Avian reoviruses (ARVs) are pathogens that cause significant morbidity among commercial poultry. ARVs are prototypic representatives of non-enveloped viruses that can cause cell-cell fusion. They belong to the Reoviridae family, which contains many highly pathogenic viruses. ARVs are ubiquitous in commercial poultry and are frequently isolated from the gastrointestinal and respiratory tracts of chickens with acute infections. The virus causes a range of disease states in chicken, including viral arthritis/tenosynovitis, gastroenteritis, hepatitis, myocarditis, "pale bird syndrome," runting-stunting syndrome, and respiratory illness. This unit describes avian reovirus propagation, quantification, and storage.
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http://dx.doi.org/10.1002/9780471729259.mc15c02s14 | DOI Listing |
Avian Pathol
January 2025
College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China.
In the last decade, the emergence of variant strains of avian orthoreovirus (ARV) has caused an enormous economic impact on the poultry industry across China and other countries. This study aimed to evaluate the molecular evolution of the ARV lineages detected in Chinese commercial broiler farms. Firstly, ARV isolation and identification of commercial broiler arthritis cases from different provinces in China from 2016 to 2021 were conducted.
View Article and Find Full Text PDFViruses
December 2024
Southeast Poultry Research Laboratory, U.S. National Poultry Research Center, United States Department of Agriculture-Agricultural Research Service (USDA-ARS), Athens, GA 30605, USA.
Avian reoviruses (ARVs) represent a significant economic burden on the poultry industry due to their widespread prevalence and potential pathogenicity. These viruses, capable of infecting a diverse range of avian species, can lead to a variety of clinical manifestations, most notably tenosynovitis/arthritis. While many ARV strains are asymptomatic, pathogenic variants can cause severe inflammation and tissue damage in organs such as the tendons, heart, and liver.
View Article and Find Full Text PDFHigh mortality in bobwhite quail chicks () (35%-85%) was reported from a grower flock in Iowa during July and August of 2022. Two diagnostic submissions of dead, 3-day-old quail chicks were received. Postmortem examination revealed multifocal, pinpoint, pale tan foci in the liver of all birds.
View Article and Find Full Text PDFCan Vet J
December 2024
Diagnostic Services Unit, Faculty of Veterinary Medicine, University of Calgary, 11877 85th Street NW, Calgary, Alberta T3R 1J3 (Gupta, Zachar); Prairie Livestock Veterinarians, #1 4940 81st Street, Red Deer, Alberta T4P 3V3 (Bowling, Girard); Animal Health Laboratory, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1 (Ojkic).
Avian reoviruses (ARVs) are ubiquitous and play a role in diseases affecting various organs in chickens and turkeys. In recent years, tenosynovitis and lameness emerged as the most frequently reported clinical conditions. In this report, we describe a case of neurological disease associated with ARV infection in 4-week-old turkeys in Alberta.
View Article and Find Full Text PDFVet Microbiol
January 2025
College of Veterinary Medicine, Hebei Agricultural University, NO.2596 Lekai South Street, Baoding, Hebei 071000, China; Veterinary Biological Technology Innovation Centre of Hebei Province, Baoding, Hebei 071000, China. Electronic address:
The Novel Duck Reovirus (NDRV) infection poses a significant health risk to ducks, primarily attributed to the absence of efficacious preventive measures. This research aimed to investigate whether the administration of isolated Bacillus could protect antagonistic NDRV infection in a Cherry Valley duck model. Four indigenous Bacillus strains from the feces of healthy ducks demonstrated promising biosafety profiles.
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