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Figure 2 | BMC Public Health

Figure 2

From: Swine-Origin Influenza A Outbreak 2009 at Shinshu University, Japan

Figure 2

Serial changes in patient number from August 2009 to March 2010. a) Total numbers of patients per week of the study period. b) Serial changes in patient numbers for the 3 groups. Attached schools had summer recess in August, with school classes resuming in September 2009, whereas university classes had recess in August and September and restarted in October 2009. All subjects had winter recess from the end of December 2009 to the beginning of January 2010.

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