Fig. 2

Phylogenetic tree based on 337 nucleotides of partial hepatitis E virus polymerase region of open reading frame 1 of 233 genotype 3 strains. The strains divide into two major groups designated 3I and 3II. The branch within 3II formed by strains circulating in Europe including the strain infecting the patient described in this study is enlarged. The accession numbers, origin and the derivation of the strains from a transplanted patient or other hosts such as swine or wild boar is given at each tip of the branches. BG Bulgaria, D Germany, HTX heart transplant patient, IT Italy, KTX kidney transplant patient, LTX liver transplant patient, lungTX lung transplant patient, NL The Netherlands, SE Sweden. Swedish patient strains are underlined and the strain infecting the patient in this case report is shown in bold