Article de revue

Measuring polio immunity to plan immunization activities

The Global Polio Eradication Initiative is closer than ever to achieving a polio-free world. Immunization activities must still be carried out in non-endemic countries to maintain population immunity at levels which will stop poliovirus from spreading if it is re-introduced from still-infected areas. In areas where there is no active transmission of poliovirus, programs must rely on surrogate indicators of population immunity to determine the appropriate immunization activities, typically caregiver-reported vaccination history obtained from non-polio acute flaccid paralysis patients identified through polio surveillance. We used regression models to examine the relationship between polio vaccination campaigns and caregiver-reported polio vaccination history. We find that in many countries, vaccination campaigns have a surprisingly weak impact on these commonly used indicators. We conclude that alternative criteria and data, such as routine immunization indicators from vaccination records or household surveys,

Langues

  • Anglais

Année de publication

2016

Journal

Vaccine

Volume

48

Type

Article de revue

Catégories

  • Données

Maladies

  • Polio

Pays

  • Afghanistan
  • Nigéria
  • Pakistan

Mots-clés

  • Suivi de la couverture
  • Qualité des données
  • Rapport de données

Régions de l'OMS

  • Région africaine
  • Région de la Méditerranée orientale

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