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Human Health and Disease — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYHuman Health and Disease1 Mark
MCQ
The immunity obtained after the body has recovered from a disease is:
  • A
    Active immunity
  • B
    Passive immunity
  • C
    Both A and B
  • D
    Innate immunity
✓

Answer

  1. Active immunity

Explanation:

Active immunity, which is naturally acquired, occurs when the person is exposed to a live pathogen, develops the disease and becomes immune, as a result of the primary immune response. Artificially acquired active immunity can be induced by a vaccine.

Artificially acquired passive immunity is a short-term immunization by the injection of antibodies. Naturally acquired passive immunity occurs during pregnancy in which certain antibodies are passed from the maternal to the fetal bloodstream.

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