Search Results

1 January 1970

Posted by: Richard Scrase

Category: News


Sixty years of the polio 'miracle' vaccine

In 1955 the Salk polio vaccine was licensed in the US. Polio cases have dropped from 450,000 then to 450 now.
Poliomyelitis is a virus that has infected humans since the earliest of times – sometimes causing permanent paralysis. It mainly affects children under the age of five.  …

Last edited: 19 September 2014 04:49