| Value | Category | Cases | |
|---|---|---|---|
| 1 | Sexual intercourse | 1898 |
4%
|
| 2 | Many partners | 15269 |
31.9%
|
| 3 | Prostitutes | 11458 |
23.9%
|
| 4 | Not using condom | 3778 |
7.9%
|
| 5 | Homosexual contact | 1077 |
2.2%
|
| 6 | Blood transfusion | 9694 |
20.2%
|
| 7 | Injection | 3709 |
7.7%
|
| 8 | Kissing | 131 |
0.3%
|
| 9 | Mosquito bites | 178 |
0.4%
|
| 10 | Circumcision | 469 |
1%
|
| 11 | Supernatural | 123 |
0.3%
|
| 12 | Other | 130 |
0.3%
|