KOU ZHENG1, LI YONGDONG2, LEI FUMIN3, et al. Isolation and Genome Sequence Analysis of an Avian Influenza H5N1 Subtype Virus. [J]. 2007, (6): 717-722.DOI:
One avian influenza virus(A/Chicken/Zhejiang/24/2005) was isolated from duck in Zhejiang province in 2005.Based on the serology test
the isolate was H5N1 subtype.The genome sequences were analyzed.The HA gene had a multiple basic amino acids(—RRKKR—) at the connecting peptide between HA1 and HA2.Phylogeny analysis showed that the 7 genes of the isolate originated from Hunan strains(Ck/HN/999/05
Dk/HN303/04) and the PB1 gene originated from that of an unknown avian strain.Based on the animal test
the isolate was highly pathologic to chicken and duck