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老年呼吸道感染病人流感和副流感嗜血杆菌检测及耐药性分析

Acta Academiae Medicinae Qingdao Universitatis(2012)

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Abstract
目的了解老年呼吸道感染病人流感、副流感嗜血杆菌临床分离菌株的耐药状况,为临床合理用药提供指导。方法收集老年病人痰液及咽拭子标本408份,用手工法和MicSCAN4半自动细菌分析仪对菌株进行分离与菌种鉴定,用纸片琼脂扩散(K-B)法进行药敏试验,采用头孢硝噻吩滤纸片法进行β-内酰胺酶检测。结果临床分离嗜血杆菌135株,其中流感嗜血杆菌61株,副流感嗜血杆菌74株,β-内酰胺酶产酶率分别为52.5%和51.4%,对氨苄西林敏感率分别为42.6%和48.6%,对复方磺胺甲唑的敏感率分别为31.1%和27.0%。流感嗜血杆菌对头孢噻肟、头孢呋辛、阿奇霉素、左旋氧氟沙星、氯霉素的敏感率均达80%以上,副流感嗜血杆菌对头孢噻肟、头孢呋辛、阿奇霉素、氯霉素的敏感率均达80%左右。结论老年病人呼吸道嗜血杆菌感染中副流感嗜血杆菌高于流感嗜血杆菌,两者均有较高的产酶率,首选药物为头孢噻肟、头孢呋辛。氨苄西林、复方磺胺甲唑已不适用于经验治疗。
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Key words
respiratory tract infections,haemophilus parainfluenzae,microbial sensitivity tests,drug resistance,bacterial,haemophilus influenzae
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