Affiliation:
1. Clinical Microbiology
2. Infectious Diseases Services, University Hospitals Vírgen del Rocío, Seville, Spain
Abstract
ABSTRACT
We compared the E-test to the broth microdilution method for testing the susceptibility of 115 clinical isolates of
Acinetobacter baumannii
to colistin. Twenty-two (19.1%) strains were resistant to colistin and 93 (80.8%) strains were susceptible according to the reference broth microdilution method. A categorical agreement of 98.2% was found, with only two (1.7%) very major errors. Agreement within 1 twofold dilution between the E-test and the broth microdilution was 16.5%. Complete agreement was found for the strains for which MICs fell within the range of 0.25 to 1 μg of colistin/ml. However, there was poor concordance, particularly in extreme dilutions with higher MICs by the E-test method.
Publisher
American Society for Microbiology
Cited by
94 articles.
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