Figure 2. Neighbor-joining phylogeny of Aichi virus (AiV) viral protein 1 gene of strains from study of AiV in patients with acute diarrhea (boldface), Germany, compared with strains from GenBank. The tree was generated by using MEGA4 (www.megasoftware.net) using the maximum-composite likelihood nucleotide substitution model and complete deletion option. Porcine kobuvirus was used as an outgroup (branch truncated as indicated by slashed lines). Bootstrap values from 1,000 reiterations are depicted next to root points. The final dataset corresponded to nucleotide positions 3,034–3,663 in AiV GenBank accession no. AB040749. Scale bar indicates number of base substitutions per site.