Psittacid Herpesvirus 3 Infection in the Eclectus Parrot (<i>Eclectus roratus</i>) in Australia

Gabor, Melinda; Gabor, Les J.; Peacock, L.; Srivastava, Mukesh; Rosenwax, AC; Phalen, David N.

doi:10.1177/0300985813490753

Cited by 15 publications

(23 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Most aviculturists have limited resources and it would be unlikely that they could provide housing and management practices that would prevent disease transmission from their own birds to the orange-bellied parrots. This is of great concern in that Avian Bornavirus-2 and 4 and Psittacid Herpesvirus-3, pathogens that have had major impacts on avicultural species globally, are known to be present in some Australian avicultural collections [45, 46]. Also, new viruses are still being discovered in Australian aviculture collections and the epizootiology of these viruses and means of testing for them are largely unknown [24, 47].…”

Section: Discussionmentioning

confidence: 99%

Psittacid Adenovirus-2 infection in the critically endangered orange-bellied parrot (Neophema chrysogastor): A key threatening process or an example of a host-adapted virus?

Yang

McLelland

et al. 2019

PLoS ONE

View full text Add to dashboard Cite

Psittacid Adenovirus-2 (PsAdv-2) was identified in captive orange-bellied parrots ( Neophema chrysogastor ) during a multifactorial cluster of mortalities at the Adelaide Zoo, South Australia, and an outbreak of Pseudomonas aeruginosa septicaemia at the Tasmanian Department of Primary Industries, Parks, Water and Environment captive breeding facility, Taroona, Tasmania. This was the first time that an adenovirus had been identified in orange-bellied parrots and is the first report of PsAdv-2 in Australia. To investigate the status of PsAdv-2 in the captive population of orange-bellied parrots, 102 healthy birds from five breeding facilities were examined for the presence of PsAdv-2 DNA in droppings and/or cloacal swabs using a nested polymerase chain reaction assay. Additionally, eight birds released to the wild for the 2016 breeding season were similarly tested when they were recaptured prior to migration to be held in captivity for the winter. PsAdv-2 was identified in all breeding facilities as well as the birds recaptured from the wild. Prevalence of shedding ranged from 29.7 to 76.5%, demonstrating that PsAdv-2 is endemic in the captive population of orange-bellied parrots and that wild parrots may have been exposed to the virus. PsAdv-2 DNA was detected in both cloacal swabs and faeces of the orange-bellied parrots, but testing both samples from the same birds suggested that testing faeces would be more sensitive than cloacal swabs. PsAdv-2 was not found in other psittacine species housed in nearby aviaries at the Adelaide Zoo. The source of the infection in the orange-bellied parrots remains undetermined. In this study, PsAdv-2 prevalence of shedding was higher in adult birds as compared to birds less than one year old. Preliminary data also suggested a correlation between adenovirus shedding prevalence within the breeding collection and chick survival.

show abstract

Section: Discussionmentioning

confidence: 99%

Psittacid Adenovirus-2 infection in the critically endangered orange-bellied parrot (Neophema chrysogastor): A key threatening process or an example of a host-adapted virus?

Yang

McLelland

et al. 2019

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…Herpesviruses are important pathogens associated with several diseases in avian species, including infectious laryngotracheitis and Marek disease in domestic poultry 2 and Pacheco disease in psittacine birds. 9 To date, 3 herpesviruses have been identified among the birds of the Psittacidae family: psittacid herpesvirus 1, 2, and 3 (PsHV-1, -2, and -3) 6,8 of which only PsHV-1 ( Psittacid alphaherpesvirus 1 ) has been officially recognized as a viral species.…”

mentioning

confidence: 99%

“…6 The bronchopneumonia and necrotizing peribronchitis observed in our cases were associated with the presence of syncytial cells, most of which contained intranuclear eosinophilic viral inclusion bodies, which are the characteristic of many herpesviral infections. 2…”

mentioning

confidence: 99%

See 1 more Smart Citation

Psittacid herpesvirus 3 infection in rose-ringed parakeets in southern Brazil

et al. 2020

View full text Add to dashboard Cite

We diagnosed disease caused by psittacid herpesvirus 3 (PsHV-3), a novel psittacid pathogen, in rose-ringed parakeets ( Psittacula krameri) housed in an exotic psittacine breeding colony in southern Brazil. The disease affected several adult birds. Clinical signs included apathy, tachypnea, and wheezing. Four birds were autopsied, and sections of lungs and liver were examined histologically and by electron microscopy (EM), revealing pulmonary congestion, bronchopneumonia, or multifocal necrosis of tertiary bronchi, with syncytial cells and eosinophilic intranuclear inclusion bodies. Viral particles morphologically compatible with herpesviruses were observed by EM in lung sections. PCR with pan-herpesvirus primers performed on total DNA extracted from paraffinized tissue resulted in a 278-bp product. Sequencing of the amplicon revealed 93% nucleotide identity with a PsHV-3 sequence available in GenBank. Phylogenetic analysis grouped the obtained sequence with the only PsHV-3 DNA polymerase gene sequence available (GenBank accession JX028240) and separated the sequence from psittacid herpesviruses 1 and 2. The clinical, pathologic, and molecular findings support the association of PsHV-3 with pneumonia found in these rose-ringed parakeets in southern Brazil.

show abstract

“…Recent discoveries of viral pathogenesis research report new disease geographic locations (psittacine herpesvirus 3 in Australia 2 ), as well as dissemination (highly pathogenic avian influenza virus colonization of hen reproductive tracts 8 ). This issue of Veterinary Pathology features a report on the dynamics of the latter.…”

mentioning

confidence: 99%

Obesity: Bring on the Jiggle?

2013

Vet Pathol

View full text Add to dashboard Cite

The July issue of Veterinary Pathology brings us a timely review on ''Models and Strategies in the Development of Antiobesity Drugs'' by Agahi and Murphy. 1 Drugs for obesity have been the holy grail for some time. Developing these has proved elusive, possibly because they target functions that are fundamentally integrated with most aspects of physiology. It is established that obesity increases the risk of developing diabetes, cardiovascular diseases, cancer, and other chronic diseases and leads to higher mortality. However, a recent comment in Science 2 questions the relationship between the widely used metric for obesity, body mass index (BMI) and mortality. In 1 meta-analysis, grade 1 obesity (BMI 30-34.9) was not associated with higher mortality, and the overweight condition (BMI 25-29.9) accompanied significantly reduced mortality. 3 Mortality appears to be more closely related to the metabolic syndrome associated with excess visceral fat rather than peripheral stores, which may in fact be protective. The optimal weight that is predictive of mortality is likely to be dependent on age, sex, genetics, cardiometabolic fitness, preexisting diseases, and other factors. In addition, a new index, the body shape index (ABSI), which quantifies abdominal adiposity relative to BMI and height, is thought to be a better predictor of mortality than BMI. 4

show abstract

Psittacid Herpesvirus 3 Infection in the Eclectus Parrot (Eclectus roratus) in Australia

Cited by 15 publications

References 11 publications

Psittacid Adenovirus-2 infection in the critically endangered orange-bellied parrot (Neophema chrysogastor): A key threatening process or an example of a host-adapted virus?

Psittacid Adenovirus-2 infection in the critically endangered orange-bellied parrot (Neophema chrysogastor): A key threatening process or an example of a host-adapted virus?

Psittacid herpesvirus 3 infection in rose-ringed parakeets in southern Brazil

Obesity: Bring on the Jiggle?

Contact Info

Product

Resources

About