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Author Kraut, R.Y.; Snedeker, K.G.; Babenko, O.; Honish, L. doi  openurl
  Title Influence of School Year on Seasonality of Norovirus Outbreaks in Developed Countries Type Journal Article
  Year 2017 Publication The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale Abbreviated Journal Can J Infect Dis Med Microbiol  
  Volume (down) 2017 Issue Pages 9258140  
  Corporate Author Thesis  
  Address Environmental Public Health, Alberta Health Services, Edmonton, AB, Canada T5J 2Y2  
  Keywords  
  Abstract Factors affecting the seasonal distribution of norovirus outbreaks are not well understood. This study examined whether grade school settings at the start of the school year may be a factor. We searched Ovid Medline from January 2002 to June 2014 for studies that provided all reported norovirus outbreaks in a developed country by month for a minimum of three years. Historical school years were obtained from verifiable sources. The start of the norovirus seasonal outbreak peak and peak outbreak month were determined for each study and compared to the start month of school. Northern hemisphere and southern hemisphere countries had a different norovirus seasonality and different school year structures (traditional compared to year round). In the two studies that provided outbreaks by age, outbreaks among children started several months before outbreaks in the adult population. The median number of months between school start and start of the seasonal outbreak peak was two months (interquartile range [IQR] = 2.0-3.0), while the median number of months between school start and peak outbreak month was four months (IQR = 3.0-4.0). These findings suggest the possibility the school setting at the start of the school year may be a factor in the seasonality of norovirus.  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1712-9532 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28167970 Approved no  
  Call Number NCSU @ edshirle @ Serial 3585  
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