[Failure of poliomyelitis eradication campaign with oral vaccine: there's no vaccination without adherence].

Thirty-five years after its launch, the Global Polio Eradication Initiative has yet to reach its original goal of 2000. Not only is the wild type 1 polio virus still endemic in two countries, but a new outbreak due to viruses derived from the live attenuated virus used for the oral vaccine has been spreading since 2016. The National Immunization Days (NID), during which teams go door-to-door and attract children to be vaccinated, have provoked violent opposition particularly in Northern Nigeria and in the area of India, Pakistan, Afghanistan. In both regions, the same rumor has developed that the vaccine contains sterilizing products, in order to limit the Muslim population. The organizers of the campaign multiplied in vain the NIDs to overcome the resistance, but pockets of insufficiently vaccinated population have persisted. This has allowed the wild virus to remain endemic and the new outbreak of vaccine-derived viruses to progress. We can wonder what the campaign would have become if its organizers had taken the time to reflect and reorient their strategy to rely on the routine vaccination of the Expanded Program on Immunization that does not arouse such opposition.
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