although I still haven't heard why those goalposts were moved to 70-85%. But don't worry ... there are still hot spots to worry about! I'm not even sure why Dr. Collins is talking about it though since Fauci said it's not a fundamental strategy to combat COVID (another great message to promote vaccinations).
https://www.foxnews.com/health/coronavirus-herd-immunity-getting-close-some-regions-nih-director