Facebook - A Year in Books - Anyone participating? Feb 18, 2015 18:25:15 GMT -5 Post by ursula on Feb 18, 2015 18:25:15 GMT -5 Zuckerberg is going ruffle anti-vaxxer feathers with his 4th bookOn Immunity by Eula Bisswww.goodreads.com/book/show/20613511-on-immunity?from_search=truewww.facebook.com/ayearofbooksFrom the Amazon description and reviews, I think I'm going to jump in and read this one.