Clade 2.3.4 viruses that are dominant in southern China have now spread to northern Vietnam. Phylogenetic analysis of influenza subtype H5N1 viruses isolated from Vietnam during 2005–2007 shows that multiple sublineages are present in Vietnam. Clade 2.3.4 viruses have replaced clade 1 viruses in northern Vietnam, and clade 1 viruses have been detected in southern Vietnam. Reassortment between these 2 sublineages has also occurred.
All Keywords
【저자키워드】 Virus evolution, Molecular epidemiology, Southeast Asia, highly pathogenic avian influenza, dispatch, genotype Z,
【저자키워드】 Virus evolution, Molecular epidemiology, Southeast Asia, highly pathogenic avian influenza, dispatch, genotype Z,