Fig. 2

Temporal distribution of norovirus positive strains detected during the period from August 2015 to October 2017, in South China. Norovirus genotypes are represented in this study by different colors in the legend (GII.4, red; GII.17, yellow; GII.3, blue; GII.8, green; GI.6, grey). And the numbers of samples tested per month were listed below the collecting time, which were in parentheses