Methodology and Instructions Although the general principles for the development of breakpoints are similar to those for bacteria, susceptibility testing of fungi needs special attention. This page lists the documents that address the methods needed for testing of different fungi. AST of Yeasts…
Get to know moreRapid AST in blood culture For selection of an efficacious antibiotic therapy rapid susceptibility results are desirable, but the usual overnight incubation precludes rapid results. EUCAST RAST fills this gap by providing results within 4 to 8 hours of incubation. The method is validated for…
Get to know moreECOFFinder. The previously available ECOFFinder software is no longer accessible on the EUCAST website because, according to EUCAST procedures ( SOP 10.2), setting ECOFFs or TECOFFs on single or already aggregated distributions is not acceptable according to EUCAST recommendations. Software and…
Get to know moreA few weeks ago, we informed EUCAST users, that the Warning against bioMerieux AST material for colistin, still stands. The item referred (by a link) to the EUCAST Warnings page where it was made clear exactly which material was malfuntioning and should have been withdrawn by bioMerieux. However,…
Get to know moreGeneral Committee Meetings The EUCAST yearly General Committee meetings are open meetings, held during yearly ESCMID-Global conferences. Everyone interested in breakpoints and AST methods are welcome. Meeting minutes EUCAST General Committee meeting 2024 (ECCMID, Barcelona) EUCAST General Committee…
Get to know moreEUCAST guidance on how to determine MIC values and develop distributions (and zone diameter distributions) for new agents in preparation for EUCAST and EMA evaluation. The development of new agents requires agreement and acceptance of the data generated in support of decisions on clinical…
Get to know moreRationale Documents The EUCAST Rationale Documents currently available are listed below. Rationale documents for antifungal agents are listed elsewhere, see " Antifungal rationale documents ". A template for companies aiming to create a comprehensive rationale document for new agents or for existing…
Get to know moreThis is to clarify how "susceptibility (S and I)" and "resistance (R)" should be reported in AMR surveillance with the EUCAST definitions of S I and R . With the EUCAST definitions, the tradition to report "non-susceptibility" as the joint rate of %I and %R is abandoned. Previously (pre-2019) it was…
Get to know moreResistance Detection in RAST Some resistance mechanisms require other than clinical breakpoints for sensitive detection. EUCAST has validated using separate screening cut-offs for the detection of E. coli and K. pneumoniae with ESBL or carbapenemases. Screening for resistance mechanisms using RAST…
Get to know morePublications and Presentations 2025 2023 2022 2020 Archive The Mycobacterium tuberculosis complex based on the EUCAST reference protocol. Mansjö M, Espinosa-Gongora C, Samanci I, Groenheit R, Werngren J. Antimicrob Agents Chemother. 2025 Feb 13;69(2):e0094624. doi: 10.1128/aac.00946-24. Epub 2024…
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