Prevalence of Aves Polyomavirus 1 and Beak and Feather Disease Virus From Exotic Captive Psittacine Birds in Chile

González-Hein, Gisela; Gil, Isabel Aguirre; Sánchez, Rodolfo A.; Huaracán, Bernardo

doi:10.1647/2018-349

Cited by 7 publications

(3 citation statements)

References 48 publications

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“…A screening conducted on captive individuals seized from illegal trade in Brazil showed evidence of BFDV at low prevalence in two native species [10]. The genomic similarity of the isolates with reference strains from Asia and Oceania suggested an exotic origin of BFDV strains disseminated in captivity in South America [10,11].…”

Section: Introductionmentioning

confidence: 99%

High Prevalence of Novel Beak and Feather Disease Virus in Sympatric Invasive Parakeets Introduced to Spain From Asia and South America

et al. 2020

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The psittacine beak and feather disease (PBFD) is a globally widespread infectious bird disease that mainly affects species within the Order Psittaciformes (parrots and allies). The disease is caused by an avian circovirus (the beak and feather disease virus, BFDV), which is highly infectious and can lead to severe consequences in wild and captive populations during an outbreak. Both legal and illegal trading have spread the BFDV around the world, although little is known about its prevalence in invasive parrot populations. Here, we analyze the BFDV prevalence in sympatric invasive populations of rose-ringed (Psittacula krameri) and monk parakeets (Myiopsitta monachus) in Southern Spain. We PCR-screened 110 blood samples (55 individuals from each species) for BFDV and characterized the genotypes of five positives from each species. About 33% of rose-ringed parakeets and 37% of monk parakeets sampled were positive for BFDV, while neither species showed disease symptoms. The circovirus identified is a novel BFDV genotype common to both species, similar to the BFDV genotypes detected in several parrot species kept in captivity in Saudi Arabia, South Africa and China. Our data evidences the importance of an accurate evaluation of avian diseases in wild populations, since invasive parrots may be bringing BFDV without showing any visually detectable clinical sign. Further research on the BFDV prevalence and transmission (individual–individual, captive–wild and wild–captive) in different bird orders and countries is crucial to understand the dynamics of the viral infection and minimize its impact in captive and wild populations.

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Section: Introductionmentioning

confidence: 99%

High Prevalence of Novel Beak and Feather Disease Virus in Sympatric Invasive Parakeets Introduced to Spain From Asia and South America

et al. 2020

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“…A distribuição do circovírus em psitacídeos mantidos sob cuidados humanos já foi relatada em quase todos os continentes, como por exemplo, no continente oceânico, na Austrália, nas ilhas do Pacífico (Julian et al, 2012) e na Nova Zelândia (Massaro et al, 2012); no continente europeu, na Alemanha (Kessler et al, 2020), Áustria (Hess et al, 2004), Espanha (Piçarra, 2009), Itália (Bert et al, 2005;Robino et al, 2014), Portugal (Henriques et al, 2010) e Polônia (Julian et al, 2013); no continente asiático, na Arábia Saudita (Hakami et al, 2017), China (Cheng et al, 2019) e Japão (Katoh et al, 2010); no continente africano, na África do Sul (Kondiah et al, 2006); e, por fim, no continente americano, nos Estados Unidos da América (Fogell et al, 2016), Costa Rica (Dolz et al, 2013), Chile (González-Hein et al, 2019) e no Brasil (Werther et al, 1999;Araújo et al, 2015).…”

Section: Distribuição E Espécies Susceptíveisunclassified

Infecção por circovírus em psitacídeos

Ghizoni

Raso

2023

Med. Vet. (UFRPE)

