Polio
http://www.theguardian.com/science/2015/aug/27/man-found-to-have-been-shedding-virulent-strain-of-polio-for-30-years?CMP=EMCNEWEML6619I2...
Things Doctors Considered Safe - But were Dead Wrong
Take for instance the Live Polio Oral Vaccine: "The Oral Polio Vaccines were given to Indian children. The CDC dropped the OPV from its...
