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General

Updated version of "Guidance on intravenous use of fosfomycin"

The guidance document on "Intravenous use of fosfomycin" updated. See guidance documents .

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Expert Rules

Expert Rules EUCAST expert rules (listed below) are a tabulated collection of expert knowledge on interpretive rules. These rules should be applied to antimicrobial susceptibility testing to rationalise testing, reduce errors, and make appropriate recommendations for reporting particular…

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Guidance Documents

Guidance Documents All Antibiotic Infection Methodology Pathogen Regulatory Document Title Date of Publication Previous Versions and Notes Infective endocarditis - EUCAST guidance on the reporting of antimicrobial susceptibility testing results July 2025 December 2024 Daptomycin in endocarditis and…

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What to do when there are no breakpoints - revised!

The EUCAST guidance on what to do when there are no breakpoints in the breakpoint table (species lacking, agent lacking, IE, dash etc) has been thoroughly revised in February 2024. Go to the EUCAST webpage for this and other Guidance documents .

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MIC Determination

MIC Determination of non-fastidious and fastidious organisms The EUCAST recommendations for MIC determination for non-fastidious organisms are in complete agreement with the recommendations from the International Standards Organisation ( ISO ). For fastidious organisms (streptococci including S.…

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Tigecycline rationale and guidance documents

Tigecycline rationale and guidance documents were revised.

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Clinical Breakpoint Tables

Clinical Breakpoint Tables Breakpoints are part of a system for categorizing microorganisms as: Susceptible (S) Susceptible, increased exposure (I) Resistant (R) To antimicrobial agents approved for use in the treatment of infectious diseases. Information of the structure of the tables and how they…

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The use of cefotaxime and ceftriaxone in S. aureus infections - guidance document

The use of cefotaxime and ceftriaxone in infections caused byS. aureus - a new guidance document.

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When there are no breakpoints - cefiderocol added

The guidance document on " What to do when there are no breakpoints " has been updated with recommendations for cefiderocol.

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EUCAST - Home

The European Committee on Antimicrobial Susceptibility Testing - EUCAST EUCAST is a scientific committee formed in 1997 and is jointly organized by ESCMID , ECDC and European national breakpoint committees. EUCAST develops antimicrobial susceptibility testing methodology, interpretative criteria and…

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