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Susceptibility testing of infectious agents and evaluation of performance of antimicrobial susceptibility test devices -- Part 1, 2nd Edition

ISO 20776-1:2019

Susceptibility testing of infectious agents and evaluation of performance of antimicrobial susceptibility test devices -- Part 1, 2nd Edition

This document describes one reference method, broth micro-dilution, for determination of MICs. The MIC can be a guide for the clinician, and reflects the activity of the drug under the described test conditions, by taking into account other factors, such as drug pharmacology, pharmacokinetics, or bacterial resistance mechanisms. This allows categorisation of bacteria as "susceptible" (S), "intermediate" (I), or "resistant" (R). In addition, MIC distributions can be used to define wild type or non-wild type bacterial populations. Although clinical interpretation of the MIC value is beyond the scope of this document, modifications of the basic method are required for certain antimicrobial agent - bacteria combinations to facilitate clinical interpretation. These modifications are included in a separate annex of this document. It is necessary to compare other susceptibility testing methods (e.g. disc diffusion or diagnostic test devices) with this reference method for validation, in order to ensure comparable and reliable results.

This document is available in electronic format only.

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Details

Date of Publication: June 1, 2019

Order Code PDF: ISO207761Ed2E

Order Code Print: print not available

Edition: Second

Pages: 19

ISO 20776-1:2019 Additional Details

Membership discounts cannot be applied to ISO documents because they are not published by CLSI. CLSI is able to offer ISO Technical Committee 212 approved and draft standards through an agreement with the American National Standards Institute.

Technical Committee: ISO/TC 212 Clinical laboratory testing and in vitro diagnostic test systems.