2017 · Q3
AIDS is caused by the Human Immunodeficiency Virus (HIV). The transmission of HIV infection generally occurs through
General KnowledgeBiology
- Aeating contaminated food and water.
- Btransfusion of contaminated blood and blood products.
- Cinhaling polluted air.
- Dshaking hand with infected person.
Explanation
HIV spreads through blood and sexual fluids — unprotected sex, sharing needles, mother-to-child transmission, and transfusion of infected blood or blood products. It is not transmitted through contaminated food or water, polluted air, or casual contact such as handshakes. Of the listed routes, only transfusion of contaminated blood is a genuine mode of HIV transmission. Hence B.