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History

March 26 1953 Jonas Salk Announces Polio Vaccine


On March 26th 1953, American medical researcher Dr Jonas Salk made public that a vaccine he had developed for poliomyelitis had been successfully tested. The crippling disease had reached epidem9ic proportions in 1952, with 58,000 new cases reported in the Unites States, of which over 3,000 had died. The disease is also called “infant paralysis” because it mainly affects children. For his promise to eventually eliminate the disease, Dr Salk was celebrated as the great doctor of his generation.

Polio has affected societies throughout recorded history, attacking the nervous system and sometimes causing varying degrees of paralysis. Since the virus is easily transmitted, epidemics were commonplace in the first decades of the 20th century. The first major polio epidemic in the United States occurred in Vermont in the summer of 1894, and by the 20th century thousands were affected every year. In the first decades of the 20th century, treatments were limited to quarantines and the infamous “iron lung,” a metal coffin-like contraption that aided respiration. Although children, and especially infants, were among the worst affected, adults were also often afflicted, including president Franklin D. Roosevelt, who was stricken with polio in 1921 at the age of 39 and left partially paralysed. Roosevelt later transformed his estate in Warm Springs, Georgia, into a recovery retreat for polio victims and was instrumental in raising funds for polio-related research and the treatment of polio patients.

Salk was born in New York City in 1914. He started conducting research on viruses in the 1930s when he was a medical student at New York University, and during World War II helped develop flu vaccines. In 1947, he became head of a research laboratory at the University of Pittsburgh and in 1948 was awarded a grant to study the polio virus and develop a possible vaccine. By 1950, he had an early version of his polio vaccine.

Salk’s procedure, first attempted unsuccessfully by American Maurice Brodie in the 1930s, was to kill several strains of the virus and then inject the benign viruses into a healthy person’s bloodstream. The person’s immune system would then create antibodies designed to resist future exposure to poliomyelitis. Salk conducted the first human trials on former polio patients and on himself and his family, and by 1953 was ready to announce his findings. This occurred on the CBS national radio network on the evening of March 25 and two days later in an article published in the Journal of the American Medical Association. Dr. Salk became an immediate celebrity.

In 1954, clinical trials using the Salk vaccine and a placebo began on nearly two million American schoolchildren. In April 1955, it was announced that the vaccine was effective and safe, and a nationwide inoculation campaign began. New polio cases dropped to under 6,000 in 1957, the first year after the vaccine was widely available. In 1962, an oral vaccine developed by Polish-American researcher Albert Sabin became available, greatly facilitating distribution of the polio vaccine. Today, there are just a handful of polio cases in the United States every year, and most of these are “imported” by Americans from developing nations where polio is still a problem. Among other honours, Jonas Salk was awarded the Presidential Medal of Freedom in 1977. He died in La Jolla, California, in 1995.

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Discussion

7 thoughts on “March 26 1953 Jonas Salk Announces Polio Vaccine

  1. Hi,
    The world would certainly be lost without these people that come up with these cures, very interesting post. 🙂

    Like

    Posted by magsx2 | March 26, 2012, 5:14 am
  2. Thank you so much for this … can’t remember what year I got my first injections – but I was still in school. So it must have been between 1955-63. Loved this post – there is so many out there thank we have to thanks for what we have today in medicine. And we never give them a thought …

    Like

    Posted by viveka | March 26, 2012, 6:12 am
  3. Great post!

    Like

    Posted by Teresa Rice | March 26, 2012, 7:10 am
  4. thanks for remembering one of the greatest discoveries in medicine of the 20th century

    Like

    Posted by The Physician's Palette | March 26, 2012, 7:12 am
  5. PITT alum share in the pride…

    Like

    Posted by sheafferhistorian | March 26, 2012, 2:05 pm

Trackbacks/Pingbacks

  1. Pingback: March 25 1953 Jonas Salk Announces Polio Vaccine « Craig Hill « kartus - March 26, 2012

  2. Pingback: March 26 1953 Jonas Salk Announces Polio Vaccine « Craig Hill « kartus - March 30, 2012

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