| Value | Category | Cases | |
|---|---|---|---|
| 1 | Sexual intercourse | 1583 |
3.5%
|
| 2 | Many partners | 2852 |
6.2%
|
| 3 | Prostitutes | 9296 |
20.4%
|
| 4 | Not using condom | 4156 |
9.1%
|
| 5 | Homosexual contact | 1329 |
2.9%
|
| 6 | Blood transfusion | 12399 |
27.2%
|
| 7 | Injection | 10775 |
23.6%
|
| 8 | Kissing | 455 |
1%
|
| 9 | Mosquito bites | 602 |
1.3%
|
| 10 | Circumcision | 1474 |
3.2%
|
| 11 | Supernatural | 346 |
0.8%
|
| 12 | Other | 387 |
0.8%
|