Question

The common means of transmission of AIDS is

• A. placental transfer
• B. All of these
  
• C. blood transfusion
  
• D. sexual intercourse
  

Answer 1

The correct option is B All of these


AIDS
AIDS (Acquired immunodeficiency syndrome) is a collection of diseases that arise due to the weakening of the immune system. In this disorder, the human immunodeficiency virus (HIV) causes a reduction in the number of helper T cells making the person susceptible to normal infections.

Mode of transmission
The virus spreads through infected blood, vaginal fluid and semen. Hence, transmission occurs in the following ways:-
Contaminated blood
Sharing of infected needles
Sexual contact with infected person
Placental transmission

Sexual contact with an infected person
Since the virus is present in vaginal fluids and semen, the disease can spread through sexual contact with infected people.

Contaminated blood
Blood containing the virus, if transfused without appropriate tests, can cause the spread of the disease to the recipient.

Placental transmission
HIV can move through the placenta of the mother to the foetus causing infection of the foetus.