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分子分型在醫(yī)院感染控制中的作用(編輯修改稿)

2025-07-09 18:13 本頁面
 

【文章內(nèi)容簡介】 會上討論后決定需基因分型的病原體 任何時候 工作小組要求進行基因分型,臨床微生物實驗室即將菌株提供給 分子分型部門 并執(zhí)行 30 實驗方法 REA analysis restriction of genomic DNA with conventional electrophoresis DNA限制性酶切 31 基因分型相關(guān)費用 ? the cost of equipment, remodeling, ? reagent and other supplies, ? salaries and benefits for three technologists, ? plus all the institutional assessments (., fullcost basis) required to operate a hospital laboratory. ? 儀器配制及維修、實驗室改造等; ? 試劑及其他消耗品 ? 三位實驗員的薪水 ? 所有的評估分析(如fullcost basis )需要動用全院系統(tǒng) 分析方法: t檢驗 成本 效益分析( Analysis of Cost Data) 32 結(jié)果: ? VRE ? initial impetus: serious nosoial problemVRE39。s emergence ? molecular typing results: ? a pattern of numerous “mini” patienttopatient outbreaks of distinct clones ? rather than the spread of a single persisting strain ? VRE ? 最初調(diào)查: VRE醫(yī)院感染嚴重 ? 分型結(jié)果提示: ? 多型別、小規(guī)模( mini) 病人間流行 ? 而不是一個型別的流行 33 ? genomic typing: ? patienttopatient transmission。 ? nosoial outbreak。 ? little evidence of horizontal spread ? Using this information, we determined what intervention was likely to control an apparent outbreak (20). 結(jié)果: ? 基因分型:可將可能的醫(yī)院感染分組: ? 病人之間交叉感染 (high conality, 90%) ? 感染爆發(fā) (moderate clonality, 35%75%) ? 無水平傳播 (20% clonality). ? 在此基礎(chǔ)上,決定采取哪種控制措施 34 high conality, 90% likely patienttopatient transmission moderate clonality, 35%75% possibly nosoial outbreak clonality, 20% unlikely little evidence of horizontal spread similarity 35 ? During the last 2 years of this study, ? 25 possible microbial outbreaks were investigated by the typing laboratory ? VRE, ? fluoroquinoloneresistant P. aeruginosa, ? MRSA, ? E. cloacae, ? C. difficile. ? 通過基因分型,共鑒別25起微生物感染爆發(fā) ?VRE ?氟喹諾酮耐藥的銅綠 ?MRSA ?陰溝 ?難辯梭菌 36 ? Classic Spread of Nosoial Infection ? VRE: 19 strains, from 16 patients, in a 2month period。 ? 14 strains: from one of two clones (88%) ? Indicating: a high probability of nosoial spread ? Review: ? microbiology laboratory: culture requisitionsno close contact. ? Patients: existing direct connection between 11/14 patients (14). ? infection control practices: aborted the outbreak ? 典型的醫(yī)院感染傳播 ? VRE: 19株 , 來自 16個病人, 2個月時間內(nèi) 。 ? 其中十四株:為兩個型別中的一個型別 (88%) ? 高度提示感染傳播 ? 檢查分析 : ? 微生物實驗室 : 培養(yǎng)過程無密切聯(lián)系 ? 患者: 14人中有 11人有直接聯(lián)系 ? 感染控制:中止暴發(fā) 37 Moderate Likelihood of Spread of Nosoial Infections ? During a 1month period, in a specialcare unit ? invasive infections, caused by five isolates ? Klebsiella pneumoniae, ? S. epidermidis, and
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