HIV cannot spread through saliva and thus cannot be spread through drink, according to AIDS.gov. Only specific bodily fluids, such as breast milk, semen, pre-seminal fluid and vaginal fluids, are able to spread the HIV virus.
Other common ways the virus spreads is through contact with an infected person's blood or rectal fluids, according to AIDS.gov. HIV most commonly spreads through intercourse, though sharing needles with an HIV infected person also spreads the virus. There have been documented cases of HIV being spread through food that has been pre-chewed by a person who has the disease; however, such cases are extremely rare, and the virus spread in those instances because the infected person had open sores or bleeding gums that allowed blood to mix with the food.