Table 3.
Prevalence of virulence genes in E. coli isolated from the feces of humans and various animals
| Sourcea (no. of isolates) | No. of positive isolates (%)b |
||||||
|---|---|---|---|---|---|---|---|
| stx1 | stx2 | stx1 plus stx2 | eae | eae plus EAF | STh | STp | |
| Human (25) | 2 (8) | 6 (24) | 2 (8) | ||||
| Bison (11)* | 5 (45.45) | ||||||
| Black bear (48) | |||||||
| Buffalo (5)* | 1 (20) | ||||||
| Cow (49)* | 8 (16.32) | ||||||
| Coyote (121) | 5 (4.13) | 14 (11.57) | 7 (5.78) | ||||
| Deer (89)* | 1 (1.12) | 1 (1.112) | |||||
| Dog (48) | 1 (2.08) | 20 (41.66) | 1 (2.08) | 2 (4.16) | |||
| Horse (19) | 10 (50) | ||||||
| Donkey (25) | 5 (20) | 1 (4) | |||||
| Bighorn sheep (16)* | |||||||
| Llama (5) | |||||||
| Pony (19) | 5 (26.31) | 1 (5.26) | |||||
| Rabbit (5) | 1 (20) | 3 (60) | |||||
| Mountain goat (20)* | 1 (5) | 1 (5) | 1 (5) | ||||
| Cougar (20) | |||||||
| Elk (29)* | 2 (7) | ||||||
| Grizzly bear (20) | 1 (5) | ||||||
| Ground hog (19) | 4 (21.05) | 3 (15.78) | |||||
| Total (n = 593) | 1 (0.1) | 33 (5.56) | 9 (1.5177) | 60 (10.11) | 8 (1.349) | 2 (2.337) | 2 (0.337) |
a
*, ruminants (all other animal sources are nonruminants).
b
No isolates were positive for LT or ipaH.