Figure 4
From: Ecological dynamics of influenza A viruses: cross-species transmission and global migration
Local cross-species transmission of IAVs in each region.
Circles with colors represent different species, respectively. A possible transmission event in the same region is indicated by a pair of circles placed vertically in the same year. Multiple cross-species transmission in the same region in the same year are piled up vertically. Regions without identified transmission events are hided.
