Proliferative Pododermatitis Associated with Virus-like Particles in a Northern Gannet

Daoust, Pierre‐Yves; Wadowska, Dorota; Kibenge, Frederick S. B.; Campagnoli, Raymond P.; Latimer, Kenneth S.; Ritchie, Branson W.

doi:10.7589/0090-3558-36.2.378

Cited by 10 publications

(6 citation statements)

References 8 publications

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“…Groups of rounded, viral particles with a 35 nm in diameter were found intranuclearly in sections of ultrathin fragments, which confer the literature related to bovine (Tajima et al;Zhou et al;Jelinek &Tachezy, 2005;Maeda et al;Roperto et al), dogs (Buff et al, 1988), deer (Sundberg et al, 1985b), cats (Sundberg et al) and poultry (Daoust et al, 2000). Intracytoplasmic viral particles, cited by Jelineck & Tachezy (2005) in cattle and by Sundberg et al, in cats were not observed in this study, even the crystalline arrangements described by Elzein et al, in cattle and by Sundberg et al, (1985b) in deer.…”

Section: Discussionsupporting

confidence: 52%

Ultrastructural Study of Bovine Papillomavirus During Outbreaks in Brazil

et al. 2013

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SUMMARY:Papillomaviruses, belonging to the Papillomaviridae family, are small oncogenic viruses, causing papillomas and fibropapillomas in the mucosal and cutaneous epithelia of several animals. In bovine species, thirteen types (BPV 1-13) were characterized to date. In this study, the occurrence of papillomatosis in four outbreaks in cattle herds, coming from Brazilian states were registered. The papillomatous lesions were found located in the teats, udders, head and neck. Under the transmission electron microscope, by the negative staining technique, it was possible to visualized rounded-format papillomavirus, with icosahedral symmetry, characterized as "full" and "empty" particles, measuring on average 60 nm in diameter, in all the 40 samples observed of skin lesion fragments. The ultrathin sections revealed the presence of groups of viral, intranuclear, rounded particles measuring 35 nm in diameter and tubular particles with a diameter of 35-39 nm. At immunoelectron microscopy technique, positivity obtained was marked by the presence of aggregates of viral particles formed by the antigen-antibody interaction. In the immunocytochemistry technique, the antigen-antibody reaction showed colloidal gold particles evenly distributed over the surface of the virus. These results showed the importance of the transmission electron microscopy techniques in the diagnosis of bovine papillomatosis that can be used in routine procedures to identify viral agent of this important disease.

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Section: Discussionsupporting

confidence: 52%

Ultrastructural Study of Bovine Papillomavirus During Outbreaks in Brazil

et al. 2013

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“…28,41 Previous evaluation of papillomatous lesions revealed some similarities to virus-induced papillomata of dogs and cats (N. Robert, personal communication, 2009), and thus papillomavirus involvement was suspected. 34 Supporting this hypothesis, virus-like particles were found in a Northern gannet (Morus bassanus) with proliferative pododermatitis 4 and in multiple waterfowl species with verrucous hyperkeratotic lesions. 44 Proliferative foot lesions caused by herpesviruses were found in macaws and cockatoos as well as in a duck with ulcerative foot lesions.…”

supporting

confidence: 50%

“…Three were biopsies of cauliflower-like papillomatous growths (4,19, and 54 years old), and one was collected at necropsy from a 4-year-old with fissures. Spherical intracytoplasmic inclusions (120-140 nm in diameter) were observed in occasional keratinocytes from 2 cases with papillomatous growths (4 and 54 years old).…”

Section: Transmission Electron Microscopymentioning

confidence: 99%

Pododermatitis in Captive and Free-Ranging Greater Flamingos (Phoenicopterus roseus)

