Table 4. Phylogenetic groups/subgroups of Escherichia coli isolated from 260 pneumonia patients requiring mechanical ventilation, France, 2012–2014*.
| Phylogroup | No. (%) |
|---|---|
| A |
22 (8.5) |
| B1 | 26 (10) |
| CC87† | 11 (42.3) |
| Non-CC87 |
15 (57.7) |
| B2 | 155 (59.6) |
| I ST131† | 18 (11.6) |
| I non-ST131 | 6 (3.9) |
| II | 40 (25.8) |
| III | 16 (10.3) |
| IV | 20 (12.9) |
| V | 1 (0.6) |
| VI | 14 (9) |
| VII | 3 (1.9) |
| IX | 14 (9) |
| Unassigned |
23 (14.8) |
| C |
20 (7.7) |
| D | 25 (9.6) |
| CGA† | 20 (80) |
| Non-CGA |
5 (20) |
| F |
11 (4.2) |
| Clade I | 1 (0.4) |
*Nosocomial isolates encompass ventilator-associated pneumonia and hospital-acquired pneumonia isolates. CC87, clonal complex 87 (sequence type complex [STc] 155) (19); CGA, clonal group A (STc69) (21); ST131, sequence type 131. The correspondence with the Achtman MLST schema is as follows: subgroup I, STc131; subgroup II, STc73; subgroup III, STc127; subgroup IV, STc141; subgroup V, STc144; subgroup VI ,STc12; subgroup VII, STc14; subgroup IX, STc95. No isolate belonged to subgroup VIII (STc452), X (STc372), or E phylogroup (22). †Proportions of subgroups are reported as fractions of the respective phylogroups.