| [distribution of avian influenza virus subtypes among domestic ducks in eastern china]. | to identify the distribution of avian influenza virus subtypes among domestic ducks in eastern china. | 2008 | 19160806 |
| [monitoring influenza a virus and newcastle disease virus in migratory waterfowls in sanjiang natural reserve of heilongjiang province]. | in order to monitor the present situation of avian influenza virus (aiv) and newcastle disease virus (ndv) in migratory waterfowls effectively, 158 tracheal and cloacal swab samples for wild birds were collected from sanjiang natural reserve during migratory seasons in october 2005, april 2006 and october 2006. | 2008 | 19160826 |
| the genome sequence of an h11n2 avian influenza virus from a thick-billed murre (uria lomvia) shows marine-specific and regional patterns of relationships to other viruses. | influenza a viruses infect a range of host species, including various mammals and more than 100 species of birds. for avian influenza viruses (aiv), prevalence varies between different groups of birds, with waterfowl showing the highest prevalence. we have sequenced the complete genome of a/thick-billed murre/newfoundland/031/2007(h11n2), an aiv identified in the pelagic seabird, thick-billed murre (uria lomvia). this represents the first complete genome sequence of an aiv from this host species ... | 2010 | 20582460 |
| phylogenetic analysis of avian influenza viruses of h11 subtype isolated in kazakhstan. | avian influenza viruses a/turkey/almaty/535/04 (h11n9) and a/herring gull/atyrau/2186/07 (h11n2) isolated in kazakhstan were characterized as low pathogenic in biological and genetic studies. putative glycosylation sites were identical to the putative sites in published h11, n2, and n9 isolates sequences. compared with published data no additional basic amino acid residues were found in the hemagglutinin (ha) cleavage site of these kazakhstan strains. phylogenetic analysis revealed a rare case o ... | 2011 | 21461588 |
| avian influenza virus wild bird surveillance in the azov and black sea regions of ukraine (2010-2011). | the azov and black sea basins are part of the transcontinental wild bird migration routes from northern asia and europe to the mediterranean, africa, and southwest asia. these regions constitute an area of transit, stops during migration, and nesting for many different bird species. from september 2010 to september 2011, a wild bird surveillance study was conducted in these regions to identify avian influenza viruses. biological samples consisting of cloacal and tracheal swabs and fecal samples ... | 2012 | 23402128 |
| surveillance and characterization of avian influenza viruses from migratory water birds in eastern hokkaido, the northern part of japan, 2009-2010. | avian influenza virus (aiv) surveillance was conducted around a small pond in obihiro, eastern hokkaido, japan. eleven aivs were isolated from a total of 1,269 fecal samples of migratory wild birds collected during 2009 and 2010. the sample number covered approximately 60 % of the total number of birds observed during sampling periods. the subtypes of the isolates included h3n8 (4 isolates), h5n2 (3), h6n2 (2), h6n1 (1), and h11n2 (1). the h3n8 subtype was most prevalent as in the previous studi ... | 2012 | 23264106 |
| influenza a viruses from wild birds in guatemala belong to the north american lineage. | the role wild bird species play in the transmission and ecology of avian influenza virus (aiv) is well established; however, there are significant gaps in our understanding of the worldwide distribution of these viruses, specifically about the prevalence and/or significance of aiv in central and south america. as part of an assessment of the ecology of aiv in guatemala, we conducted active surveillance in wild birds on the pacific and atlantic coasts. cloacal and tracheal swab samples taken from ... | 2012 | 22427902 |
| avian h11 influenza virus isolated from domestic poultry in a colombian live animal market. | live animal markets (lams) are an essential source of food and trade in latin american countries; however, they can also serve as 'hotbeds' for the emergence and potential spillover of avian influenza viruses (aiv). despite extensive knowledge of aiv in asian lams, little is known about the prevalence south american lams. to fill this gap in knowledge, active surveillance was carried out at the major lam in medellin, colombia between february and september 2015. during this period, overall preva ... | 2016 | 27924808 |
