Fig. 3.

Phylogenetic relationships of selected enterovirus serotypes detected in this study, Philippines, 2009. a Rare serotypes. b Other enteroviruses. c Recently identified serotype. d Emerging serotype. Phylogenetic trees were constructed for each serotype by the neighbor-joining method implemented in MEGA 5.0. Filled triangle EV strains detected from stool samples in acute flaccid paralysis surveillance in the Philippines. Filled square strains detected from this study (urban river samples). Filled circle strains detected from this study (rural river samples). EV enteroviruses, CV coxsackieviruses, PEV porcine enteroviruses