Human Papillomavirus is living weakened germs is introduced in our body as a protection in the form of vaccine.
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There are many such diseases such as polio,..
For such diseases, vaccines are given to the body which contains weakened viruses of the disease so that the anti-bodies get alert against the disease and the person don't get the disease again.......
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no its wrong
its absolutely ridht.
I mean 'right'
its for measles