1. Fluid transmission (vaginal fluid, anal fluid, semen, blood);
2. Skin-to-skin transmission;
3. Indirect transmission (used condoms or via parasitic STIs like pubic lice);
4. Vertical transmission (during childbirth).
1. Fluid transmission (vaginal fluid, anal fluid, semen, blood);
2. Skin-to-skin transmission;
3. Indirect transmission (used condoms or via parasitic STIs like pubic lice);
4. Vertical transmission (during childbirth).