O Levels Biology (5090)•5090/12/M/J/22

Explanation
Identifying Incorrect HIV Statements Steps:
- Evaluate each statement: HIV transmits via blood, semen, vaginal fluids, breast milk, or mother-to-child routes like placenta, not casually or airborne.
- Statement 1 incorrect: Condoms prevent sexual transmission but not placental transfer.
- Statements 2 and 4 incorrect: HIV not spread by coughing or sneezing; it's not airborne.
- Statements 3 and 5 incorrect: HIV is the virus; AIDS is the advanced disease stage.
- Statement 6 correct: HIV in blood/semen; screening reduces transmission risk. Why D is correct:
- D identifies 3 (HIV ≠ AIDS, per CDC definition) and 4 (no airborne spread, unlike flu viruses) as incorrect. Why the others are wrong:
- A includes 6, which is correct.
- B includes 2 and 4 (duplicates) plus 5, but omits other incorrect ones like 1.
- C lists only 2 and 3, missing 4 and 5 duplicates. Final answer: D
Topic: Disease
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