Thursday, June 21, 2012
doi: 10.1542/peds.2011-3154) address this question by studying vaccine compliance in Portland Oregon from 2004-2009. The authors used a retrospective cohort analysis of a vaccine registry to look at prevalence trends for use of an alternative schedule — taking into account the 2007-2009 Hib shortage and increased availability of combination vaccines. While the overall prevalence is just under 5%, the rate almost doubled in the latter years of this study, suggesting that more families are opting out of receiving the recommended vaccines in a timely fashion. This study only looks at one urban area, and it remains to be seen whether this will result in more break-through cases of pertussis and other preventable illnesses in the Portland area. Certainly, this is a realistic concern given the trends reported in this important article.
Posted by Dr. Lewis R. First at 12:01 AM