Figure 1.

Unrooted phylogenetic tree showing the relationship over a 123-bp fragment within open reading frame 2 between representative Hepatitis E virus strains reported in this study and other isolates from genotype I (C1, China; P, Pakistan; I, India; BCN, Barcelona, Spain; and B, Burma), genotype II (M, Mexico), genotype III (US1 and US2, United States; Sw, swine; G1 and G2, Greece; It, Italy; and Au, Austria), and genotype IV (C2 and C3, China). Strains from Barcelona, Spain, Washington, D.C., United States, and Nancy, France, are in black.