TABLE 2.
Number of C- and S-BPTs of 264 Escherichia coli strains found in all four STPs and their distribution among different phylogenetic groups
| Location | No. of BPTs (no. of isolates) of phylogenetic group: |
Total no. (no. of isolates) of: |
||||
|---|---|---|---|---|---|---|
| A | B1 | B2 | D | C-BPTs | S-BPTsa | |
| STP 1 | 7 (7) | 14 (66) | 25 (57) | 20 (103) | 27 | |
| STP 2 | 3 (8) | 11 (45) | 9 (21) | 14 (65) | 9 | |
| STP 3 | 1 (1) | 2 (11) | 2 (2) | 3 (7) | 4 (17) | 4 |
| STP 4 | 4 (4) | 1 (21) | 2 (3) | 7 (11) | 4 (29) | 10 |
| Total | 15 (20) | 3 (32) | 29 (116)b | 44 (96)c | 42 (215) | 50 |
| % of isolates | 7.6 | 12.1 | 43.9 | 36.4 | 81.4 | 18.9 |
| % of BPTs | 16.5 | 3.2 | 31.9 | 48.4 | 46.2 | 54.3 |
a
Only the numbers of S-BPTs tested for phylogenetic grouping are presented.
b
P < 0.0001 for the number of isolates belonging to B2 versus the number belonging to both A and B1.
c
P < 0.0001 for D versus A and B1 combined.