EUCAST Breakpoint Tables v15.0 (2025): Interpretation of MICs and Zone Diameters

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EUCAST Breakpoint Tables: Breakpoint tables for interpretation of MICs and zone diameters, Version 15.0 (valid from 2025-01-01).

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About the document

The EUCAST Breakpoint Tables are the core reference issued by the European Committee on Antimicrobial Susceptibility Testing (EUCAST). They provide clinical breakpoints for:

MIC values (e.g., broth microdilution),
zone diameters in disk diffusion testing,

and are used to categorize AST results (S/I/R) and ensure harmonized interpretation across laboratories.

How to cite

The European Committee on Antimicrobial Susceptibility Testing. Breakpoint tables for interpretation of MICs and zone diameters. Version 15.0, 2025. https://www.eucast.org.