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Volume 16, Number 8—August 2010

Letter

Eye-Opening Approach to Norovirus Surveillance

Anette HulthComments to Author , Yvonne Andersson, Kjell-Olof Hedlund, and Mikael Andersson
Author affiliations: Swedish Institute for Infectious Disease Control, Solna, Sweden

Main Article

Figure

Number of queries for *vomit* submitted to a medical Web site (A), number of laboratory-verified norovirus samples (B), with baselines and 99% prediction intervals, and number of media articles about winter vomiting disease (C) in Sweden, 2005–2010.

Figure. Number of queries for *vomit* submitted to a medical Web site (A), number of laboratory-verified norovirus samples (B), with baselines and 99% prediction intervals, and number of media articles about winter vomiting disease (C) in Sweden, 2005–2010.

Main Article

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