Document M45 Pdf | Clsi

Clinical microbiology laboratories frequently encounter common pathogens like E. coli or Staphylococcus aureus , which are well-documented in standard AST protocols. However, or fastidious bacteria—which have complex nutritional requirements or occur rarely in clinical specimens—require modified testing conditions. The M45 document provides:

: Listeria monocytogenes , Corynebacterium species, Bacillus species (excluding B. anthracis ), and Erysipelothrix rhusiopathiae . clsi document m45 pdf

The document, titled Methods for Antimicrobial Dilution and Disk Susceptibility Testing of Infrequently Isolated or Fastidious Bacteria , is a specialized guideline developed by the Clinical and Laboratory Standards Institute (CLSI) . It serves as a critical extension to the primary antimicrobial susceptibility testing (AST) standards, specifically covering organisms that are not included in the more common CLSI M100 supplement. Core Purpose and Scope The M45 document provides: : Listeria monocytogenes ,