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  • Content Type: Abstract

    In this paper we investigate the use of the CUSUM algorithm on retrospective MMR and Pentacel (DTaP-IPV-Hib) immunization data to determine if this type of surveillance tool is useful for measuring changes in immunization rates.
    … past, sudden and prolonged decreases of MMR immunization due to fears of vaccine safety have lead to widespread … algorithm showed that at no time in the study period did the MMR immunization counts drop below the lower … this particular region. The counts for Pentacel however did have a significant and sustained drop beginning in …