MCQ
The term active immunity means:
- AResistance developed after disease.
- BResistance developed before disease.
- CResistance rate of heart beat.
- DIncreasing quantity of blood.
✓
Answer
- Resistance developed after disease.
Explanation:
Active immunity occurs when the person is exposed to a live pathogen, develops the disease and becomes immune as a result of the primary immune response.
When B cells and T cells are activated by a pathogen, memory B-cells, and T- cells develop, and the primary immune response results. Throughout the lifetime of an animal, these memory cells will “remember” each specific pathogen encountered, and are able to mount a strong secondary response if the pathogen is detected again.
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