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. 2012 Jun 27;7(6):e38256. doi: 10.1371/journal.pone.0038256

Figure 1. Prevalence of avian influenza virus and antibodies in wild birds based on level of urbanization.

Figure 1

Avian influenza virus prevalence (A) and seroprevalence (B) in 7 wild bird species sampled in the Netherlands between 2006 and 2009 in relation to the level of urbanization. Grey bars indicate number of birds sampled (left Y-axes) and triangles indicate prevalence (right Y-axes).