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| Route of HIV transmission | n (%) |
|---|---|
| Sexual | 1751 (66.8) |
| Heterosexual | 1017 (38.8) |
| Bisexual and men who have sex with men | 734 (28.0) |
| Mother-to-child | 218 (8.3) |
| Blood transfusion | 84 (3.2)* |
| Intravenous drug abuse | 112 (4.3) |
| Unknown | 457 (17.4) |
| Total | 2622 (100) |
*the last cases of HIV due to blood donor reported in 1995.
