What does the official declaration of wild type 3 poliovirus elimination mean in the war against polio? Put simply, it opens up the possibility of switching from the currently used bivalent oral polio vaccine containing type 1 and type 3 to a monovalent vaccine containing only type 1. The globally synchronised switch in April 2016 from a vaccine containing all the three types (trivalent) to a bivalent vaccine was done to reduce the number of vaccine-derived poliovirus (VDVP) cases.
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Unknown titleses in Pakistan. Though India has excellent polio immunisation coverage and measures have been put in place to prevent the spread from polio-endemic countries, there is no room for complacency. <span>What does the official declaration of wild type 3 poliovirus elimination mean in the war against polio? Put simply, it opens up the possibility of switching from the currently used bivalent oral polio vaccine containing type 1 and type 3 to a monovalent vaccine containing only type 1. The globally synchronised switch in April 2016 from a vaccine containing all the three types (trivalent) to a bivalent vaccine was done to reduce the number of vaccine-derived poliovirus (VDVP) cases. Until 2015, the type 2 strain in the trivalent oral vaccine accounted for over 90% of VDVP cases globally. While the type 3 poliovirus in the vaccine is the least likely to cause vaccin Summary
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