This article appears in the 23 June 2011 issue of Vaccine: "Assessing the potency of oral polio vaccine kept outside of the cold chain during a national immunization campaign in Chad". This study provides proof-of-concept evidence that certain typs of OPV remain potent and thus can be kept, for limited periods of time, and administered at ambient temperatures. Full article available for purchase at http://www.ncbi.nlm.nih.gov/pubmed/21699946. Any comments, thoughts or similar experiences to share?
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