TABLE 5.

Number and percentage of virulence genes present in C. jejuni isolated from conventional and NAE^a chicken meat samples and NAE farm samples

Virulence gene	No. of positive isolates (%) in:
	Conb meat (n = 22)	NAE meat (n = 20)	Cloaca swab (n = 12)	Feces (n = 15)	Litter (n = 13)
cadF	16 (72.7)	16 (80.0)	2 (16.7)	4 (26.7)	0 (0.0)
jlpA	15 (68.2)	15 (75.0)	2 (16.7)	4 (26.7)	0 (0.0)
pebA	9 (40.9)	12 (60.0)	2 (16.7)	1 (6.7)	0 (0.0)
porA	10 (45.5)	11 (55.0)	2 (16.7)	1 (6.7)	0 (0.0)
pldA	21 (95.5)	17 (85.0)	2 (16.7)	3 (20.0)	0 (0.0)
ciaB	16 (72.7)	11 (55.0)	2 (16.7)	4 (26.7)	0 (0.0)
cdtA	16 (72.7)	14 (70.0)	2 (16.7)	4 (26.7)	0 (0.0)
cdtB	18 (81.8)	14 (70.0)	2 (16.7)	4 (26.7)	0 (0.0)
cdtC	16 (72.7)	14 (70.0)	2 (16.7)	4 (26.7)	0 (0.0)
flaAB	16 (72.7)	16 (80.0)	2 (16.7)	2 (13.3)	0 (0.0)
flgB	21 (95.5)	17 (85.0)	2 (16.7)	3 (20.0)	0 (0.0)
flhB	15 (68.2)	15 (75.0)	2 (16.7)	4 (26.7)	0 (0.0)
virB9	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)

^aNAE, no-antibiotics-ever-raised chicken.

^bCon, conventionally raised chicken.