Division 5.2 Quantitative method to assess the proportion of ESBL- or AmpC-producing E. coli

Member States may decide to assess the proportion of ESBL- or AmpC-producing E. coli compared to the total E. coli isolates present in a sample. In this case they shall enumerate ESBL- or AmpC-producing E. coli and the total E. coli by using dilution methods and subsequent by plating onto selective media and non-selective media, according to the protocols of the EURL for AMR^f1.