The OPV is cheap and easy to give to children, but it has to be given to them again and again in pulse campaigns since its efficacy is poor. On the other hand, the IPV is highly efficacious and needs to be given just two-three times as part of routine immunisation.
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Unknown titles a Western agenda with the sinister motive of reducing fertility. The GPEI has pinned all its hopes on the OPV and has excluded the alternate inactivated polio vaccine (IPV) to eradicate WPVs. <span>The OPV is cheap and easy to give to children, but it has to be given to them again and again in pulse campaigns since its efficacy is poor. On the other hand, the IPV is highly efficacious and needs to be given just two-three times as part of routine immunisation. Risk of polio outbreaks The OPV has another problem. If coverage declines (as is bound to happen in Pakistan), vaccine viruses will spread to children who are not vaccinated, back-mutat Summary
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