On the island of Sumatra, Indonesia, May 11, 2021 was declar…
On the island of Sumatra, Indonesia, May 11, 2021 was declared National Measles Vaccination Day. The goal of the campaign was to provide vaccine coverage for at least 83% of the children on the island. The campaign organizers knew it was unrealistic and unnecessary to attempt 100% vaccine coverage. Based on what principle did the campaign organizers set their goal of 83% vaccine coverage?
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