There are estimates that herd-immunity is achievable at 43% "The disease-induced herd immunity level is 43% ... when immunity is induced by disease spreading,

There are estimates that herd-immunity is achievable at 43% "The disease-induced herd immunity level is 43% ... when immunity is induced by disease spreading, the proportion infected in groups with high contact rates is greater than in groups with low contact rates" https://arxiv.org/abs/2005.03085 https://arxiv.org/abs/2005.03085