Figure 5From: Global spatiotemporal and genetic footprint of the H5N1 avian influenza virusTimeline of emergence of clade 2.2 H5N1 influenza virus. A list of countries are ordered from higher latitude to lower latitude ones. Isolates from wild birds and poultry are labeled in blue and yellow squares, respectively. The location of the bar indicates the month of the outbreak occurred and its length reflects the corresponding duration (in months) of the outbreak.Back to article page