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,
Auteurs
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