Final answer:
In Sub-Saharan Africa, the primary mode of transmitting HIV is through heterosexual sex.
Step-by-step explanation:
In Sub-Saharan Africa, the primary mode of transmitting HIV is through heterosexual sex.
According to the information provided, the majority of HIV transmissions worldwide occur through sexual contact, with most cases being the result of heterosexual contact. While the risk of transmission through a nal intercourse is high, the risk from oral sex is relatively low. In the United States, HIV is transmitted more often in men who have s ex with men.
Other modes of transmission mentioned include transmission through contaminated blood and blood products, as well as from untreated HIV-infected mothers to their children during pregnancy, childbirth, or breastfeeding.