Human Health and Diseases Question 75

75. The cell in the human body invaded by the human immuno-deficiency virus (HIV) is

[1999, 2006]

(a) T-helper cell

(b) Erythrocyte

(c) B-cell

(d) Macrophage

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Answer : a

Hints & Solutions

(a) AIDS is characterized by reduction in the number of helper T- lymphocytes because of HIV infection. It suppresses human immune system due to which any secondary infection may lead to death. T-lymphocytes are main cells of immune system.