Figure 5
A Neighbor-joining phylogenetic tree showing the relationships of all RSV A GenBank sequences (649) that we processed for the period 2006–11 combined with the Dadaab sequence data (182). Sequences are compared in the second hyper-variable region of the G gene. The Dadaab sequences are indicated by the coloured triangles; their respective colours indicate the year of detection: maroon: 2007, pink: 2008, green: 2009, blue: 2010, red: 2011. The red arrows point to the nodes (or branches) that bring together sequences of the same genotype or clade identified at Dadaab and the number (n) indicates the number of sequences that fall within that branch. Tips without a triangle imply that the sequence was observed somewhere other than Dadaab. The tree is bootstrapped with 1000 iterations and whenever the percentage was greater than 60, the value is indicated next to the branch.