FIG. 2.

Phylogenetic analysis based on the partial nucleotide sequence (468 bp) of the 3CD-encoding gene of the Aichi virus strains associated with pediatric gastroenteritis in Monastir, Tunisia, between January 2003 and April 2007. The tree was constructed by clustering using the unweighted-pair group method using average linkages. The reference strains are identified in this tree by their GenBank accession numbers. nucl, nucleotides. Number on the scale bar at the top of the figure represent percent similarity of nucleotides.