How is AIDS predominantly transmitted?

AIDS, which is caused by the Human Immunodeficiency Virus (HIV), is predominantly transmitted through specific high-risk activities. The primary modes of transmission are unprotected sexual contact with an infected person, particularly through anal or vaginal intercourse, and exposure to infected blood. This can occur through sharing needles among intravenous drug users, blood transfusions with contaminated blood, or through other means that involve blood-to-blood contact.

Understanding the transmission routes is crucial for prevention. Other options, such as transmission through air droplets, sharing food, or casual contact, do not facilitate the spread of HIV. The virus does not survive well outside the human body, making casual contact and other listed methods ineffective routes for transmission. This highlights the importance of practicing safe behaviors, such as using condoms and avoiding sharing needles, to prevent the spread of HIV and AIDS.