Abstract Background The Oral Polio Vaccine (OPV or Sabin) is genetically unstable and may mutate to form vaccine-derived polioviruses (VDPVs). Methods In 2014. two VDPVs type 2 were identified during routine surveillance of acute flaccid paralysis (AFP) cases. Consequently. https://www.diegojavierfares.com/mega-sale-Religious-Priest-Deluxe-Mens-Costume-must-buy/