Fig. 1From: Changes in norovirus genotype diversity in gastroenteritis outbreaks in Alberta, Canada: 2012–2018Monthly distribution of norovirus-positive outbreaks in Alberta by genogroup. Data from years July 2002 to June 2012 were reported previously by Pang et al. [31] and Hasing et al. [8]. The data from this study corresponds to the period July 2012 to February 2018Back to article page