By law, if the person has hiv, he/she must tell their partners.
If she has hiv and continue to have sex with people without telling them, then it is a crime.
Make an anonymous call. It's highly unlikely that they'll seek you out to prosecute you for such a petty act, particularly in light of the fact that you're reporting a much more serious crime.
You should report her to the police, what she is doing is a crime. It’s horrible what she is doing if she is not being honest about having HIV. That is scary!
i think you need just to inform the public health authorities in your city such as cdc and letting them doing their job in accordance to the law and general human rights standards .
Thank you guys, I think I'll anonymously call Crimestoppers and report her in , I just hope they can track her down