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題 名 | Longitudinal Analysis of Methicillin Resistant Staphylococcus Aureus Isolates at a Teaching Hospital in Taiwan=利用脈衝電場電泳法及細菌抗藥性分型法來縱向分析臺灣某教學醫院的Methicillin抗藥性金黃色葡萄球菌流行之情形 |
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作 者 | 陳美伶; 張上淳; 潘惠如; 薛博仁; 楊麗瑟; 何憲武; 陸坤泰; | 書刊名 | 臺灣醫學會雜誌 |
卷 期 | 98:6 1999.06[民88.06] |
頁 次 | 頁426-432 |
分類號 | 414.83 |
關鍵詞 | 脈衝電場電泳法; 細菌抗藥性分型法; Methicillin抗藥性金黃色葡萄球菌; Methicillin-resistant staphylococcus aureus; Pulsed-field gel electrophoresis; Antibiotyping; Nosocomial infection; |
語 文 | 英文(English) |
英文摘要 | In Taiwan, the frequency of nosocomial infections caused by methicillin-resistant Staphylococcus aureus (MRSA) has increased rapidly during the past 10 years. To investigate the epidemiology of MRSA infections, a total of 140 MRSA isolates collected at National Taiwan university Hospital from 1992 to 1996 were characterized by pulsed-field gel electrophoresis (PFGE) profiles and antibiotypes, as determined with the disk diffusion method. Among these, isolates, six PFGE types (with 20 subtypes) and six antibiotypes were identified. Antibiotyping proved to be a poor method of epidemiologic analysis, because almost all of the MRSA isolates analyzed shared a very similar multidrug-resistant antibiotype. Most MRSA infections and colonizations in this hospital were due to the spread of strains belonging to three major PFGE types (A, B, and C). However, the major type changed in different years with types A, B, and C being predominant in 1992 through 1993, 1994 through 1995, and 1996, respectively. The three major PFGE types spread easily throughout the hospital wards, presumably carried by health care workers and environmental contamination. Our results demonstrate that there was a dominant strain spreading our hospital each year and the dominant strain may shift in different years. |
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