Virus and host. Infection ; Symptoms ; Diagnosis ; "To keep up his courage" -- "He's through." "The psychological factor is paramount" ; "Perfectly definite in my determination" ; "A tower of blocks" ...

CC0 Usage Conditions ApplyClick for more information. The March of Dimes was founded by President Roosevelt in 1938 in order to fund the development of a cure for polio - a disease he had himself.

- The discovery that the Salk polio vaccine was successful made it impossible for Albert Sabin to test his oral vaccine in the U.S. As a result, Sabin was allowed to go to the Soviet Union and Eastern ...