Introduction: The inability to successfully stop all use of oral poliovirus vaccine (OPV) as part of the polio endgame and/or the possibilities of reintroduction of live polioviruses after successful OPV cessation may imply the need to restart OPV production and use. either temporarily or permanently. Areas covered: Complementing prior work that explored the risks of potential OPV res... https://www.megavitamines.shop/product-category/childrens-magnesium/