Emergence of multiple clade 2.3.2.1 influenza A (H5N1) virus subgroups in Vietnam and detection of novel reassortants. Creanga, A., Thi Nguyen, D., Gerloff, N., Thi Do, H., Balish, A., Dang Nguyen, H., Jang, Y., Thi Dam, V., Thor, S., Jones, J., Simpson, N., Shu, B., Emery, S., Berman, L., Nguyen, H. T., Bryant, J. E., Lindstrom, S., Klimov, A., Donis, R. O., Davis, C. T., & Nguyen, T. Virology, 444(1-2):12–20, September, 2013.
doi  abstract   bibtex   
Phylogenetic analyses of 169 influenza A(H5N1) virus genomes were conducted for samples collected through active surveillance and outbreak responses in Vietnam between September 2010 and September 2012. While clade 1.1 viruses persisted in southern regions, three genetically distinct subgroups of clade 2.3.2.1 were found in northern and central Vietnam. The identification of each subgroup corresponded with detection of novel reassortants, likely due to their overlapping circulation throughout the country. While the previously identified clade 1.1 and A/Hubei/1/2010-like 2.3.2.1 genotypes remained the predominant viruses detected, four viruses were found to be reassortants between A/Hubei/1/2010-like (HA, NA, PB2, PB1, PA, NP) and A/duck/Vietnam/NCVD-885/2010-like (M, NS) viruses and one virus was identified as having A/duck/Vietnam/NCVD-885/2010-like HA, NA, PB1, and NP with A/Hubei/1/2010-like PB2 and PA genes. Additionally, clade 2.3.2.1 A/Hong Kong/6841/2010-like viruses, first detected in mid-2012, were identified as reassortants comprised of A/Hubei/1/2010-like PB2 and PA and A/duck/Vietnam/NCVD-885/2010-like PB1, NP, NA, M, NS genes.
@article{creanga_emergence_2013,
	title = {Emergence of multiple clade 2.3.2.1 influenza {A} ({H5N1}) virus subgroups in {Vietnam} and detection of novel reassortants.},
	volume = {444},
	copyright = {Published by Elsevier Inc.},
	issn = {1096-0341 0042-6822},
	doi = {10.1016/j.virol.2013.06.005},
	abstract = {Phylogenetic analyses of 169 influenza A(H5N1) virus genomes were conducted for samples collected through active surveillance and outbreak responses in Vietnam between September 2010 and September 2012. While clade 1.1 viruses persisted in southern regions, three genetically distinct subgroups of clade 2.3.2.1 were found in northern and central Vietnam. The identification of each subgroup corresponded with detection of novel reassortants, likely due to their overlapping circulation throughout the country. While the previously identified clade 1.1 and A/Hubei/1/2010-like 2.3.2.1 genotypes remained the predominant viruses detected, four viruses were found to be reassortants between A/Hubei/1/2010-like (HA, NA, PB2, PB1, PA, NP) and A/duck/Vietnam/NCVD-885/2010-like (M, NS) viruses and one virus was identified as having A/duck/Vietnam/NCVD-885/2010-like HA, NA, PB1, and NP with A/Hubei/1/2010-like PB2 and PA genes. Additionally, clade 2.3.2.1 A/Hong Kong/6841/2010-like viruses, first detected in mid-2012, were identified as reassortants comprised of A/Hubei/1/2010-like PB2 and PA and A/duck/Vietnam/NCVD-885/2010-like PB1, NP, NA, M, NS genes.},
	language = {eng},
	number = {1-2},
	journal = {Virology},
	author = {Creanga, Adrian and Thi Nguyen, Diep and Gerloff, Nancy and Thi Do, Hoa and Balish, Amanda and Dang Nguyen, Hoang and Jang, Yunho and Thi Dam, Vui and Thor, Sharmi and Jones, Joyce and Simpson, Natosha and Shu, Bo and Emery, Shannon and Berman, LaShondra and Nguyen, Ha T. and Bryant, Juliet E. and Lindstrom, Steve and Klimov, Alexander and Donis, Ruben O. and Davis, C. Todd and Nguyen, Tung},
	month = sep,
	year = {2013},
	pmid = {23849789},
	keywords = {*Phylogeography, Animals, Cluster Analysis, Evolution, Genotype, Geographic distribution, H5N1, Highly pathogenic avian influenza virus, Influenza A Virus, H5N1 Subtype/*classification/*genetics/isolation \& purification, Influenza in Birds/*virology, Molecular Sequence Data, Orthomyxovirus, Phylogenetics, Poultry, RNA, Viral/*genetics, Real-Time Polymerase Chain Reaction, Reassortant Viruses/*classification/*genetics/isolation \& purification, Reassortment, Sequence Analysis, DNA, Vietnam},
	pages = {12--20},
}

Downloads: 0