Figure. Phylogenetic tree of Zika virus RNA isolated from travelers returning to Israel. Bayesian maximum clade credibility time-scaled phylogenetic tree (BEAST, http://beast.bio.ed.ac.uk/Main_Page) was generated by using 4 partially sequenced Zika virus envelope genes (231 bp) detected from 4 samples obtained from patients in Israel during 2015–2016 and 19 reference strains belonging to the lineages from Asia and Africa. Isr, Israel; Viet, Vietnam; Col, Colombia; Mex, Mexico. Underlining indicates Zika virus imported from Vietnam. Scale bars indicate units in time (years).