I read on CDC website that HIV risk is there if food containing HIV blood come in contact with the mouth sores or bleeding gums. My case is not same but similar; accidently I might have drank left over water from the same glass from a HIV infected person within 5-10 minutes, 3 days back. I am having existing root canal infection and little swelling from last 10 days. The HIV infected person is also having dental issues and may be bleeding gums. Considering possibility of blood from HIV person in water cup what is the HIV risk. I am a married person and like to get request advice on the HIV Risk