An Outbreak of Gastroenteritis Caused by Norovirus : Suspected Due to Dust Transmission

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  • 塵埃感染の疑われたノロウイルスによる集団感染性胃腸炎事例
  • ジンアイ カンセン ノ ウタガワレタ ノロウイルス ニ ヨル シュウダン カンセンセイ イチョウエン ジレイ

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Abstract

A norovirus gastroenteritis outbreak at a wedding reception hall in Nagano Prefecture in April 2008 affected that hallʼs reception participants and waiters, but not waiters or food handlers at another hall. To determine the infection route, dust in three vacuum cleaners used to clean the venue were tested for norovirus using real-time reverse transcriptase polymerase chain reaction (RT-PCR), with norovirus RNA detected from all three. Sequencing analysis of a 280-nt portion of the capsid region showed that 9 specimens from infected reception participants and waiters and dust samples had 100％nucleotide identity. This suggests that the infection route was dust transmission, that the reception venue floor had been contaminated with norovirus, and that participants and staff had been exposed to norovirus in dust during the wedding reception. Dust thus requires specific attention as a potential infection source because norovirus cDNA copies were 1.7×104 to 1.6×105 per gram in dust specimens.

Journal

  • Kansenshogaku Zasshi

    Kansenshogaku Zasshi 84 (6), 702-707, 2010

    The Japanese Association for Infectious Diseases

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