Transmission of HIV-Infection occurs by-
(A). Using infected needles by the health staff or by drug abusers
(B). Transfusion of contaminated blood and blood product
(C). Sexual contact with infected person
(D). Sharing food and sanitation facilities
Choose the correct answer from the options given below.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A), (B) and (C) only
HIV, the virus that causes AIDS, passes from one person to another only through body fluids, such as blood and semen.
(A) Using infected needles by the health staff or by drug abusers — Correct. A used needle carries traces of infected blood. Sharing it puts the virus straight into the next person’s blood.
(B) Transfusion of contaminated blood and blood product — Correct. Blood from an infected donor carries the virus into the person who receives it. That is why donated blood is tested for HIV.
(C) Sexual contact with infected person — Correct. This is the most common route of HIV infection, through the body fluids exchanged in sexual contact.
(D) Sharing food and sanitation facilities — Incorrect. HIV does not spread by mere touch or physical contact. Sharing food, toilets or other facilities with an infected person carries no body fluid into the blood, so it does not pass on the virus.
NCERT Extract:
AIDS – …
