| mycobacterium genavense and avian polyomavirus co-infection in a european goldfinch (carduelis carduelis). | systemic mycobacteriosis associated with avian polyomavirus infection was diagnosed histologically in an 8-year-old, captive european goldfinch with a history of nervous signs. severe mycobacterial lesions were observed in the central nervous system, lungs, cervical air sacs and adrenal glands, without involvement of the gastrointestinal tract. in addition to mycobacteriosis, intranuclear inclusions, typical of polyomavirus, were identified in the adrenal glands. polymerase chain reaction assays ... | 2007 | 17899468 |
| genomic evolution of avian polyomaviruses with a focus on budgerigar fledgling disease virus. | gammapolyomaviruses may cause serious inflammatory diseases in a broad range of avian hosts. in this study we investigated genomic evolution of and selection constraint acting on avian polyomaviruses (apyvs). our analyses suggested that goose haemorrhagic polyomavirus (ghpv) evolves more slowly (3.03 × 10-5 s/s/y mean evolutionary rate) than budgerigar fledgling disease virus (bfdv), finch polyomavirus (fpyv) and canary polyomavirus (capyv) (1.39 × 10-4 s/s/y, 2.63 × 10-4 s/s/y and 1.41 × 10-4 s ... | 2021 | 33571686 |
| polyomavirus infection in gouldian finches (erythrura gouldiae) and other pet birds of the family estrildidae. | a syndrome characterized by apathy, diarrhoea and high mortality of nestlings was observed in a flock of pet birds of the family estrildidae. enlargement of the liver, pulmonary congestion and urate accretions in the kidney were observed. microscopically, there was glomerular atrophy, oedema and congestion of the lungs and necrosis and fibrosis of the liver. cowdry type b intranuclear inclusion bodies were detected in the tissues. polyomavirus was detected by polymerase chain reaction. the entir ... | 2017 | 28238305 |
| production and biomedical applications of virus-like particles derived from polyomaviruses. | virus-like particles (vlps), aggregates of capsid proteins devoid of viral genetic material, show great promise in the fields of vaccine development and gene therapy. these particles spontaneously self-assemble after heterologous expression of viral structural proteins. this review will focus on the use of virus-like particles derived from polyomavirus capsid proteins. since their first recombinant production 27 years ago these particles have been investigated for a myriad of biomedical applicat ... | 2013 | 23999392 |
| [detection of dna of the finch polyomavirus in diseases of various types of birds in the order passeriformes]. | between 2000 and 2004 a disease occurred in an aviary in germany affecting various bird species belonging to the order passeriformes including collared grosbeaks (mycerobas affinis), eurasian bullfinches (pyrrhula pyrrhula griseiventris), brown bullfinches (pyrrhula nipalensis), grey-headed bullfinches (pyrrhula erythaca) and yellow-bellied tits (periparus venustulus). the major clinical signs included increased mortality of fledglings and young birds, as well as feather disorders and feather lo ... | 2007 | 17416133 |
| characterization of two novel polyomaviruses of birds by using multiply primed rolling-circle amplification of their genomes. | polyomaviruses are small nonenveloped particles with a circular double-stranded genome, approximately 5 kbp in size. the mammalian polyomaviruses mainly cause persistent subclinical infections in their natural nonimmunocompromised hosts. in contrast, the polyomaviruses of birds--avian polyomavirus (apv) and goose hemorrhagic polyomavirus (ghpv)--are the primary agents of acute and chronic disease with high mortality rates in young birds. screening of field samples of diseased birds by consensus ... | 2006 | 16537620 |
| serological cross-reactions between four polyomaviruses of birds using virus-like particles expressed in yeast. | polyomaviruses are aetiological agents of fatal acute diseases in various bird species. genomic analysis revealed that avian polyomavirus (apyv), crow polyomavirus (cpyv), finch polyomavirus (fpyv) and goose hemorrhagic polyomavirus (ghpyv) are closely related to each other, but nevertheless form separate viral species; however, their serological relationship was previously unknown. as only apyv can be grown efficiently in tissue culture, virus-like particles (vlps) were generated by expression ... | 2012 | 22933666 |
| avian polyomavirus identified in a nestling gouldian finch (erythrura gouldiae) in new zealand. | abstract | 2013 | 23445119 |
| complete genome sequence of a variant pyrrhula pyrrhula polyomavirus 1 strain isolated from white-headed munia (lonchura maja). | a novel variant of finch polyomavirus has been identified and sequenced from a diseased white-headed munia (lonchura maja). | 2016 | 27908985 |