Table 1.
Distribution of the 123 Streptococcus agalactiae strains studied and the three reference strains (NEM316, A909, 2603V/R), as a function of capsular serotype and origin, within MLST clonal complexes (CC).
| Clonal Complex (No. of strains) |
Sequence Type (ST) (No. of strains) |
Capsular serotype (No. of strains) |
No. of invasive strains |
No. of colonizing strains | |||
|---|---|---|---|---|---|---|---|
| NN |
Ad |
||||||
| Blood culture | CSF | Blood culture | CSF | ||||
| CC-1 (26) | ST-1 (16) ST-2 (5) ST-173 (1) ST-196 (3) ST-370 (1) |
V (13) II (2) NT (1) Ia (1) Ib (1) II (1) NT (2) V (1) Ib (1) IV (2) V (1) |
– – – – – |
1 – – – – |
6 – 1 – – |
– – – – – |
9 5 – 3 1 |
| – | 1 | 7 | – | 18 | |||
|
CC-10 (25) |
ST-5 (1) ST-6 (1) ST-7 (1) ST-8 (8) ST-10 (5) ST-12 (4) ST-41 (2) ST-255 (1) ST-390 (1) |
Ib (1) Ib (1) NT (1) Ib (7) NT (1) Ib (1) IV (1) V (1) NT (2) Ib (3) III (1) Ib (3) III (1) Ib (1) Ib (1) |
– – – – – – – – – |
– 1 – 1 – – – – – |
– – – 1 2 3 – 1 – |
– – – – – – – – – |
1 – 1 6 3 1 2 – 1 |
| 2 | 7 | – | 15 | ||||
| Strain A909 | ST-7 | Ia | |||||
| CC-17 (30) | ST-17 (30) | III (30) | 6 | 18 | 1 | – | 5 |
|
CC-19 (14) |
ST-19 (10) ST-28 (1) SR-386 (1) ST-389 (1) |
III (9) NT (1) V (1) II (1) III (1) |
– – – – |
3 – – – |
3 – 1 – |
1 – – – |
3 1 – 1 |
| – | 3 | 4 | 1 | 5 | |||
| Strain 2603V/R | ST-110 | V | |||||
|
CC-23 (26) |
ST-23 (17) ST-144 (1) ST-220 (2) ST-223 (1) ST-305 (1) ST-385 (1) ST-391 (1) ST-481 (1) |
Ia (15) III (2) Ia (1) Ia (2) Ia (1) Ia (1) Ia (1) III (1) III (1) |
2 – – – – – – 1 |
3 – – – – – – – |
5 – – – – 1 – – |
2 – – – – – – – |
5 1 2 1 1 – 1 – |
| 3 | 3 | 6 | 2 | 11 | |||
| Strain NEM316 | ST-23 | III | |||||
| Singletons (5) | ST-388 (2) ST-4 (1) ST-24 (1) ST-130 (1) |
V (2) Ia (1) Ia (1) V (1) |
– – – – |
– – 1 – |
– 1 – – |
– – – – |
2 – – 1 |
| – | 1 | 1 | – | 3 | |||
| Total | 9 | 28 | 26 | 3 | 57 | ||
NN, neonates; Ad, adults; CSF, cerebrospinal fluid.
NT, non-typable.