We are now three generations without witness to the crippling fear and loss created by polio, small pox and measles.  We were then a society embracing science, the space race and new medical technology. Post-Covid vaccine hesitancy has worsened an already disturbing trend and as a result we are now witnessing the lowest childhood vaccination rates in decades.  In this episode Dr. Feinberg has frank conversations with callers on both sides of the vaccine controversy.