below 10(2) CFU/100ml (98 samples, 48.0%). The count was between 10(2) and 10(3) CFU/100ml in 71 samples (34.8%), and between 10(3) and 10(4) CFU/100ml in 29 samples (14.2%). In 6 samples (2.9%), the count was higher than 10(4) CFU/100 ml. 3) Among the isolates identified, L. pneumophila was the predominant species, and particularly, serogroups 1 and 5 were frequently isolated. The above findings clarified that although the number of the bacteria is low, Legionella spp. inhabits hot spring water throughout Japan.
机译：我们调查了军团菌的种群。日本各地区的温泉水中获得了以下结果。 1）全国710个温泉水样本中的军团菌属。从204个样本（28.7％）中分离出来，覆盖了所有47个州。按地区划分，在中国地区，隔离率最高，为31.0％，而在北海道，近畿和九州，隔离率较低，在25.0％至26.2％之间。东北，关东，中部和四国地区的比率为28.6-30.7％。关于温泉水的pH的分离率，在pH 3以下的情况下，分离率为4.9％，在pH 3.1〜7.5下的分离率为34.8％。当pH为7.6或更高时，分离率为24.8％。 2）最常见的是，检测到的细菌数量低于10（2）CFU / 100ml（98个样品，48.0％）。 71个样本（34.8％）的计数介于10（2）和10（3）CFU / 100ml之间，29个样本的计数为10（3）和10（4）CFU / 100ml（14.2％）之间。在6个样品（2.9％）中，计数高于10（4）CFU / 100 ml。 3）在鉴定出的分离株中，肺炎链球菌是主要菌种，尤其是血清群1和5经常被分离。上述发现表明，尽管细菌的数量很低，但军团菌属。遍布日本各地的温泉水。

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