Division 2.5 Antimicrobial resistance testing

The number of Campylobacter isolates to be included in the antimicrobial resistance monitoring per Member State shall be 170. Not more than one isolate per Campylobacter species from the same slaughter batch shall be included in the monitoring.

In those Member States where, in any given year, a lower number of isolates than the target sample size is available, all these isolates shall be included in the antimicrobial resistance monitoring.

In those Member States where a higher number of isolates is available all isolates, or a representative random selection equal or larger than the target sample size, shall be included.

Member States shall test at least the antimicrobials that are specified in Table 1, using the cut-off values given and an appropriate concentration range to determine the susceptibility of Campylobacter.

Dilution methods shall be performed according to the methods described in CLSI guidelines M31-A3 — Third Edition, Performance Standards for Antimicrobial Disk and Dilution Susceptibility Tests for Bacteria Isolated from Animals and M100-S16, Performance Standards for Antimicrobial Susceptibility testing; Sixteenth International Supplement.