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General

Important Additional Information

Important Additional Information Expected phenotypes, expert rules, and detection of resistance mechanisms are important complements to susceptibility testing and should be consulted before releasing results. Expected phenotypes help with validation of identification and susceptibility tests. Expert…

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About EUCAST

About The European Committee on Antimicrobial Susceptibility Testing (EUCAST) is a scientific committee formed in 1997. EUCAST is jointly organised by the European Society for Clinical Microbiology and Infectious Diseases (ESCMID), the European Centre for Disease Prevention and Control (ECDC), and…

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Bacteria

Bacteria Most of EUCAST’s work is dedicated to defining breakpoints for bacteria that cause infections in humans. How to Use This Section: This page gives you access to information and services related to pathogenic bacteria. Important: All resources here are complementary. Please review them…

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Media Preparation

Media Preparation Media preparation for EUCAST disk diffusion testing and for determination of MIC values by the broth microdilution method Version 7.0, January 2022 Download PDF EUCAST antimicrobial susceptibility testing is based on MH agar and MH broth, without supplements for non-fastidious…

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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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Resistance Detection

Resistance Detection Successful treatment of infectious diseases relies on knowledge and understanding of when antimicrobial resistance is an expected phenotype of the organism, and when resistance to antimicrobial agents may develop. The following documents provide up-to-date advice on how to…

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Definition of S, I and R

Definitions of S, I and R EUCAST in 2019 changed the definitions of susceptibility testing categories S, I and R as shown below. Results of several consultations on the new definitions are available on the EUCAST website under “Consultations”. S - Susceptible , standard dosing regimen: A…

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Disk Diffusion and Quality Control

Disk Diffusion and Quality Control EUCAST have developed standardised disk diffusion methods for both aerobic and anaerobic bacteria. EUCAST antimicrobial susceptibility testing is performed with phenotypic methods, reference broth microdilution or standardised disk diffusion. The basis of all…

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Education

Education Stay informed on EUCASTs upcoming and previous educational activities here. If you have any feedback or ideas, please contact us via the contact form in the bottom of the page. Upcoming Activites Upcoming activites (e.g. webinars) will be announced here. Previous Activities Previous…

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IVDR and EUCAST

IVDR and EUCAST The IVDR ( EU regulation 2017/746 on in vitro diagnostic medical devices ) was published in April 2017 and is closely aligned to the EU regulation on medical devices. EUCAST receives many queries on how this regulation affects EUCAST recommendations and guidance. After having…

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