Age related differences in phylogenetic diversity, prevalence of Shiga toxins, Intimin, Hemolysin genes and select serogroups of Escherichia. coli from pastured meat goats detected in a longitudinal cohort study

Table 1 E. coli virulence genes screened and number of positives isolates in different pastured goat age groups

	Pre-weaned kids	Nursing does	Weaning period (kids)	Six months	Yearling	All adults	Diarrhea
Virulence genes	n = 75	n = 53	n = 163^b	n = 66	n = 41	n = 102^a	n = 47
Stx1	30 (40)	7 (13)	99 (61)	30 (45)	13 (31)	27 (26)	23 (49)
Stx2 (EHEC type)	0	0	24 (15)	0	0	0	8 (17)
Stx2 (other)	10 (13)	2 (4)	101 (62)	12 (18)	13 (31)	7 (7)	26 (55)
EaeA	25 (33)	0	29 (22)	0	0	2 (2)	3 (6)
Hly	28 (37)	12 (23)	74 (45)	29 (44)	13 (31)	33 (32)	17 (36)

^aincludes the nursing does isolates; () values in brackets represent percentages. ^b value in () in this column represent the mean prevalence of the four sampling days

ISSN: 1746-6148