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Antibiotic susceptibility testing

For the determination of antibiotic susceptibility different methods are available: Disc Diffusion Assays with a panel of 36 antibiotics are performed on a number of Quality Control strains as a standard procedure. The results are available in BacDive. This service is offered on request for individual strains (either DSM strains or strains provided by customers) using the standard panel of antibiotic discs. In addition, specific substances provided by the customer can be applied in Disc Diffusion Assays on selected strains. Results are supplied as inhibition zones (in mm) and not interpreted by DSMZ (resistant, sensitive, intermediate).
The broth microdilution method is used to measure (semiquantitatively) the in vitro activity of an antimicrobial agent against a bacterial isolate. Determination of minimal inhibitory concentrations of specific antimicrobial substances (MIC-test) is performed in 96 well plates and can be offered for specific strains and substances.

The price for these services depends on time and effort needed for each individual strain and substance and will be provided upon request.

Required material: A living culture of the strain(s) or the substance(s) intended for testing if not available from DSMZ. 

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