Question: what are 4 factors that help determine whether hiv is likely to be transmitted?
Answer: Having Unprotected Sex. Most people get HIV by having sex. ... 
Drug Use. Using needles to inject drugs makes your chances of HIV higher. ... 
Having Certain Health Problems. Having a sexually transmitted infection (STI) makes your risk of HIV higher. ... 
Blood Products. ... 
Having Certain Jobs. ... 
References.