Incidence and detection of beak and feather disease virus in psittacine birds in the UAE

Hakimuddin, Fatima; Abidi, Fatma; Jafer, Osman; Li, C.; Wernery, Ulrich; Hebel, C.; Khazanehdari, Kamal

doi:10.1016/j.bdq.2015.10.001

Cited by 13 publications

(7 citation statements)

References 16 publications

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“…BFDV is specific for members of the Psittacidae and causes psittacine beak and feather disease (PBFD), which is characterized by abnormally shaped feathers and beak in chronic forms and sudden death in acute forms ( 1 – 3 ). BFDV has been found worldwide and has been detected in a large variety of bird species ( 4 – 6 ).…”

Section: Genome Announcementmentioning

confidence: 99%

Complete Genome Sequence of Beak and Feather Disease Virus Isolated from an African Grey Parrot in China in 2017

Guo

Chang

2018

Genome Announc

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Section: Genome Announcementmentioning

confidence: 99%

Complete Genome Sequence of Beak and Feather Disease Virus Isolated from an African Grey Parrot in China in 2017

Guo

Chang

2018

Genome Announc

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“…Vaccines for PBFDV has been recently developed but not yet commercialized. In captive environment, the major measures for controlling PBFDV infection are better hygiene and early diagnosis, usually performed using polymerase chain reaction [PCR; 10,11]. Infected individuals, even asymptomatic, could shed virus in their crop secretion, feces, or feathers, which contaminate the environment [41].…”

Section: Introductionmentioning

confidence: 99%

“…The virus can infect most, if not all, psittacine species, which is particularly concerning due to the endangered status of many parrot species [8, 10, 21, 44, 51]. The global trade of parrots has been shown to play a significant role in disseminating the virus across different continents, including Asia, Africa, the Americas, Europe, and Australasia [3, 4, 9, 11, 12, 26]. Recent reports also highlighted the increasing PBFDV occurrence in non-psittacine species [1, 36].…”

Section: Introductionmentioning

confidence: 99%

Temporal characterization of the viral load of psittacine beak and feather disease virus in rosy-faced lovebirds (Agapornis roseicollis)

Lam,

Kei Poon,

Sin

2024

Preprint

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Psittacine beak and feather disease virus (PBFDV) is a widespread and highly pathogenic virus in parrots (Psittaciformes), threatening both captive and wild populations over the world. The disease typically presents with feather and beak abnormalities, along with possible immune system suppression. No cure or commercialized vaccine is currently available. Our understanding of the Psittacine beak and feather disease often come from infected individuals with visible symptoms. Limited knowledge exists regarding the pathology and role of asymptomatic individuals in disease transmission. Asymptomatic individuals could shed virus in their crop secretion, feces, or feathers. In this study, we investigated the temporal change in viral load in feather and fecal samples from 17 asymptomatic rosy-faced lovebirds (Agapornis roseicollis). We developed a qPCR assay for PBFDV viral load quantification in the studied lovebirds. Our results showed that most of the individuals had very low viral load, while three individuals with high viral load at the beginning of the experiment were observed to exhibit a decreasing trend in viral load in both fecal and feather samples. Surprisingly, the viral load in an individual can drop from a high level to an undetectable level within three months, which is contrary to the prevailing notion that the disease is highly lethal with few reports of complete recovery. We also showed that viral load in feathers was higher than in feces. Our study provides valuable insights into the infection dynamics of PBFDV in asymptomatic individuals and contribute to the understanding of disease transmission in parrots.

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“…These findings emphasize the need for surveillance of both viruses at the local level, especially in countries or regions where bird trading is prevalent. In the past decade, the prevalence and genotypes of PBFDV and BFDV in both captive and wild birds and their phylogenetic relationships to known strains have been studied in numerous countries or regions [ 3 , 27 – 30 ]. In particular, risk factors such as young host age, certain host species [ 31 , 32 ], and sources of sampled birds, i.e., breeding facilities vs. households or veterinary hospitals [ 33 – 35 ], have been identified.…”

Section: Introductionmentioning

confidence: 99%

Prevalence, genotypes, and infection risk factors of psittacine beak and feather disease virus and budgerigar fledgling disease virus in captive birds in Hong Kong

Ko,

Choi,

Poon

et al. 2024

Arch Virol

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Psittacine beak and feather disease virus (PBFDV) and budgerigar fledgling disease virus (BFDV) are significant avian pathogens that threaten both captive and wild birds, particularly parrots, which are common hosts. This study involved sampling and testing of 516 captive birds from households, pet shops, and an animal clinic in Hong Kong for PBFDV and BFDV. The results showed that PBFDV and BFDV were present in 7.17% and 0.58% of the samples, respectively. These rates were lower than those reported in most parts of Asia. Notably, the infection rates of PBFDV in pet shops were significantly higher compared to other sources, while no BFDV-positive samples were found in pet shops. Most of the positive samples came from parrots, but PBFDV was also detected in two non-parrot species, including Swinhoe’s white-eyes (Zosterops simplex), which had not been reported previously. The ability of PBFDV to infect both psittacine and passerine birds is concerning, especially in densely populated urban areas such as Hong Kong, where captive flocks come into close contact with wildlife. Phylogenetic analysis of the Cap and Rep genes of PBFDV revealed that the strains found in Hong Kong were closely related to those in Europe and other parts of Asia, including mainland China, Thailand, Taiwan, and Saudi Arabia. These findings indicate the presence of both viruses among captive birds in Hong Kong. We recommend implementing regular surveillance for both viruses and adopting measures to prevent contact between captive and wild birds, thereby reducing the transmission of introduced diseases to native species.

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Incidence and detection of beak and feather disease virus in psittacine birds in the UAE

Cited by 13 publications

References 16 publications

Complete Genome Sequence of Beak and Feather Disease Virus Isolated from an African Grey Parrot in China in 2017

Complete Genome Sequence of Beak and Feather Disease Virus Isolated from an African Grey Parrot in China in 2017

Temporal characterization of the viral load of psittacine beak and feather disease virus in rosy-faced lovebirds (Agapornis roseicollis)

Prevalence, genotypes, and infection risk factors of psittacine beak and feather disease virus and budgerigar fledgling disease virus in captive birds in Hong Kong

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