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Polio Vaccines Word Count: 325 Summary: Currently there are two polio vaccines that are in use throughout the world to fight against polio rsspect.org Jonas Salk, the man who invented the first, started his work on a vaccine in 1955 ambafrance-kwt.org The vaccine worked in two steps: first a dose of killed polio virus is injected, and then an oral polio vaccine must be taken which contains a live but much weakened form of the virus guyraymondphotographe.com This vaccine was first tested in 1957 on humans, and was later liscensed in 1962. Keywords: Polio Vaccines Article Body: Currently there are two polio vaccines that are in use throughout the world to fight against polio homeandhangarexchange.com Jonas Salk, the man who invented the first, started his work on a vaccine in 1955 imajcreations.com The vaccine worked in two steps: first a dose of killed polio virus is injected, and then an oral polio vaccine must be taken which contains a live but much weakened form of the virus josephhonein.com This vaccine was first tested in 1957 on humans, and was later liscensed in 1962. Then came along another vaccine that was developed by Sabin kirmasti.com This live-virus vaccine quickly became to more popular route of the two for 4 main reasons:
Sabin's vaccine is the standard treatment for polio to date. The dead virus was able to bring Polio to terms, however it was the live-virus vaccine that was able to completely eliminate the wild spread of the polio virus in the United States.
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