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Emerg Infect Dis. 2011 Aug;17(8):1389-95. doi: 10.3201/eid1708.101837.

Novel surveillance network for norovirus gastroenteritis outbreaks, United States.

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  • 1Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.

Abstract

CaliciNet, the outbreak surveillance network for noroviruses in the United States, was launched in March 2009. As of January 2011, twenty state and local health laboratories had been certified to submit norovirus sequences and epidemiologic outbreak data to CaliciNet. During the network's first year, 552 outbreaks were submitted to CaliciNet, of which 78 (14%) were associated with foodborne transmission. A total of 395 (72%) outbreaks were typed as GII.4, of which 298 (75%) belonged to a new variant, GII.4 New Orleans, which first emerged in October 2009. Analysis of the complete capsid and P2 region sequences confirmed that GII.4 New Orleans is distinct from previous GII.4 variants, including GII.4 Minerva (2006b).

PMID:
21801614
[PubMed - indexed for MEDLINE]
PMCID:
PMC3381557
Free PMC Article
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