Need to know which hemagglutinin proteins were carried last year by influenza viruses in Asia? Want to compare your viral samples to the deadly H5N1 subtype? Visit the Influenza Virus Resource from the U.S. National Center for Biotechnology Information, which houses all influenza virus sequences stashed in GenBank and provides tools for analyzing them. Users can dissect viral proteins and nucleotide sequences from all over the world and from a variety of hosts, including humans, pigs, and birds.
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