| No virus spread | First subtype only (%) | Second subtype only (%) | Both subtypes (with co-infection events) (%) |
---|---|---|---|---|
4-BR system | 11 | 23 | 19 | 47 (45) |
5-BR system | 10 | 21.5 | 22.5 | 46 (46) |
7-BR system | 5.5 | 18 | 24 | 52.5 (49) |
10-BR system | 2 | 5 | 9 | 84 (84) |
20-BR system | 1 | 7 | 8 | 84 (84) |