>> andersen: i feel it is a cure, and i live my life that way. >> pelley: fritz and stephanie met fore at "60 minutes" when we interviewed them last fall. >> andersen: we should do a head bump. there you go. there you go. >> lipscomb: was yours on your right side? >> andersen: no, on the left. which one's yours? >> lipscomb: my right. >> andersen: well, let's do it right to left. there we go. >> pelley: with the early success, the team raised the dose in the next few patients in hope of an even better result. but that's when the polio trial encountered its first tragedies. when we come back we'll look at how the virus is working in nancy justice, who we met in the beginning, and at what they've discovered after trying polio against lung cancer, breast cancer and many others. >> welcome to the cbs sports update. i'm greg gumbel in new york. the final four is set. wisconsin and kentucky in one national tem final, a rematch of one of last year's semi, a game kentucky won 74-73. and in the other semi,ites michigan state and duke. combined coach izzo and coach krzyzewski have reached 19 fi