State the principle of immunisation. Name two diseases for which vaccine is available.
Q. (a) State the principle of immunisation. Name two diseases for which vaccine is available.
(b) Mention two basic principles of prevention of infectious diseases.
Ans. (a) Developing memory against a microbe, introduced deliberately to develop immunity against it.
For example: Polio, Typhoid.
(b) (i) Keeping cleanliness in everything be it personal and hygiene or public hygiene.
(ii) Availability of proper food and nourishment to keep immune system healthy.
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