Question

In- case of vaccination which among the option, work as the basis of its principle
a) The first time infection of a Same disease is cured is less time than its second time infection
b) The same infections diseases takes same time to cure in its first and second time infection
d) The same infectious diseases takes same time to cure in its first and second time infection​

Answer 1

Answer:

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Answer 2

Answer:

option a

Explanation:

because vaccines are given to prevent