This is an article about the on going battle against Polio that is believed to be coming to a close as the year 2000 is approached. There is still concern though that it can still transfer and transform into what is called a “wild-type neurovirulence”. The authors in the article examine “OPV transmissibility available from household and community transmission studies and from mass-vaccination experiences.” Unfortunately this is not the case for the modern day.
– I used Google Scholar to find this text
– The article is before the year 2000