Phylogenetic analysis of open reading frame 2 (ORF2) (411 nucleotides, nt) including patient-derived study sequences (in bold), reference sequences [24] and 97 GT3 sequences. Study samples are indicated by isolate name. The GenBank accession number, location, host and date of isolation, if applicable, are specified for other sequences. The scale bar indicates nucleotide substitution per site. Bootstrap values >70% are indicated. Panel (a) all analyzed ORF2 GT3 sequences by clade; (b) GT3f sequences; (c) GT3e sequences; (d) GT3c sequences. The scale bar represents nucleotide substitutions per site.