Mortality in psittacine birds resembling Pacheco's disease in Spain

Gómez-Villamandos, J.C.; Mozos, E.; Sierra, M. A.; Fernandez, A.; Diaz, Frank

doi:10.1080/03079459108418791

Cited by 19 publications

(17 citation statements)

References 9 publications

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“…Intracytoplasmatic clusters of virions, both with or without envelopes, have been reported in cytomegalovirus infections (Desmidt et al, 1991), duck viral enteritis (Barr et al, 1992) and Pacheco's disease (Gómez-Villamandos et al, 1991). Our studies showed intranuclear tubular structures associated with viral replication in different infected cells.…”

Section: Discussionsupporting

confidence: 54%

“…The spleen presented similar changes to the liver, but necrotic lesions tended to be more severe. In general, the lesions described more closely resembled those characteristic of duck viral enteritis (Leibovitz, 1971;Barr et al, 1992;Davison et al, 1993) than owl hepatoesplenitis (Burtscher & Schumacher, 1966;Gómez-Villamandos et al, 1994a), inclusion body disease of falcon (Graham et al, 1975;Blandsford and Keymer, 1987;Mozos et al, 1994), herpesvirus infection in crane (Burtscher & Grünberg, 1979) or Pacheco's disease (Gómez-Villamandos et al, 1991;Tsai et al 1993), where the primary affected organs are the liver and spleen. On the other hand, viral replication in the oesophagus and gizzard, described both here and for duck viral enteritis (Barr et al, 1992;Davison et al, 1993) indicates that this virus has a marked tropism for digestive epithelium.…”

Section: Discussionmentioning

confidence: 99%

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Haemorrhagic enteritis associated with herpesvirus in storks

Gómex‐Villamandos¹,

Hervás²,

Salguero³

et al. 1998

Avian Pathology

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Herpesvirus infection was diagnosed histologically and electron microscopically in white storks (Ciconia ciconia) and abdim storks (Ciconia abdimi). The consistent lesions of herpesvirus infection were haemorrhagic enteritis, with a slight mononuclear cellular infiltrate, dilatation of the crypts lined by a flat epithelium, necrotic foci in the spleen, and focal or scattered coagulative necrosis in the liver without cellular reaction. Intranuclear inclusion bodies were observed in epithelial cells, endothelial cells, lymphocytes, macrophages/monocytes, fibroblasts and smooth muscle cells in digestive tract, spleen, liver, ovary, oviduct and lung.Ultrastructurally, characteristic herpesvirus replication sites were observed in the nuclei of infected cells, with clusters of intracytoplasmic virions and associated structures, intranuclear tubular structures and filamentous aggregates.

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Section: Discussionsupporting

confidence: 54%

Section: Discussionmentioning

confidence: 99%

Haemorrhagic enteritis associated with herpesvirus in storks

Gómex‐Villamandos¹,

Hervás²,

Salguero³

et al. 1998

Avian Pathology

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“…1C) [105]. PD has been observed in the U.S.A. [60,92], UK [25], Spain [22], Kenya [44], South Africa [35], and Japan [105].…”

Section: Psittacine Beak and Feather Disease (Circovirus Infection)mentioning

confidence: 99%

A Review of DNA Viral Infections in Psittacine Birds

et al. 2010

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ABSTRACT. To date, several DNA viral infections have been reported in psittacine birds. Psittacine beak and feather disease (PBFD) is characterized by symmetric feather dystrophy and loss and development of beak deformities. PBFD is caused by beak and feather virus, which belongs to the Circoviridae, and is the most important infection in psittacine birds worldwide. Avian polyomavirus infection causes acute death, abdominal distention, and feather abnormalities. Pacheco's disease (PD), which is caused by psittacid herpesvirus type 1, is an acute lethal disease without a prodrome. Psittacine adenovirus infections are described as having a clinical progression similar to PD. The clinical changes in psittacine poxvirus-infected birds include serious ocular discharge, rhinitis, and conjunctivitis, followed by the appearance of ulcerations on the medial canthi of the eyes. Internal papillomatosis of parrots (IPP) is a tumor disease characterized by progressive development of papillomas in the oral and cloacal mucosa. IPP has been suggested to caused by papillomavirus or herpesvirus. However, information about these diseases is limited. Here we review the etiology, clinical features, pathology, epidemiology, and diagnosis of these DNA viruses.KEY WORDS: DNA virus, psittacine bird, review.

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“…Although described in 1929, PD was not recognized again until the early 1970s in flocks of captive parrots in Florida (40,41). Subsequently, this disease has been reported from multiple locations within the United States (5,6,15,20,26,27,30,35,39) and from around the world, in countries where Central and South American parrots have been imported (3,7,13,14,21,23,24,25).…”

mentioning

confidence: 99%

Detection and Heterogeneity of Herpesviruses Causing Pacheco's Disease in Parrots

Tomaszewski¹,

Wilson

Wigle

et al. 2001

J Clin Microbiol

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Pacheco's disease (PD) is a common, often fatal, disease of parrots. We cloned a virus isolate from a parrot that had characteristic lesions of PD. Three viral clones were partially sequenced, demonstrating that this virus was an alphaherpesvirus most closely related to the gallid herpesvirus 1. Five primer sets were developed from these sequences. The primer sets were used with PCR to screen tissues or tissue culture media suspected to contain viruses from 54 outbreaks of PD. The primer sets amplified DNA from all but one sample. Ten amplification patterns were detected, indicating that PD is caused by a genetically heterogeneous population of viruses. A single genetic variant (psittacid herpesvirus variant 1) amplified with all primer sets and was the most common virus variant (62.7%). A single primer set (23F) amplified DNA from all of the positive samples, suggesting that PCR could be used as a rapid postmortem assay for these viruses. PCR was found to be significantly more sensitive than tissue culture for the detection of psittacid herpesviruses.

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Mortality in psittacine birds resembling Pacheco's disease in Spain

Cited by 19 publications

References 9 publications

Haemorrhagic enteritis associated with herpesvirus in storks

Haemorrhagic enteritis associated with herpesvirus in storks

A Review of DNA Viral Infections in Psittacine Birds

Detection and Heterogeneity of Herpesviruses Causing Pacheco's Disease in Parrots

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