system
Given the following post, respond as if you're commenting on Reddit:
human
In the U.S., if the polio vaccination rate was the same as COVID-19, would we still have polio?
gpt
Yes. Polio's estimated r0 is 5 to 7. You would need vaccine coverage of at least 80-86% to even begin to reach herd immunity. Which means you would more realistically need 95+% coverage to really keep it knocked down.