Biology PYQ 175 of 227 · Human Health, Diseases & Immunity

AIDS is caused by -

  1. Ahelminth
  2. Bbacteria
  3. Cfungus
  4. Dvirus
  5. ENone of the above / More than one of the above

65th BPSC

Show answer and explanation

Correct answer: (d) virus

Explanation

AIDS is caused by HIV (Human Immunodeficiency Virus), a retrovirus.

It destroys T-helper cells (CD4 WBCs), weakening immunity and leading to Acquired Immunodeficiency Syndrome.

It spreads via blood, semen, vaginal fluids and breast milk – not by helminths, bacteria or fungi.

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