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长沙地区呼吸道感染流感嗜血杆菌的分子流行病学特征及耐药性分析 被引量:10

Analysis on molecular epidemiologic feature and drug resistance of Haemophilus influenzae in respiratory tract infections in Changsha
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摘要 目的分析2004年1月~2006年6月长沙地区呼吸道感染患者标本流感嗜血杆菌的耐药情况。方法采用KB法检测106株临床分离的流感嗜血杆菌(Hi)的耐药性,nitrocefin法检测β-内酰胺酶,PCR检测流感嗜血杆菌的TEM和ROB型耐药基因。结果本地分离的流感嗜血杆菌对亚胺培南、阿奇霉素、氨苄西林/舒巴坦、环丙沙星、头孢噻肟、头孢呋辛、氨苄西林、氯霉素和复方磺胺甲噁唑的耐药率分别是:0、0、0、5.6%、22.6%、25.5%、34.O%、43.4%、53.8%。在106株流感嗜血杆菌中,共检出36株氨苄西林耐药,其中35株β-内酰胺酶检测为阳性,均对氨苄西林耐药;1株为氨苄西林耐药而β-内酰胺酶阴性。PCR检测有34株β-内酰胺酶阳性和4株β-内酰胺酶阴性的流感嗜血杆菌为TEM型基因,未发现ROB型基因菌株,1株为非TEM非ROB型产β-内酰胺酶流感嗜血杆菌。结论本地流行的流感嗜血杆菌的主要耐药机制是产TEM型β-内酰胺酶,对复方磺胺甲噁唑和氯霉素的耐药率较高,不适宜用于流感嗜血杆菌引起感染的治疗,对头孢噻肟、头孢呋辛、亚胺培南、阿奇霉素和环丙沙星有较高的抗菌活性,临床可加强药敏监测,合理选用。
出处 《中国抗生素杂志》 CAS CSCD 北大核心 2008年第11期701-702,709,共3页 Chinese Journal of Antibiotics
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