Fig 1.

Alignment of 21 nucleotide sequences of the VP0 region of AiV. The nucleotide sequences corresponding to nt 1872 to 1999 of prototype AiV strain A846/88 (AB040749) are shown. The accession number is indicated on the left side of the sequence. Nucleotide sequences corresponding to the AiV universal primers (AiV-AB-F and AiV-AB-R) and AiV universal probe (AiV-AB-TP) are boxed in solid lines, and genotype-specific primers (AiV-A-TP and AiV-B-TP) are boxed in dashed lines. Arrows and double lines show the locations of the primers and probes, respectively.