RT @DrDenaGrayson
⚠️The threshold for herd immunity, at which #coronavirus can no longer spread widely is believed to be >60%.

Even in the hardest-hit cities in the world, the highest rate of immunity is only ~20% in #NYC, and the vast majority of people have NO immunity.

https://www.nytimes.com/interactive/2020/05/28/upshot/coronavirus-herd-immunity.html?smid=tw-share