Final answer:
HIV is spread through direct contact of mucous membranes or body fluids such as blood, semen, or breast milk. It can be transmitted through sexual contact, contaminated needles, and from an infected mother to her baby. HIV is not spread through saliva, touching objects, or through the air.
Step-by-step explanation:
HIV is spread through direct contact of mucous membranes or body fluids such as blood, semen, or breast milk. It can be transmitted through sexual contact or the use of contaminated hypodermic needles. It can also be transmitted from an infected mother to her baby during pregnancy, childbirth, or breastfeeding. HIV is not spread through saliva, touching objects, or through the air.