American Society for Microbiology, Journal of Clinical Microbiology, 6(46), p. 2119-2121, 2008
DOI: 10.1128/jcm.02198-07
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ABSTRACT Norovirus genogroup II excretion during an outbreak of gastroenteritis was investigated in an aged-care facility. Viral shedding peaked in the acute stage of illness and continued for an average of 28.7 days. The viral decay rate was 0.76 per day, which corresponds to a viral half-life of 2.5 days.