| parrot bornavirus-2 and -4 rna detected in wild bird samples in japan are phylogenetically adjacent to those found in pet birds in japan. | bornaviruses (family bornaviridae) are non-segmented negative-strand rna viruses. avian bornaviruses (abvs), which are causative agents of proventricular dilatation disease, are a genetically diverse group with at least 15 genotypes, including parrot bornaviruses (pabvs) and aquatic bird bornavirus 1(abbv-1). borna disease virus 1(bodv-1), which infects mammals and causes neurological diseases, has also been reported to infect avian species, although the numbers of the cases have been markedly f ... | 2015 | 26315330 |
| phylogenetic analysis supports horizontal transmission as a driving force of the spread of avian bornaviruses. | avian bornaviruses are a genetically diverse group of viruses initially discovered in 2008. they are known to infect several avian orders. bornaviruses of parrots and related species (psittaciformes) are causative agents of proventricular dilatation disease, a chronic and often fatal neurologic disease widely distributed in captive psittacine populations. although knowledge has considerably increased in the past years, many aspects of the biology of avian bornaviruses are still undiscovered. in ... | 2016 | 27537693 |
| aquatic bird bornavirus 1 infection in a captive emu (dromaius novaehollandiae): presumed natural transmission from free-ranging wild waterfowl. | an adult female emu (dromaius novaehollandiae) presented with anorexia, maldigestion, weight loss, and various subtle nervous deficits. after four months of unrewarding diagnostics, treatments, and supportive care, the emu was euthanized due to lack of clinical improvement and progressive weight loss. gross pathology revealed a very narrow pylorus and multiple flaccid diverticula of the small intestines. histopathological findings included severe lymphoplasmacytic encephalomyelitis and multifoca ... | 2017 | 28862888 |
| aquatic bird bornavirus-associated disease in free-living canada geese ( branta canadensis ) in the northeastern usa. | during the winter of 2013-14, 22 canada geese ( branta canadensis ) were admitted to the wildlife clinic at the cummings school of veterinary medicine at tufts university with nonspecific neurologic abnormalities and emaciation. five of these geese, along with three geese that were submitted dead, were evaluated via histopathology, immunohistochemistry, and reverse transcription pcr (rt-pcr) for bornaviruses. histopathologically, six of the eight birds had lymphoplasmacytic encephalitis. one bir ... | 2017 | 28445657 |
| avian bornaviruses in north american gulls. | avian bornaviruses, recently described members of the family bornaviridae, have been isolated from captive parrots and passerines as well as wild waterfowl in which they may cause lethal neurologic disease. we report detection of avian bornavirus rna in the brains of apparently healthy gulls. we tested 439 gull brain samples from 18 states, primarily in the northeastern us, using a reverse-transcriptase pcr assay with primers designed to detect a conserved region of the bornavirus m gene. nine b ... | 2015 | 25973630 |
| aquatic bird bornavirus 1 in wild geese, denmark. | to investigate aquatic bird bornavirus 1 in europe, we examined 333 brains from hunter-killed geese in denmark in 2014. seven samples were positive by reverse transcription pcr and were 98.2%-99.8% identical; they were also 97.4%-98.1% identical to reference strains of aquatic bird bornavirus 1 from geese in north america. | 2015 | 26584356 |
| in vitro and in ovo host restriction of aquatic bird bornavirus 1 in different avian hosts. | aquatic bird bornavirus 1 (abbv-1) is associated with chronic meningoencephalitis and ganglioneuritis. although waterfowl species act as the natural host of abbv-1, the virus has been sporadically isolated from other avian species, showing the potential for a broad host range. to evaluate the host restriction of abbv-1, and its potential to infect commercial poultry species, we assessed the ability of abbv-1 to replicate in cells and embryos of different avian species. abbv-1 replication was mea ... | 2020 | 33171813 |
| isolation of ontario aquatic bird bornavirus 1 and characterization of its replication in immortalized avian cell lines. | aquatic bird bornavirus 1 (abbv-1) has been associated with neurological diseases in wild waterfowls. in canada, presence of abbv-1 was demonstrated by rt-qpcr and immunohistochemistry in tissues of waterfowls with history of neurological disease and inflammation of the central and peripheral nervous tissue, although causation has not been proven by pathogenesis experiments, yet. to date, in vitro characterization of abbv-1 is limited to isolation in primary duck embryo fibroblasts. the objectiv ... | 2020 | 32005267 |