TABLE 2.

Prevalence of cmlA, cat-2, and flo genes in CHL-resistant swine E. coli

Resistance genotypeMIC (μg/ml)No. of isolates positive for resistance gene/no. of isolates tested
CHLFFN
cmlA≥328-≥1643/48
cmlA, cat-2328-164/48
flo2562561/48