-
The First known epidemic of the Poliovirus recorded in the United States.
-
In 1905, Ivar Wickman discovered two important things. One that Polio is contagious, and that it could be present in people who have no symptoms.
-
Karl Landsteiner and Erwin Popper announced that the contagious properties of polio comes from a virus.
-
Boston Hospital and Harvard published a paper that proved the successful use of the iron lung, or artificial respirator, for the use on patients with paralytic polio.
-
Australian reserachers infected monkeys with the polio virus. They discovered two important things. There are more than one type of the poliovirus, and that immunity from one virus does not mean there is immunity against the others.
-
-
-
-
After testing the Type II Vaccine on chimpanzees, Korproski drank his own concoction of the vaccine. He and his assistant, who also took the vaccine, suffered no ill effects.
-
57,628 cases of Polio were reported in the United States.
-
-
-
At a press conferece at the University of Michigan, doctors announced the results of the Salk poliovirus trial. It was shown that the vaccine was 80%-90% effective.