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Question:
Which of the following diseases is related to immune system –
Options:
A) AIDS/HIV
B) Asthma
C) Both (A) and (B) 
D) Cirrhosis
Solution:
Ans: (a) The Acquired Immuno Deficiency Synd- rome (AIDS) was first recognized in the early 1980s. AIDS is caused by the human immunodeficiency virus (HIV) and is spread through the exchange of body fluids (sexual encounters, sharing needles, blood transfusions).

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