Fig. 4From: Changes in the numbers of patients with acute gastroenteritis after voluntary introduction of the rotavirus vaccine in a Japanese children’s primary emergency medical centerNumbers and proportions of severe AGE patients ≤ 2 years of age in the a rotavirus and b norovirus epidemic seasons. Gray columns and gray stripe columns indicate number of severe AGE patients ≤ 2 years of age in the rotavirus season and norovirus season each year, respectively. The line indicates the proportions of severe AGE patients based on the total number of visiting patients. ** p < 0.01 compared with in 2011. AGE, acute gastroenteritisBack to article page