The European Committee on Antimicrobial Susceptibility Testing - EUCAST

EUCAST is a standing committee jointly organized by ESCMID, ECDC and European national breakpoint committees.EUCAST was formed in 1997. It has been chaired by Ian Phillips (1997 - 2001), Gunnar Kahlmeter (2001 - 2012) and Rafael Canton 2012 - ). Its scientific secretary is Derek Brown (1997 - ). Its webmaster is Gunnar Kahlmeter (2001 - ).


EUCAST deals with breakpoints and technical aspects of phenotypic in vitro antimicrobial susceptibility testing and functions as the breakpoint committee of EMA and ECDC. EUCAST does not deal with antibiotic policies, surveillance or containment of resistance or infection control. The Steering Committee is the decision making body. It is supported by a General Committee with representatives from European and other countries, FESCI and ISC. The Steering Committee also consults on EUCAST proposals with experts within the fields of infectious diseases and microbiology, pharmaceutical companies and susceptibility testing device manufacturers.

EUCAST has several subcommittees - see page Subcommittees.

Most antimicrobial MIC breakpoints in Europe have been harmonised by EUCAST. Breakpoints for new agents are set as part of the licensing process for new agents through EMA. EUCAST breakpoints are available in devices for automated susceptibility testing but with some limitations, depending on the system. A disk diffusion susceptibility test method calibrated to EUCAST MIC breakpoints is also available.

EUCAST invites anyone with an interest in antimicrobial agents in general and antimicrobial breakpoints in particular to contact EUCAST, ESCMID or one of the National Breakpoint Committees.




In English: The copyright of all documents, data, presentations and videos published on the EUCAST website remains with EUCAST. All are freely available for re-use if reference to the EUCAST website is given and they are not resold.
Any secondary publication of documents, data, presentations and videos must be referenced with the declaration that "These data have (or this document, presentation or video has) been produced in part under ECDC service contracts and made available at no cost by EUCAST at no cost to the user and can be accessed on the EUCAST website EUCAST recommendations are frequently updated and the latest versions are available at"


En Français: Les droits d’auteurs de tous les documents (présentations, vidéo) établis par l’EUCAST et publiés en ligne sur le site de l’EUCAST restent la propriété de l’EUCAST.  Ces documents (présentation, vidéo) sont libres d’accès et gratuits. Ils peuvent  être utilisés à condition d’indiquer la référence du site EUCAST ; par contre, il n’est en aucun cas permis de les revendre.
 Toute publication se référant à ces données doit comporter la mention suivante “ces données ont été produites par l’EUCAST, notamment lors de collaborations avec l’ECDC. Elles sont accessibles librement et gratuitement grâce au  site de l’EUCAST Les recommandations de l’EUCAST sont fréquemment mises à jour et les dernières versions sont accessibles sur"



Scientific Secretary:

Clinical Data Coordinator:


Last update: 06 April 2013