ಈ ಕೆಳಗಿನ ಯಾವ ಮಾರ್ಗವನ್ನು ಹೊರತುಪಡಿಸಿ, HIV ಒಬ್ಬ ವ್ಯಕ್ತಿಯಿಂದ ಇನ್ನೊಬ್ಬರಿಗೆ ಹರಡುತ್ತದೆ:

HIV spreads through infected body fluids: unprotected sex, shared needles, infected blood, and from mother to child (including breastfeeding). It is not spread by mosquito bites, because the virus cannot survive or multiply in mosquitoes.