Publication of Updated EUCAST Clinical Breakpoint tables, version 16.1.

Published at 2026.07.15 by Kristján Orri Helgason

An updated version (16.1) of the EUCAST clinical breakpoint tables has been published, including breakpoints for additional anaerobic bacterial species. New breakpoints are now available for Fusobacterium nucleatum, Clostridium innocuum, Clostridium ramosum, Clostridium septicum, Clostridium tertium, Cutibacterium avidum, Finegoldia species, Parvimonas micra, Peptostreptococcus anaerobius and Peptoniphilus species. Existing breakpoints for some agents against Cutibacterium acnes and Fusobacterium necrophorum have also been revised. Also updated is the EUCAST disk diffusion methodology for rapidly growing anaerobic bacteria (v3.0) however the dosages tab remains unchanged (v16.0). An updated version (16.1) of the clinical breakpoint tables has been published, including breakpoints for additional anaerobic bacterial species. New breakpoints are now available for Fusobacterium nucleatum, Clostridium innocuum, Clostridium ramosum, Clostridium septicum, Clostridium tertium, Cutibacterium avidum, Finegoldia species, Parvimonas micra, Peptostreptococcus anaerobius and Peptoniphilus species. Existing breakpoints for some agents against Cutibacterium acnes and Fusobacterium necrophorum have also been revised. Also updated is the EUCAST disk diffusion methodology for rapidly growing anaerobic bacteria (v3.0) however the dosages tab remains unchanged (v16.0).

Link to the updated version: EUCAST: Clinical Breakpoint Tables

The NordicAST-table version 16.1 will be published September 1st at the latest.