GAGGGTAAAATGCAGA AGGACTGGGAGCGGGTGTA GCCTTTACGATCCGCTGTACC ACCTGGACGCTGAATGCAA GCTGAGGGTGTCGAAGAGGT TTAGTTGGCCATTCCAGGAC CTCTCCTCTCCAGTACGTCCTTCC CCGTTCTTCATCCAGGTGATdoi:ten.1371/journal.pone.0095539.tPLOS

GAGGGTAAAATGCAGA AGGACTGGGAGCGGGTGTA GCCTTTACGATCCGCTGTACC ACCTGGACGCTGAATGCAA GCTGAGGGTGTCGAAGAGGT TTAGTTGGCCATTCCAGGAC CTCTCCTCTCCAGTACGTCCTTCC CCGTTCTTCATCCAGGTGATdoi:ten.1371/journal.pone.0095539.tPLOS 1 | www.plosone.orgTable 4. Frequency of H5N1 viruses with double deletions inside the NA and NS proteins from 1996 to 2012a.Year Viruses…