National poliomyelitis response plan for NZ

A polio vaccine with a two-pronged action. bOPV produces antibodies in the blood to two types of poliovirus (types 1 and 3). In the event of infection, this will protect the individual against polio paralysis by preventing the spread of poliovirus to the nervous system. bOPV also produces a local immune response in the lining (mucous membrane) of the intestines, the primary site for … ................
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