Fig. 3From: Epidemiological survey and genetic characterization of type 3 vaccine-derived poliovirus isolated from a patient with four doses of inactivated polio vaccine in Henan Province, ChinaPhylogenetic trees of various genomic sequences constructed based on regions before and after crossover site of Henan type 3 VDPV. A Phylogenetic tree constructed based on regions before the crossover site (nt1-nt4899) of Henan aVDPV; B Phylogenetic tree constructed based on regions after the crossover site (nt4900-nt7431) of Henan aVDPV. Henan type 3 VDPVs are represented by red solid circles. HeN Henan, GZ Guizhou, CHN China, RUS Russia, USA The United StatesBack to article page