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Title: Herd immunity fails when what percentage of the population is NOT vaccinated? Post by: fluffycookie on Jul 10, 2018 Herd immunity fails when what percentage of the population is NOT vaccinated?
A) 1% B) 5% C) 10% D) 50% Title: Herd immunity fails when what percentage of the population is NOT vaccinated? Post by: irishman152 on Jul 10, 2018 B
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