This webpage is no longer updated with new GenBank sequences from pandemic (H1N1) 2009 viruses. Such data are available in the NCBI Influenza Virus Sequence Database by defining the GenBank release date. For example, pandemic (H1N1) 2009 virus sequences released in GenBank between June 30 and July 6, 2010 can be retrieved using this database query. All submitted influenza sequences are available i