Culture Collections

Antimicrobial Susceptibility Controls


Antimicrobial Susceptibility PlatePublic Health England's National Collection of Type Cultures (NCTC) offers a wide range of strains that can be used to control antimicrobial susceptibility testing to:

  • monitor test performance and quality of the materials used
  • confirm that the in-use method will detect resistance

NCTC strains are verified by Public Health England's Antimicrobial Resistance and Healthcare Associated Infections Reference Unit (AMRHAI) and are used in diagnostic testing laboratories worldwide.

The strains listed are specifically recommended by one or more of the following:

  • the European Committee on Antimicrobial Susceptibility Testing (EUCAST)
  • Clinical and Laboratory Standards Institute (CLSI)
  • United Kingdom Standards for Microbiology Investigations (formerly National Standard Methods)
  • British Society of Antimicrobial Chemotherapy (BSAC) 







Download the NCTC Antimicrobial Resistance Reference Strains and Antimicrobial Susceptibility Testing Control Strains booklet






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