With polio, we've gone several years with no polio in all of Africa, but now with this we're having to go and mop up in that whole region, so it's a bit of a setback for polio. So in parallel we have to go back and get rid of those cases.
Bill GatesI think we knew that this would be just like raising the kids together, this would be a fun thing to do in partnership. And you know, we're so lucky because we get to hire in very smart people. We get to partner with governments like the Canadian Development Organization - CIDA, USAID - tonnes of scientists doing this work. This is fascinating.
Bill Gates