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 PostsJupiter's Great Red Spot looks menacing in NASA's closest-ever photos of the raging stormHey, women: Here's how to soften life's toughest emails using exclamation points!FIGHT: The WIRED Guide to Net NeutralityA tired journalist's response to Trump Jr.'s emails has spawned a great memeThe Net Neutrality Fight Doesn't End With the Day of ActionThe hilarious anti-drug ads Jeff Sessions might want to avoid if he revives D.A.R.E.