The search for vaccines to fight poliomyelitis started in the 1920s, but it wasn't until the 1950s that the search bore fruit with the introduction of two vaccines. The first was the Salk inactivated ...
Two forms of the polio vaccine are available: injected inactivated polio vaccine (IPV or Salk vaccine), introduced in 1955 and oral live-attenuated polio vaccine (OPV or Sabin vaccine), introduced in ...
Aside from recent outbreaks of polio in war-torn regions of the world, the deadly virus is close to being eradicated, thanks to vaccines. All vaccines work by training our immune systems to recognise ...
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