The Tricky Math of Herd Immunity for Covid-19 Ifeadi C. 05:42 Feed: All Latest, Zero Tech Blog When will a disease stop spreading through a population? The formula is simple, but the variables are much more complicated. via Zero Tech Blog Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsWho Discovered the First Vaccine?These Bacteria Ate Their Way Through a Really Tricky MazeThe Remarkable Stuff Scientists Get Done as They Work From HomeAmazon Won't Let Police Use Its Facial Recognition Tech for One YearWhen Health Care Moves Online, Many Patients Are Left BehindCoronavirus Guide: Symptoms, Testing, Treatment, and Economics