In vitro susceptibilities of the Bacteroides fragilis group species:: Change in isolation rates significantly affects overall susceptibility data

被引:22
作者
Aldridge, KE [1 ]
O'Brien, M [1 ]
机构
[1] Louisiana State Univ, Hlth Sci Ctr, Dept Med Infect Dis, New Orleans, LA 70112 USA
关键词
D O I
10.1128/JCM.40.11.4349-4352.2002
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
A comparison of antimicrobial susceptibility data of species of the Bacteroides fragilis group for 1989-1990 and 1998-1999 studies showed statistically significant increases or decreases in in vitro activity. Overall significant increases in resistance were noted for ampicillin-sulbactam and clindamycin, while significant decreases in resistance were noted for ertapenem and cefoxitin. Susceptibilities to piperacillin-tazobactam, imipenem, meropenem, and trovafloxacin remained virtually the same for the two studies. Importantly, a change in the rates of isolation of the various species showed the B. fragilis species comprised 58% of the isolates in 1989 to 1990 and 45% of the isolates in 1998 to 1999. This change in rates of isolation of B. fragilis versus non-B. fragilis species had an overall effect on susceptibility data.
引用
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页码:4349 / 4352
页数:4
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