Figure 1
![Figure 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2334-14-338/MediaObjects/12879_2014_Article_3639_Fig1_HTML.jpg)
Locations where clinical diarrhea outpatients collected in Guangdong Province (marked with green color). The 15 isolation sites are marked in red and black dots in Guangdong Province, China. International borders and location of Guangdong province are also shown in the figure.