Q. 4. What is immunisation?
Protection of body from communicable diseases by some agents that mimics agent.Introduction of some microbes into body by vaccination to activate immune system against a particular disease is known as immunization.
CBSE Class 10, 12 syllabus 2024-25 out; board restores two-level mathematics rule
CBSE Class 10 board exam 2024 passing criteria, eligibility for compartment; all you need to know
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