| evidence for the introduction, reassortment, and persistence of diverse influenza a viruses in antarctica. | avian influenza virus (aiv) surveillance in antarctica during 2013 revealed the prevalence of evolutionarily distinct influenza viruses of the h11n2 subtype in adélie penguins. here we present results from the continued surveillance of aiv on the antarctic peninsula during 2014 and 2015. in addition to the continued detection of h11 subtype viruses in a snowy sheathbill during 2014, we isolated a novel h5n5 subtype virus from a chinstrap penguin during 2015. gene sequencing and phylogenetic anal ... | 2016 | 27535050 |
| first characterization of avian influenza viruses from greenland 2014. | in late february 2014, unusually high numbers of wild thick-billed murres (uria lomvia) were found dead on the coast of south greenland. to investigate the cause of death, 45 birds were submitted for laboratory examination in denmark. avian influenza viruses (aivs) with subtypes h11n2 and low pathogenic h5n1 were detected in some of the birds. characterization of the viruses by full genome sequencing revealed that all the gene segments belonged to the north american lineage of aivs. the seemingl ... | 2016 | 27309071 |
| identification of an avian polyomavirus associated with adélie penguins (pygoscelis adeliae). | little is known about viruses associated with antarctic animals, although they are probably widespread. we recovered a novel polyomavirus from adélie penguin (pygoscelis adeliae) faecal matter sampled in a subcolony at cape royds, ross island, antarctica. the 4988 nt adélie penguin polyomavirus (adpyv) has a typical polyomavirus genome organization with three orfs that encoded capsid proteins on the one strand and two non-structural protein-coding orfs on the complementary strand. the genome of ... | 2015 | 25537375 |
| local-scale diversity and between-year "frozen evolution" of avian influenza a viruses in nature. | influenza a virus (iav) in wild bird reservoir hosts is characterized by the perpetuation in a plethora of subtype and genotype constellations. multiyear monitoring studies carried out during the last two decades worldwide have provided a large body of knowledge regarding the ecology of iav in wild birds. nevertheless, other issues of avian iav evolution have not been fully elucidated, such as the complexity and dynamics of genetic interactions between the co-circulating iav genomes taking place ... | 2014 | 25075739 |
| detection of evolutionarily distinct avian influenza a viruses in antarctica. | abstract distinct lineages of avian influenza viruses (aivs) are harbored by spatially segregated birds, yet significant surveillance gaps exist around the globe. virtually nothing is known from the antarctic. using virus culture, molecular analysis, full genome sequencing, and serology of samples from adélie penguins in antarctica, we confirmed infection by h11n2 subtype aivs. their genetic segments were distinct from all known contemporary influenza viruses, including south american aivs, sugg ... | 2014 | 24803521 |
| genome sequence of a novel reassortant h3n6 avian influenza virus from domestic mallard ducks in eastern china. | here, we report the complete genome sequence of an h3n6 avian influenza virus (aiv) isolated from domestic ducks in jiangsu province of eastern china in 2010. phylogenetic analysis showed that the h3n6 virus is a natural recombinant virus whose genes were derived from h3n8, h4n6, h6n6, h7n7, and h11n2 aivs. this analysis will help to understand the molecular characteristics and evolution of the h3n6 influenza virus in eastern china. | 2013 | 23580714 |
| genome sequence of a novel reassortant h3n2 avian influenza virus from domestic mallard ducks in eastern china. | the h3 subtype avian influenza virus (aiv) can provide genes for human influenza virus through gene reassortment, which raises great concerns in terms of its potential threat to human health. here, we report the complete genome sequence of a novel h3n2 aiv isolated from domestic ducks in the jiangsu province of eastern china in 2004, which is a natural recombinant virus whose genes are derived from h3n8, h5n1, h5n2, h11n2, h4n6, and h1n1 aivs. this genome will help to understand the epidemiology ... | 2013 | 23580713 |
| complete genome sequence of a novel reassortant h11n2 avian influenza virus isolated from a live poultry market in eastern china. | a/chicken/nanjing/908/2009(h11n2) (ck908) was isolated from a live poultry market in nanjing, china. using pcr and sequencing analysis, we obtained the complete genome sequences of the ck908 virus. the sequence analysis demonstrated that this h11n2 virus was a novel reassortant aiv whose pb1, pb2, pa, ha, np, na, m, and ns genes originated from h9n2, h7n7, h5n2, h11n8, h3n6, h6n2, h1n1, and h5n1, respectively. knowledge regarding the complete genome sequences of the ck908 virus will be useful fo ... | 2012 | 23087108 |