title: Novel surveillance network for norovirus gastroenteritis outbreaks, United States.
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).
authors.affiliation: Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
authors.forename: Everardo
authors.initials: E
authors.lastname: Vega
authors.forename: Leslie
authors.initials: L
authors.lastname: Barclay
authors.forename: Nicole
authors.initials: N
authors.lastname: Gregoricus
authors.forename: Kara
authors.initials: K
authors.lastname: Williams
authors.forename: David
authors.initials: D
authors.lastname: Lee
authors.forename: Jan
authors.initials: J
authors.lastname: Vinjé
mesh_terms: D000595:Amino Acid Sequence; D017250:Caliciviridae Infections / Q000453:epidemiology* / Q000821:virology; D036022:Capsid Proteins / Q000737:chemistry / Q000235:genetics; D016208:Databases, Factual; D004196:Disease Outbreaks / Q000706:statistics & numerical data*; D005759:Gastroenteritis / Q000453:epidemiology* / Q000821:virology; D005838:Genotype; D006801:Humans; D029322:Norovirus / Q000145:classification / Q000235:genetics*; D010802:Phylogeny; D011159:Population Surveillance / Q000379:methods*; D012367:RNA, Viral / Q000235:genetics; D020133:Reverse Transcriptase Polymerase Chain Reaction; D017422:Sequence Analysis, DNA; D014481:United States / Q000453:epidemiology
chemical_list: D036022:Capsid Proteins; D012367:RNA, Viral