HIV Progression and AIDS Explained
Human Immunodeficiency Virus (HIV) primarily targets and damages the body's immune system, specifically the CD4 cells (T cells) which are crucial for fighting infections.
Acquired Immunodeficiency Syndrome (AIDS) represents the final, most severe stage of HIV infection. It is diagnosed when the immune system is significantly compromised due to HIV.
When HIV infection remains untreated, the virus continuously replicates, destroying more CD4 cells over time. This progressive decline severely weakens the immune system, making the individual highly susceptible to opportunistic infections and certain cancers. This critical state of immune deficiency is defined as AIDS.
Therefore, the natural progression of untreated HIV infection leads to AIDS.
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Important Questions from Diseases and Causes
‘Beri-Beri’ is caused by the deficiency of __________.
Vectors are:
Match List-I with List-II and choose the correct answer using the codes given below :
List-I
(Crops)List-II
(Diseases)A. Paddy i. Wilt disease B. Wheat ii. Black Rust C. Sugarcane iii. Red Rot D. Pigeon Pea iv. Brown leaf spot - Diabetes mellitus is caused by the inadequate secretion of which hormone?
______ of antibiotics may lead to nausea, stomach ache, dysentery, rash, white patches on the tongue etc.
