Table 8.
The distribution of HPV16 intratypic variants from recent studies in the USA.
| Study | CANUSA | Vanderbilt [66] | North Carolina [64] | Vanderbilt/Pittsburgh [65] | |||||
|---|---|---|---|---|---|---|---|---|---|
| HPV16 Variant | A | 136 (91.3%) | A1: 58 (42.6%) | 191 (90.1%) | A1: 112 (58.33%) | 91 (85%) | A1: 77 (84.6%) | 347 (90.4%) | A1: 215 (62%) |
| A2: 74 (54.4) | A2: 63 (32.8%) | A2: 9 (9.89%) | A2: 107 (30.8%) | ||||||
| A3: 0 (0%) | A3: 3 (1.56%) | A3: 3 (3.3%) | A3: 3 (0.865%) | ||||||
| A4: 4 (2.94%) | A4: 14 (7.29%) | A4: 2 (2.2%) | A4: 22 (6.34%) | ||||||
| B | 4 (2.68%) | 1 (0.472%) | 1 (0.934%) | 1 (0.26%) | |||||
| C | 1 (0.671%) | 4 (1.89%) | 2 (1.87%) | 6 (1.56%) | |||||
| D | 8 (5.37%) | 16 (7.55%) | 13 (12.1%) | 30 (7.81%) | |||||
| Total | 149 (100%) | 136 (100%) | 212 (100%) | 192 (100%) | 107 (100%) | 91 (100%) | 384 (100%) | 347 (100%) | |