Abstract
We report an increase in the proportion of genotype GI.6 norovirus outbreaks in the United States from 1.4% in 2010 to 7.7% in 2012 (p<0.001). Compared with non-GI.6 outbreaks, GI.6 outbreaks were characterized by summer seasonality, foodborne transmission, and non-health care settings.
Keywords:
GI.6 genotype; Norovirus; United States; gastroenteritis; outbreak; surveillance; viruses.
MeSH terms
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Adolescent
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Adult
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Aged
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Caliciviridae Infections / epidemiology
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Caliciviridae Infections / transmission
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Caliciviridae Infections / virology*
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Child
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Child, Preschool
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Communicable Diseases, Emerging / epidemiology
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Communicable Diseases, Emerging / transmission
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Communicable Diseases, Emerging / virology*
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Disease Outbreaks*
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Female
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Genotype
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Humans
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Male
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Middle Aged
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Molecular Typing
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Norovirus / genetics*
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Phylogeny
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Public Health
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United States / epidemiology
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Water Microbiology
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Young Adult