 Special thanks to Donald Mitchell, the filmmaker who passed us a lot of this audio of Maurice Hilleman. His movie is called Hilleman, A Perilous Quest to Save the World's Children. You can watch that film online or parts of it at the Vaccine Makers Project. Also to Elena Conis and to Anna Vichuk and Andrew Backer who performed this lovely rendition. I've got the mumps. Of the mumps sheet music Heather found. You have the mumps.