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RALPH TURCHIANO – Polio Vaccine caused virus mutation, created long term human spreaders

“ All iVDPV strains had mutations that reversed the attenuating features of the vaccine strain, and over time they also acquired a range of other mutations, many affecting the antigenic structure of the virus. All tested iVDPV samples were able to cause paralysis in transgenic mice that had a human poliovirus receptor.” With all but two countries worldwide, Pakistan and …