Wyss

Schumacher

Wenker³

et al. 2015

Vet Pathol

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Pododermatitis is frequent in captive flamingos worldwide, but little is known about the associated histopathologic lesions. Involvement of a papillomavirus or herpesvirus has been suspected. Histopathologic evaluation and viral assessment of biopsies from 19 live and 10 dead captive greater flamingos were performed. Selected samples were further examined by transmission electron microscopy and immunohistochemistry. Feet from 10 dead free-ranging greater flamingos were also evaluated. The histologic appearance of lesions of flamingos of increasing age was interpreted as the progression of pododermatitis. Mild histologic lesions were seen in a 3-week-old flamingo chick with no macroscopic lesions, and these were characterized by Micrococcus-like bacteria in the stratum corneum associated with exocytosis of heterophils. The inflammation associated with these bacteria may lead to further histologic changes: irregular columnar proliferations, papillary squirting, and dyskeratosis. In more chronic lesions, hydropic degeneration of keratinocytes, epidermal hyperplasia, and dyskeratosis were seen at the epidermis, as well as proliferation of new blood vessels and increased intercellular matrix in the dermis. Papillomavirus DNA was not identified in any of the samples, while herpesvirus DNA was seen only in a few cases; therefore, these viruses were not thought to be the cause of the lesions. Poor skin health through suboptimal husbandry may weaken the epidermal barrier and predispose the skin to invasion of Micrococcus-like bacteria. Histologic lesions were identified in very young flamingos with no macroscopic lesions; this is likely to be an early stage lesion that may progress to macroscopic lesions. Keywords bacteria, bumblefoot, electron microscopy, greater flamingo, histology, Phoenicopterus roseus, pododermatitis, virology Greater flamingos (Phoenicopterus ruber roseus) are kept in captivity worldwide, but especially in Europe (65% of 139 International Species Inventory System [ISIS] member institutions), with a total of approximately 5500 birds. 18 Pododermatitis was the reason for euthanasia or a secondary finding in 95% of the flamingos (18/19) necropsied between 2000 and 2011 at the Institute of Animal Pathology, University of Bern, Switzerland (F. Wyss, unpublished survey, 2011). Corroborating these findings, a survey of the European and North American flamingo population showed varying degrees of gross plantar foot lesions in up to 100% of captive flamingos examined. 28 Many types of birds, including raptors, penguins, water fowl, and cockatiels, develop pododermatitis. 12,14 Wild birds are rarely affected. 9,16,20 This was supported by the evaluation of free-ranging greater flamingos in the Camargue, France, which did not show any foot lesions. 41 Factors influencing the level of pododermatitis have been evaluated mainly from poultry farm data, where nutrition 6,26 and substrate 2,24,25,27 were identified as contributing factors. The types of flooring in water ponds and dietary zinc availability h...

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“…Parenteral antibiotics may be necessitated if the masses grow infected, but the underlying condition will persevere because of the environmental factors (Routh, 2000). The condition has been reported in other birds, including raptors, falcons, eagle, geese, owls, gannet, penguins (Rodriguez-Lainz et al, 1997;Müller et al, 2000;Poorbaghi et al, 2012;Parsad et al, 2010;Gentz, 1996;Daoust et al, 2000;Reidarson et al, 1999) To the author's lore this is the first report of bumblefoot associated with osteomyelitis in mute swan.…”

Section: Introductionmentioning

confidence: 83%

Foot Pad Dermatitis Associated with Osteomyelitis in a Mute Swan (Cygnus olor)

Jahandideh¹,

Manouchehri²,

Jahanshiri³

et al. 2018

American Journal of Animal and Veterinary Sciences

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A Captive mute swan with swelling abscesses in foot pads of both legs was presented. A complete blood count reveals systemic infection. Radiographs showed radiopaque areas in foot pad of both legs and osteomyelitic periosteal reaction in left foot. After anesthesia, surgical debridement was carried out to remove pus and necrotic tissue on the plantar surface of both feet. Full surgical debridement, effective antibiotics, good post-surgical care and husbandry are affecting factors that cause no recurs of disease despite osteomyelitis.

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Proliferative Pododermatitis Associated with Virus-like Particles in a Northern Gannet

Cited by 10 publications

References 8 publications

Ultrastructural Study of Bovine Papillomavirus During Outbreaks in Brazil

Ultrastructural Study of Bovine Papillomavirus During Outbreaks in Brazil

Pododermatitis in Captive and Free-Ranging Greater Flamingos (Phoenicopterus roseus)

Foot Pad Dermatitis Associated with Osteomyelitis in a Mute Swan (Cygnus olor)

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