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儿童社区获得性呼吸道感染的病原学研究 被引量:6

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摘要 目的探讨儿童呼吸道感染的病原学特点,以期为临床治疗提供依据。方法采集1784名呼吸道感染患儿咽拭标本常规细菌培养和/或PCR法支原体,K-B法测定流感嗜血杆菌、肺炎链球菌耐药性,以套式-聚合酶链反应及PCR技术进行肺炎链球菌耐药基因TEM基因e、rmB基因和mefA基因检测,加DAN测序分析。结果129例细菌培养阳性,依次为流感嗜血杆菌、肺炎链球菌、肺炎克雷伯杆菌、金黄色葡萄球菌、阴沟肠杆菌、不动杆菌属;153例支原体阳性,以肺炎支原体、人型支原体为主,少数为肺炎衣原体。其中流感嗜血杆菌、肺炎链球菌对青霉素、克林霉素、红霉素、阿奇霉素、阿莫西林/克拉维酸、复方甲基异恶唑、头孢菌素及红霉素等10种常用抗生素均不同程度耐药,但对氯霉素和万古霉素均敏感;肺炎链球菌β内酰胺酶基因(TEM)、红霉素耐药基因(甲基化酶基因ermB)表达阳性,但未表达红霉素耐药基因(外排基因mefA)。结论流血嗜血杆菌和肺炎链球菌本地区呼吸道感染儿童主要致病菌,对常用抗生素有不同程度耐药,肺炎支原体和人型支原体也是重要致病原;肺炎链球菌耐药可能是通过表达TEM基因和ermB基因实现的。
机构地区 无锡市儿童医院
出处 《中国优生与遗传杂志》 2005年第9期95-96,101,共3页 Chinese Journal of Birth Health & Heredity
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