Scientists at the U.S. Public Health Service's Communicable Disease Center in Montgomery, Alabama, had just discovered that the Brunhilde type of polio virus could be grown in mice. Shown, left to right, are: Mrs. Anna Hall, C.P. Li, (Chief of the Special Projects Unit), Mrs. Auborn Hall, Morris Schaeffer (medical director in charge of the Virus & Rickettsia Laboratory) Mrs. Johnnie Johnson, and Miss Ann Beasley