Biology, asked by jahid5056, 1 year ago

How effective are vaccines?

Answers

Answered by laxmipriyaojha2002
1

First, no vaccine is 100% effective. To make vaccines safer than the disease, the bacteria or virus is killed or weakened (attenuated). For reasons related to the individual, not all vaccinated persons develop immunity. Most routine childhood vaccines are effective for 85% to 95% of recipients.

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