The original, most thoughtful & relevant (to C19) 1920s era concept of natural herd immunity had nothing to do with mass vaccination “disease eradication” goals (i.e., the "70%+ dogma") decades later, à la smallpox—& C19, mercifully, ain’t smallpox. https://t.co/hnMVHX9ag6 pic.twitter.com/Bsc01B3Yzg

— Andrew Bostom, MD, MS (@andrewbostom) August 3, 2020