Table 3 Bactericidal activity (mean % reduction in CFU) of J14 peptide antisera against Thai GAS isolates with different numbers of M protein C-repeats.
Isolate no. | Number of C-repeat | Bactericidal activity (% reduction) | |||
|---|---|---|---|---|---|
| Â | Â | J14 (KALE) | J14.1 (ADLA) | J14-R1 (KDLA) | J14-R2 (AEHQ) |
1 | single | 52.89 ± 10.36* | 44.91 ± 9.62* | 38.43 ± 8.63* | 58.67 ± 8.54* |
2–8 | two | 84.87 ± 14.49 | 88.51 ± 9.41 | 74.04 ± 20.49 | 88.73 ± 19.52 |
9–20 | three | 83.60 ± 13.73 | 72.94 ± 26.88 | 77.49 ± 22.44 | 79.95 ± 21.07 |