Figure 2From: Inferring the potential risks of H7N9 infection by spatiotemporally characterizing bird migration and poultry distribution in eastern ChinaThe estimated spatiotemporal patterns of infection risks based on the likelihood of bird migration. The estimated spatiotemporal patterns of infection risks based on the likelihood of bird migration from February 4 to April 28, 2013. It can be observed that after Week 7, the birds gradually migrate from southern provinces, to central and northeastern provinces.Back to article page