How Is HIV Transmitted?
How Do You Get or Transmit HIV?
You can only get HIV by coming into direct contact with certain body fluids from a person with HIV who has a detectable viral load. These fluids are:
Blood
Semen (cum) and pre-seminal fluid (pre-cum)
Rectal fluids
Vaginal fluids
Breast milk
For transmission to occur, the HIV in these fluids must get into the bloodstream of an HIV-negative person through a mucous membrane (found in the rectum, vagina, mouth, or tip of the penis), through open cuts or sores, or by direct injection (from a needle or syringe).
People with HIV who take HIV medicine as prescribed and get and keep an undetectable viral load can live long and healthy lives and will not transmit HIV to their HIV-negative partners through sex.
https://www.hiv.gov/hiv-basics/overview/about-hiv-and-aids/how-is-hiv-transmitted