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Seasonal distribution of the children hospitalized with acute gastroenteritis, November 2007 to October 2008, at Taiyuan Children Hospital. The numbers of cases (bars, left y axis) and the HBoV2-positive rate (line, right y axis) varied in different months (x axis). “total” means the number of all of the cases. “HBoV2” means the number of HBoV2-positive cases.
