We are planning to phase out this tool. If it is a part of your workflow, tell us how you use it at info@ncbi.nlm.nih.gov. We value your input. For up-to-date virus sequence data and analysis tools, please visit NCBI Virus.
    This tool helps identify the genotype of a viral sequence. A window is slid
along the query sequence and each window is compared by BLAST to each of the
reference sequences for a particular virus. This approach is especially useful
for the analysis of recombinant sequences.
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