Serotypes | Cases (n) | Site mutation patterns (n) | |||||||
---|---|---|---|---|---|---|---|---|---|
 |  | G120K/A121D | G120K/A121G | G120N/A121D | G120D/A121G | G120D | G120K | G120N | A121G |
IB3 | 56 | 56 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
IB3/6 | 46 | 27 | 19 | 0 | 0 | 0 | 0 | 0 | 0 |
IB4 | 25 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 0 |
IB3/6-IB2 | 62 | 44 | 0 | 9 | 0 | 0 | 9 | 0 | 0 |
IB3/6-IB2# | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 0 |
IB2-IB4-IB2 | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
IA6 | 98 | 0 | 0 | 0 | 87 | 0 | 0 | 0 | 11 |
Total | 310 | 135 | 19 | 9 | 87 | 25 | 9 | 15 | 11 |