| molecular detection and genotypic characterization of toxoplasma gondii in wild waterfowls in jilin province, northeastern china. | toxoplasma gondii can infect almost warm-blooded animals, including humans. limited information about t. gondii infection in wild waterfowls is available in china. the present study was conducted to determine prevalence and genotype t. gondii infection in 11 wild waterfowl species in jilin province, northeastern china. a total of 249 wild waterfowls were sampled between april and july 2013 from jilin province, and the tissue samples were collected for the detection of t. gondii by a semi-nested ... | 2015 | 26292258 |
| haemagglutination-inhibiting activity to type a influenza viruses in the sera of wild birds from the far east of the ussr. | the discovery in migrating birds of influenzaviruses and the demonstration of relationships between strains found in man and in birds show the importance of these investigations for influenzavirus ecology. investigation of birds in the far-east regions of the ussr is particularly important as many of them migrate to south-east asia and china, the regions from which human influenza pandemics seem to originate. a total of 262 bird sera from these regions were titrated by the hi method with 20 diff ... | 1972 | 4541006 |
| outbreak of fowl cholera in baikal teals in korea. | fowl cholera (fc) caused by pasteurella multocida was diagnosed in waterfowl, baikal teals (anas formosa), submitted to the national veterinary research and quarantine in korea. the total number of mortalities was 13,228 out of approximately 100,000 birds that wintered in cheonsoo bay, the most important habitat area of baikal teals in the world. clinical signs were detected in only a few birds because of sudden death. grossly, the dead baikal teals had lesions consistent with fc, including mult ... | 2003 | 14709002 |
| pathologic changes in wild birds infected with highly pathogenic avian influenza a(h5n8) viruses, south korea, 2014. | in january 2014, an outbreak of infection with highly pathogenic avian influenza (hpai) a(h5n8) virus began on a duck farm in south korea and spread to other poultry farms nearby. during this outbreak, many sick or dead wild birds were found around habitats frequented by migratory birds. to determine the causes of death, we examined 771 wild bird carcasses and identified hpai a(h5n8) virus in 167. gross and histologic lesions were observed in pancreas, lung, brain, and kidney of baikal teals, be ... | 2015 | 25897841 |
| characterization of an h5n8 influenza a virus isolated from chickens during an outbreak of severe avian influenza in japan in april 2014. | a highly pathogenic avian influenza virus (hpaiv) of subtype h5n8, a/chicken/kumamoto/1-7/2014, was isolated from a japanese chicken farm during an outbreak in april 2014. phylogenetic analysis revealed that this virus belonged to ha clade 2.3.4.4. all eight genomic segments showed high sequence similarity to those of the h5n8 subtype hpaivs a/broiler duck/korea/buan2/2014 and a/baikal teal/korea/donglim3/2014, which were isolated in korea in january 2014. intranasal experimental infection of ch ... | 2015 | 25902725 |
| lessons from the largest epidemic of avian influenza viruses in taiwan, 2015. | the largest epidemic of avian influenza (ai) in history attacked poultry and wild birds throughout taiwan starting january 6, 2015. this study analyzed surveillance results, epidemiologic characteristics, and viral sequences by using government-released information, with the intention to provide recommendations to minimize future pandemic influenza. the h5 clade 2.3.4.4 highly pathogenic ai viruses (hpaivs) had not been detected in taiwan before 2015. during this epidemic, four types of etiologi ... | 2016 | 27309051 |
| Serosurveillance for Japanese encephalitis virus in wild birds captured in Korea. | Climate change induced by recent global warming may have a significant impact on vector-borne and zoonotic diseases. For example, the distribution of Japanese encephalitis virus (JEV) has expanded into new regions. We surveyed the levels of hemagglutination-inhibition (HI) antibodies against JEV (Family Flaviviridae, genus Flavivirus) in wild birds captured in Korea. Blood samples were collected from 1,316 wild birds including the following migratory birds: Oceanodroma castro (n = 4), Anas formo ... | 2011 | 22122903 |
| complete mitochondrial genome of the baikal teal anas formosa (aves, anseriformes, anatidae). | the baikal teal anas formosa (aves, anseriformes, anatidae) is classified as "vulnerable" on the iucn red list. here, whole mitochondrial genome of a. formosa was amplified and sequenced. the total length of the baikal teal mitochondrial genome is 16,594 bp, which consists of 13 protein-coding, 2 rrna, 22 trna genes and 1 control region. the characteristics of the mitochondrial genomes were analyzed and discussed in detail. | 2011 | 22040069 |
| migration of waterfowl in the east asian flyway and spatial relationship to hpai h5n1 outbreaks. | poyang lake is situated within the east asian flyway, a migratory corridor for waterfowl that also encompasses guangdong province, china, the epicenter of highly pathogenic avian influenza (hpai) h5n1. the lake is the largest freshwater body in china and a significant congregation site for waterfowl; however, surrounding rice fields and poultry grazing have created an overlap with wild waterbirds, a situation conducive to avian influenza transmission. reports of hpai h5n1 in healthy wild ducks a ... | 2010 | 20521681 |
| molecular characterization of highly pathogenic avian influenza h5n8 viruses isolated from baikal teals found dead during a 2014 outbreak in korea. | nineteen highly pathogenic avian influenza (hpai) h5n8 viruses were isolated from wild birds in the donglim reservoir in gochang, jeonbuk province, korea, which was first reported to be an outbreak site on january 17, 2014. most genes from the nineteen viruses shared high nucleotide sequence identities (i.e., 99.7% to 100%). phylogenetic analysis showed that these viruses were reassortants of the hpai h5 subtype and the h4n2 strain and that their hemagglutinin clade was 2.3.4.4, which originated ... | 2016 | 26245355 |
| [complex environmental and virological monitoring in the primorye territory in 2003-2006]. | the paper presents the results of monitoring of viruses of western nile (wn), japanese encephalitis (je), tick-borne encephalitis (tbe), geta, influenza a, as well as avian paramicroviruses type i (virus of newcastle disease (nd)) and type 6 (apmv-6) in the primorye territory in 2003-2006. totally throughout the period, specific antibodies to the viruses were detected by neutralization test in wild birds (7.3%, wn; 8.0%, geta; 0.7% batai; 2.8%, alpine hare (lepus timidus); by hemagglutination-in ... | 2007 | 18041224 |