TY - JOUR
T1 - Lack of increase in vancomycin resistance of pediatric methicillin- resistant staphylococcus aureus isolates from 2000 to 2007
AU - Zheng, Xiaotian
AU - Qi, Chao
AU - Arrieta, Mollyn
AU - O'Leary, Amanda
AU - Wang, Deli
AU - Shulman, Stanford T.
PY - 2010/9
Y1 - 2010/9
N2 - We retrospectively studied 306 pediatric methicillin-resistant Staphylococcus aureus isolates collected in 2000/2001, 2003, 2005, and 2007 for possible vancomycin minimum inhibitory concentration (MIC) change over time using Etest, agar dilution, and broth microdilution (MicroScan) methods. Vancomycin MICs did not increase. Inducible clindamycin resistance declined significantly (53%-0%, P < 0.001). Considerably different proportions of isolates with vancomycin MIC = 2 μg/mL were identified by different laboratory methodologies, suggesting the need for caution in their interpretation and in comparing published data. During this period the proportion of USA300 strains increased dramatically.
AB - We retrospectively studied 306 pediatric methicillin-resistant Staphylococcus aureus isolates collected in 2000/2001, 2003, 2005, and 2007 for possible vancomycin minimum inhibitory concentration (MIC) change over time using Etest, agar dilution, and broth microdilution (MicroScan) methods. Vancomycin MICs did not increase. Inducible clindamycin resistance declined significantly (53%-0%, P < 0.001). Considerably different proportions of isolates with vancomycin MIC = 2 μg/mL were identified by different laboratory methodologies, suggesting the need for caution in their interpretation and in comparing published data. During this period the proportion of USA300 strains increased dramatically.
KW - D-zone test
KW - MRSA
KW - inducible clindamycin resistance
KW - pediatric
KW - vancomycin
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U2 - 10.1097/INF.0b013e3181e284a6
DO - 10.1097/INF.0b013e3181e284a6
M3 - Article
C2 - 20453708
AN - SCOPUS:77955985432
SN - 0891-3668
VL - 29
SP - 882
EP - 884
JO - Pediatric Infectious Disease Journal
JF - Pediatric Infectious Disease Journal
IS - 9
ER -