TABLE 3.
Phylogenetic distribution of VF genes within subcluster IIIC among 62 E. coli bacteremia isolatesa
| Associated trait | No. (% of 62) | Prevalence of associated trait (no. [%]) for lineages:
|
|||
|---|---|---|---|---|---|
| 39 and 40 (n = 7) | 41–44 (n = 15) | 45–48 (n = 24) | 49–53 (n = 15) | ||
| papA | 56 (90) | 7 (100) | 15 (100) | 19 (79)b | 15 (100) |
| F7-1 | 1 (2) | 1 (14) | 0 | 0 | 0 |
| F7-2 | 8 (13) | 0 | 0 | 8 (33)d | 0 |
| F10 | 22 (35) | 5 (71) | 0d | 7 (29) | 10 (67)c |
| F11 | 5 (9) | 1 (14) | 0 | 0 | 4 (27)c |
| F12 | 2 (3) | 0 | 0 | 2 (8) | 0 |
| F13 | 3 (5) | 1 (14) | 0 | 2 (8) | 0 |
| F14 | 6 (10) | 5 (71)d | 0 | 1 (4) | 0 |
| F15 | 2 (3) | 1 (14) | 0 | 0 | 1 (7) |
| F16 | 2 (3) | 1 (14) | 0 | 1 (4) | 0 |
| F48 | 16 (26) | 0 | 14 (93)d | 0d | 2 (13) |
| papG | 50 (81) | 7 (100) | 15 (100)b | 14 (58)d | 15 (100)b |
| Allele II | 19 (31) | 1 (14) | 0c | 10 (42) | 8 (53)b |
| Allele III | 26 (42) | 0b | 15 (100)d | 4 (17)c | 7 (47) |
| Allele II + III | 6 (10) | 6 (86)a | 0 | 0 | 0 |
| sfa and/or foc | 46 (74) | 5 (71) | 13 (87) | 17 (71) | 11 (73) |
| sfaS | 20 (32) | 1 (14) | 11 (73)d | 1 (4)d | 7 (47) |
| focG | 29 (47) | 5 (71) | 3 (33)b | 16 (67)b | 5 (33) |
| iha | 29 (47) | 7 (100)c | 1 (7)d | 17 (71)c | 4 (27) |
| nfa | 6 (10) | 0 | 4 (27)b | 1 (4) | 0 |
| hly | 48 (77) | 6 (86) | 15 (100)b | 17 (71) | 10 (67) |
| cnf1 | 37 (60) | 6 (86) | 15 (100)d | 9 (38)c | 7 (47) |
| cdtB | 8 (13) | 6 (86)d | 0 | 2 (8) | 0 |
| iroN | 44 (71) | 5 (71) | 10 (67) | 14 (58) | 14 (93)b |
| fyuA | 62 (100) | 7 (100) | 15 (100) | 24 (100) | 15 (100) |
| iut | 36 (58) | 7 (100)b | 0d | 20 (83)c | 9 (60) |
| kpsMIITII | 60 (97) | 7 (100) | 14 (93) | 24 (100) | 15 (100) |
| K1 | 11 (18) | 0 | 2 (13) | 1 (4)b | 8 (53)d |
| K2e | 9 (15) | 1 (14) | 0 | 8 (33)d | 0 |
| cvaC | 5 (8) | 0 | 0 | 0 | 4 (27)c |
| traT | 14 (23) | 1 (14) | 5 (33) | 3 (13) | 5 (33) |
| ibeA | 5 (8) | 0 | 0 | 1 (4) | 4 (27)c |
| PAI | 62 (100) | 7 (100) | 15 (100) | 24 (100) | 15 (100) |
a
Data for papG alleles, sfa and/or foc, afa and/or dra, hly, iut, bma, and nfa are as reported elsewhere (20, 45). One strain within subcluster C (lineage 54) fell outside the four major groups of lineages. Thus, lineages 39 to 53 account for only 61 strains, whereas the total in subcluster C is 62 strains.
b
P < 0.05, indicated group versus all other strains.
c
P ≤ 0.01, indicated group versus all other strains.
d
P ≤ 0.001, indicated group versus all other strains.
e
Strains were considered K2 positive if positive for kpsMIITII by blot but not PCR.