FIG. 1.

Phylogenetic analysis of the Aichi viruses recovered from urban sewage, based on a 391-bp fragment of the genomic 3CD region junction, corresponding to positions 6322 to 6713 of the genomic sequence of the reference strain AB010145. The tree was constructed using the minimum evolution method as implemented in the package MEGA 4. The bar is in units of base substitutions per site. Bootstrap values (>75) are indicated for the corresponding nodes, based on a resampling analysis of 1,000 replicates. Venezuelan isolates are indicated in boldface type.