Mathematics, 12.12.2019 05:31, hannahkharel2

"polio has a basic reproduction number (r0) = 5. the vaccine is very good; in fact, polio vaccine is 99% effective when two follow up booster shots are given. what proportion of a population needs to be vaccinated in order for herd immunity to be effective? be sure to enter your answer as a decimal, not as a percentage."

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"polio has a basic reproduction number (r0) = 5. the vaccine is very good; in fact, polio vaccine i...