EUCAST News

19 Jun 2022

Warning against using material and devices for AST of species not listed as validated.

General warning against incomplete species and concentration range validation of commercially available susceptibility testing material and devices:
In many cases manufacturers of susceptibility testing material and devices list species for which the product is validated for use. This is in the package insert and by necessity often in fine print.

The user of products is adviced to obtain information on the conditions (atmosphere, temperature etc) and for which species the product is intended for use and which species have not been validated. In the absence of specific information for a species the product should NOT be used.
The user of products should also obtain information from the manufacturer on which range of MIC concentrations (and thus susceptibilities) the product was validated. This is not always clear.