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Avian reovirus: a furious and fast evolving pathogen
Sofia Egana-Labrin1, Andrew J Broadbent1
1Department of Animal and Avian Sciences, University of Maryland, College Park, MD, 20742, USA.
Journal of Medical Microbiology
|October 6, 2023
Summary
Avian reoviruses (ARVs) significantly impact the poultry industry, causing diseases like tenosynovitis. Ongoing evolution necessitates improved vaccines and surveillance to control these economically damaging viruses.
Area of Science:
- Veterinary Virology
- Poultry Health
- Disease Economics
Background:
- Avian reoviruses (ARVs) pose a significant economic threat to the poultry sector globally.
- Pathogenic ARV strains are associated with tenosynovitis/arthritis, a major clinical concern.
- Increased ARV cases in the US and identification of seven genotypic clusters highlight evolving viral strains.
Purpose of the Study:
- To summarize the impact and current control strategies for avian reoviruses.
- To underscore the need for enhanced surveillance and vaccine development.
Main Methods:
- Review of existing literature on avian reoviruses.
- Analysis of epidemiological trends and genotypic diversity.
- Evaluation of current control measures, including biosecurity and vaccination.
Main Results:
- Avian reoviruses cause substantial economic losses in poultry.
- Tenosynovitis/arthritis is the most significant clinical manifestation.
- Seven distinct genotypic clusters of ARVs have been identified due to viral evolution.
Conclusions:
- Strict biosecurity and vaccination are key control strategies.
- Further research into pathogenesis and development of novel vaccines are crucial.
- Continuous molecular and serologic surveillance is essential for effective ARV management.
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