| αDF-genes | Asymptomatic | Non-RVVC | RVVC |
| α-DF1 | 4 | L (3), M (1) | M (5), S (4) |
| α-DF3 | 4 | L (1) | S (1) |
| α-DF1/α-DF3 | 14 | L (4), M (10) | M (4) |
| No PCR-product | 14 | L (3), M (15), S (1) | |
| Total | 36 | L (11), M (26), S (1) | M (9), S (5) |