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The impact of supplementary immunization activities on routine vaccination coverage: An instrumental variable analysis in five low-income countries
BACKGROUND: Countries deliver vaccines either through routine health services or supplementary immunization activities (SIAs), usually community-based or door-to-door immunization campaigns. While SIAs have been successful at increasing coverage of vaccines in low- and middle-income countries, they...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6375584/ https://www.ncbi.nlm.nih.gov/pubmed/30763389 http://dx.doi.org/10.1371/journal.pone.0212049 |