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O circovírus é um DNA vírus, não envelopado, de fita simples e o agente etiológico da circovirose em aves, que acomete comumente os psitacídeos causando a Doença do Bico e das Penas dos Psitacídeos (Psittacine Beak and Feather Disease - PBFD). A enfermidade é altamente contagiosa e letal, sendo considerada exótica no Brasil. O objetivo da presente revisão é descrever as principais características virais e clínicas do circovírus na Ordem Psittaciformes. O circovírus é de fácil disseminação e sua transmissão ocorre principalmente por aerossóis e pelo pó das penas. Os principais sinais clínicos envolvem alterações e distrofias de penas e, em menor ocorrência, alterações em bico. Sua manifestação clínica ocorre de acordo com a idade e a condição imunológica da ave, podendo se apresentar na forma hiperaguda, aguda ou crônica. Devido sua característica imunossupressora, o óbito por infecções secundárias é comumente relatado. O principal método de diagnóstico laboratorial na atualidade é a reação em cadeia pela polimerase (PCR). Não existe tratamento efetivo para a circovirose (PBFD) e a eutanásia é indicada como forma de controle da doença. Medidas de quarentena e higiene rigorosa devem ser aplicadas para evitar a disseminação do agente em um plantel e, principalmente, o escape viral para vida livre. Isso se faz necessário sobretudo no Brasil, país que detém uma rica diversidade de espécies de psitacídeos.

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“…However, BFDV infection in adults is only associated with mild symptoms such as feather dystrophies (French molt) [ 9 13 ]. BFDV infection has been reported in several species of psittacine birds on almost every continent, including countries such as China [ 4 ], Japan [ 14 ], Taiwan [ 2 15 ], Turkey [ 16 ], Pakistan [ 17 ], Thailand [ 18 ], Australia [ 19 ], New Zealand [ 20 ], Egypt [ 21 ], Germany [ 22 ], Czech Republic [ 23 ], Italy [ 24 ], Poland [ 25 ], Chile [ 26 ], Costa Rica [ 27 ], and USA [ 28 ]. In Korea, the virus was first detected in an Alexandrine parakeet ( Psittacula eupatria ) in 2014 [ 29 ], and in an African gray parrot ( Psittacus erithacus ) that was co-infected with Psittacine beak and feather disease, as well as and Aspergillus fumigatus and BFDV in 2017 [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Molecular characteristics of Budgerigar fledgling disease polyomavirus detected from parrots in South Korea

Kim

2022

J Vet Sci

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Background Budgerigar fledgling disease polyomavirus (BFDV) is the pathogen that causes budgerigar fledgling disease in psittacine species. The clinical signs of PBFV infection include ascites, hepatitis, and crop stasis. BFDV is associated with a high mortality rate in nestling birds. In contrast, adult birds only have mild symptoms such as feather dystrophy. Objectives This study aimed to determine the prevalence, genetic characteristics, and phylogenetic analysis of BFDV in pet parrots in Korea. Methods Fecal and tissue samples were collected from 217 pet parrots from 10 veterinary hospitals including Chungbuk National University Veterinary Hospital. The molecular screening was performed using polymerase chain reaction (PCR) analysis of the small t/large T antigen gene segment. Full-length genome sequencing with the Sanger and phylogenetic analysis were performed on BFDV-positive samples. Results The PCR results based on the small t/large T antigen gene marker indicated that BFDV DNA was present in 10 out of 217 screened samples. A whole-genome sequence was obtained from six strains and phylogenetic analysis revealed no significant relationship existed between the species and geographical locations amongst them. Conclusions The prevalence of BFDV infection in South Korea is not high when compared to the prevalence of BFDV in other parts of the world, however, it has been reported sporadically in various species and geographic locations. The whole-genome analysis revealed 0.2%–0.3% variation in intragenomic homogeneity among the six strains analyzed. Korean strains are separately on the phylogenetic tree from their counterparts from China and Japan which might reflect the substantial genetic variation.

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Prevalence of Aves Polyomavirus 1 and Beak and Feather Disease Virus From Exotic Captive Psittacine Birds in Chile

Cited by 7 publications

References 48 publications

High Prevalence of Novel Beak and Feather Disease Virus in Sympatric Invasive Parakeets Introduced to Spain From Asia and South America

High Prevalence of Novel Beak and Feather Disease Virus in Sympatric Invasive Parakeets Introduced to Spain From Asia and South America

Infecção por circovírus em psitacídeos

Molecular characteristics of Budgerigar fledgling disease polyomavirus detected from parrots in South Korea

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