> does this mean we only need to vaccinate about 50% of the US population to reach herd immunity? It depends on the efficacy of the vaccine and the transmissio

> does this mean we only need to vaccinate about 50% of the US population to reach herd immunity? It depends on the efficacy of the vaccine and the transmission rate, but the numbers can be higher than 90% vaccination rate to achieve heard immunity. There's a breakdown of the math behind determining this here: https://www.reddit.com/r/askscience/comments/k9tcv1/if_23_of_the_american_adult_population_gets_the/gf6e8th https://www.reddit.com/r/askscience/comments/k9tcv1/if_23_of...