Which of the following is NOT a route by which HIV is transmitted?
- A. Sharing a contaminated hypodermic needle
- B. From an infected mother to her child during breastfeeding
- C. Shaking hands with or sharing utensils with an infected person
- D. Transfusion of blood from an infected donor
Explanation
HIV is fragile outside the body and spreads only through blood, semen, vaginal secretions and breast milk, so ordinary social contact, sharing food, insect bites and swimming pools carry no risk. Needles, mother to child transmission and unscreened transfusion are all established routes. Knowing this matters because the false belief in casual spread is what drives the social isolation of patients.
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