Hi, thanks for your question. It is a common worry that HIV transmission through could occur easily open cuts or blood and it is also true that the body fluids have to contain HIV to transmit it. Many people who have HIV are now on HIV medications which reduce the amount of HIV virus in their body to the point of it being undetectable on a viral load test. Having HIV and being undetectable means that it is not possible to transmit HIV. HIV does not live long outside the body. As soon as the fluid containing HIV has dried and gone cold, the HIV has died and cannot be transmitted.
Let us know if this does not answer your question or if you have any more questions or concerns.