Abstract
We applied a multiplex reverse transcription-PCR with fluorescent dye-labeled primers (fluorescent multiplex RT-PCR) for noroviruses (NoV), sapovirus (SaV), and human astrovirus (HAstV) to diagnose 71 outbreaks of acute gastroenteritis during July 2007 and May 2010 in Hiroshima prefecture. In this assay, the green, red, yellow, and blue fluorescence for NoV genogroup I, NoV genogroup II, SaV, and HAstV, respectively, were indicated on an agarose gel under ultraviolet light. In 61 virus-positive outbreaks confirmed by fluorescent multiplex RT-PCR, detection rates of outbreaks for NoVs, SaV, and HAstV were 96.7%, 3.3%, and 0%, respectively.
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