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. 2018 Oct 13;226:81–88. doi: 10.1016/j.vetmic.2018.10.011

Table 4.

Isolation from individual pigs.

graphic file with name fx1_lrg.gif

A: sample containing rifampicin-resistant, mcr-1-positive E. coli of the expected phylogenetic group, obtained directly.

B: sample containing rifampicin-resistant, mcr-1-positive E. coli of the expected phylogenetic group, obtained after enrichment.

C: sample containing rifampicin-resistant, mcr-1-positive E. coli of an unexpected phylogenetic group and PFGE profile, obtained directly.

D: sample containing rifampicin-resistant, mcr-1-positive E. coli of an unexpected phylogenetic group and PFGE profile, obtained after enrichment (possibly transconjugant).

E: sample containing rifampicin-resistant, mcr-1-negative E. coli of the expected phylogenetic group and PFGE profile, obtained directly (possibly inoculated strain having lost the mcr-1 gene).

F: sample containing rifampicin-resistant, mcr-1-positive E. coli detected on CAO-CV medium.

NS: no sample.

Grey cells: clinical signs (diarrhea or temperature >40.0 °C).

*: pig resistant to E. coli F4.