AST of bacteria

Development and validation of EUCAST Disk Diffusion breakpoints

The EUCAST Disk Diffusion test was developed by EUCAST under the auspices of ESCMID and with the help of many laboratories. The help of these laboratories is gratefully acknowledged. Most are listed under the EUCAST laboratory network. The work started in 2009 and is ongoing - new agents, new species, revsied or new breakpoints and new resistance mechanisms necessitates constant development and recalibration. 

 

The files below list material and graphs used for determining zone diameter breakpoints to match MIC breakpoints (Example 1). The files are updated yearly.

Previous graphs are available below the current graphs.

Files from 2021 - Presentations related to MIC breakpoints in the EUCAST breakpoint Table 11 (published 1July, 2021).
New for 2021, apart from introducing revised and new breakpoints for relevant agents and species, are graphs for Achromobacter xylosoxidansBacillus spp., Cefiderocol, Ceftolozane-tazobactam for H. influenzae, Imipenem-relebactam, Lefamulin.

 

Files from 2020 - Presentations related to MIC breakpoints in the EUCAST breakpoint Table 10.

 

Files from 2019 - Presentations related to MIC breakpoints in the EUCAST breakpoint Table 9.

 

Files from 2018 - Presentations related to MIC breakpoints in the EUCAST breakpoint Table 8.1.

 

Files from 2017 - Presentations related to MIC breakpoints in the EUCAST breakpoint Table 7.0.

 

Older versions can be obtained from the web master.