Table 2 Distribution of aatA among 779 extraintestinal pathogenic and commensal Escherichia coli strains
| Â | Total no. of strains per group | Strains positive for aatA | |
|---|---|---|---|
| Â | Â | No. | % |
All strains | 779 | 186 | 23.9 |
Pathotype/ E. coli group | |||
   APEC | 336 | 110 | 32.7 |
   UPEC | 149 | 7 | 4.7 |
   NMEC | 25 | 0 | 0 |
   other ExPEC | 44 | 4 | 9.1 |
   Commensals | 225 | 65 | 28.9 |
Bird | 103 | 58 | 56.3 |
Non-avian animals | 33 | 4 | 12.1 |
Human | 89 | 3 | 3.4 |
Host | |||
   Bird | 438 | 168 | 38.4 |
   Human | 212 | 9 | 3.2 |
   Companion animals | 93 | 3 | 3.2 |
   Other animals | 36 | 6 | 16.7 |
ECOR group | |||
   A | 217 | 49 | 22.6 |
   B1 | 115 | 31 | 27.0 |
   B2 | 314 | 54 | 17.2 |
   D | 133 | 52 | 39.1 |