Pathogenic potential and the role of clones and plasmids in beta-lactamase-producing E. coli from chicken faeces in Vietnam

Table 2 Prevalence of presumptive ESBL/AmpC-producers in Escherichia coli isolated from healthy chickens in Vietnam following enrichment with ceftriaxone

Unit of study	No. examined	No. of units with positive culture	No. (%; 95%CI) of units carrying presumptive ESBL/AmpC-producer isolates
Isolates	126	N/A	96 (76.2%; 67.8–84.5)
Farms	5	4	4 (80.0%; 28.4–99.4)

No. Number, 95%CI 95% confidence interval, Presumptive ESBL isolate resistant to ceftriaxone and/or ceftiofur and susceptible to amoxicillin clavulanic acid and cefoxitine, Presumptive AmpC isolate resistant to ceftriaxone in addition to being resistant to amoxicillin clavulanic acid and cefoxitine, Presumptive ESBL/AmpC-producers cumulative of presumptive ESBL-producers and presumptive AmpC-producers, N/A Not applicable as no culture was done

ISSN: 1746-6148