POLIO SPAIN: Why use oral polio vaccine (OPV) if inactivated polio vaccine (IPV) dosen't causes poliomielitis? says POLIO SPAIN.

14 jun 2013

Why use oral polio vaccine (OPV) if inactivated polio vaccine (IPV) dosen't causes poliomielitis? says POLIO SPAIN.

Instead of shielding children from polio, oral polio vaccine causes disease.

A 10-month-old baby in Beed district, Maharashtra who recently got infected by a vaccine-derived poliovirus (VDPV) type 2 is yet another reminder that despite India being declared polio free more than two years ago, children are getting infected with the polio virus. The only difference is that the virus in question is not the wild type but a vaccine-derived one.

Viruses in OPV can become neuro-virulent and spread, causing polio in under-immunised, susceptible children. Photo: S.James