Ascertainment of childhood vaccination histories in northern Malawi
OBJECTIVE: To assess factors related to recorded vaccine uptake, which may confound the evaluation of vaccine impact. METHODS: Analysis of documented vaccination histories of children under 5 years and demographic and socio-economic characteristics collected by a demographic surveillance system in...
Main Authors: | , , , , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
2008-01.
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Subjects: | |
Online Access: | Get fulltext |