Requirements for Infection1. HIV must be present, 2. In sufficient quantities to cause infection,3. And be able to get into the bloodstream Blood Sexual fluids Breast milkDirectly through damaged skin or through injectionAbsorption through mucous membranesIf you remove one of these factors, infection cannot take place.The following three factors need to happen in order for HIV to cause infection: style.visibilitystyle.visibilitystyle.visibilitystyle.visibilitystyle.visibilitystyle.visibilitystyle.visibility