Table 2.
emm clusters of group A Streptococcal strains isolated from children in New Zealand, 2015
| Cluster | Pharyngeal isolates, Auckland (n = 246) (%) | Skin isolates, Auckland (n = 104) (%) |
Pharyngeal isolates, Dunedin (n = 103) (%) | P a |
|---|---|---|---|---|
| A-C2 | - | 1 (1) | - | NS |
| A-C3 | 24 (10) | 4 (4) | 7 (7) | NS |
| A-C4 | 30 (12) | 1 (1) | 21 (21) | <0.01 |
| A-C5 | 1 (<1) | - | 1 (<1) | NS |
| D1 | 6 (2) | - | - | NS |
| D2 | 9 (4) | 5 (5) | - | NS |
| D3 | 1 (<1) | - | - | NS |
| D4 | 38 (15) | 37 (36) | 3 (3) | <0.01 |
| E1 | 4 (10) | 1 (1) | 6 (6) | NS |
| E2 | 13 (5) | 9 (9) | 3 (3) | NS |
| E3 | 56 (23) | 18 (17) | 4 (4) | <0.01 |
| E4 | 24 (10) | 6 (6) | 51 (50) | <0.01 |
| E5 | 1 (<1) | - | - | NS |
| E6 | 27 (11) | 19 (18) | 7 (7) | 0.018 |
| M105 | 2 (<1) | - | - | NS |
| M111 | 3 (1) | - | - | NS |
| M19 | 1 (<1) | 2 (2) | - | NS |
| M218 | 2 (<1) | - | - | NS |
| M233 | 1 (<1) | - | - | NS |
| M74 | 3 (1) | 1 (1) | - | NS |
a Significance values determined by 3 × 2 χ 2 test
NB–emm clusters are based on those proposed by Sanderson-Smith et al. [4]