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1955

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  • Salk vaccine for polio is declared "safe, effective and potent." [1]
  • March 7 - Federal commission appointed by former President Herber Hoover, discovers that over 50% of the 1,500,000 hospital beds in the U.S. were devoted to the care of people with mental illness, making mental illness the "greatest single" U.S. health problem. [2]


References

  1. http://www.marchofdimes.com/aboutus/789_19318.asp
  2. http://www.cwu.edu/~warren/calendar/cal0307.html
  3. Velvet Type Fabric and Method of Producing Same. U.S. Patent #2,717,437. September 13, 1955.
  4. George de Mestral. National Inventors Hall of Fame. Accesses March 7, 2008.