TABLE 2.

Prevalence of antimicrobial resistance in H. pullorum isolates obtained from free-range and broiler chickens

Phenotype	Overall prevalence of resistance phenotype in population (%)	Estimated fraction due to isolates from:
		Free-range chickens	Broiler chickens
Quinolone/fluoroquinolone resistance
Ciprofloxacin	82	0.55	0.44
Nalidixic acid	100	0.54	0.45
Enrofloxacin	100	0.54	0.45
Sulfonamide/trimethoprim (co-trimoxazole) resistance	100	0.54	0.45
Cephalosporin (cefotaxime) resistance	100	0.54	0.45
Macrolide (clarithromycin) resistance	73	0.50	0.50
Aminoglycoside (neomycin) resistance	0	0	0
Phenicol (chloramphenicol) resistance	0	0	0
Tetracycline resistance
Oxytetracycline	0	0	0
Chlortetracycline	0	0	0
Doxycycline hydrochloride	0	0	0
Miscellaneous (colistin) resistance	0	0	0
ESBL production	100	0.54	0.45
Clavulanic acid resistance	100	0.54	0.45
Multidrug resistance	100	0.54	0.45