TABLE 2.

Occurrence of genes of the ColV (cvaC), ColB (cbi), and ColM (cma) operons among APEC isolates

Gene combination% APEC (n = 451)Operon(s) present
cvaC-cbi-cma9.8ColV, ColB, ColM
cvaC-cbi8.6ColV, ColB
cvaC-cma1.5ColV, ColM
cvaC47.5ColV
cbi-cma13.1ColB, ColM
cbi2.9ColB
cma0.0ColM
Absence of cvaC, cbi, cma16.6None