Detection of avian reoviruses in wild birds in Poland

Styś-Fijoł, Natalia; Kozdrun, W.; Czekaj, Hanna

doi:10.1515/jvetres-2017-0033

Cited by 12 publications

(14 citation statements)

References 21 publications

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“…Avian reovirus (ARV) infections of chickens are major causes of economic problems for commercial poultry producers throughout the world [2]. Economic losses caused by ARV infections in chickens are often the result of poor performances such as extenuated weight gains, high feed conversion ratio, decreased egg production, reduced marketability of affected birds, and also increased diseases susceptibility [3].…”

Section: Introductionmentioning

confidence: 99%

Serological detection of avian reovirus in different poultry flocks of Gazipur and Mymensingh districts of Bangladesh

et al. 2019

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Background and Aim: Avian reovirus (ARV) is a constraint to poultry industry in Bangladesh as a cause of several diseases in chickens, especially in broiler. However, the actual status of the viral infection is not known because the large-scale study is not conducted in this country. Therefore, this study aimed to check the presence and distribution of ARV-specific antibody in respect to area, types of chickens (broiler breeder, broiler, and layer), vaccination status, and age of chickens in Gazipur and Mymensingh districts of Bangladesh. Materials and Methods: A total of 276 chickens' blood samples were collected from two well-organized broiler breeder stock, seven broiler farms, and five layer farms located at two districts, namely Gazipur and Mymensingh of Bangladesh. Blood samples were collected from wing vein of the apparently healthy chickens using 3 ml of syringe and serum was harvested by keeping the syringe at room temperature in slanting position. The sera were transferred to the laboratory by maintaining the cool chain and further processing was performed by indirect enzyme-linked immunosorbent assay using ARV antibody test kit. Results: The results of serological test revealed that an average of 39.5% seropositive against ARV was recorded in chickens of Gazipur and Mymensingh districts. Among these, chickens of Gazipur district had the highest seropositivity of 50.5% than Mymensingh (30.7%). With respect to vaccination status, the seropositivity of vaccinated chickens in both areas was 100% and non-vaccinated chickens was 50.5% in Gazipur and 30.7% in Mymensingh district, respectively. However, regarding age groups, the seropositivity was higher in the age of 4-6 weeks (64.5%). Conclusion: The present serological findings showed a higher prevalence of ARV-specific antibodies in broiler birds. It indicates that the poultry industries of Bangladesh are contaminated with ARV which may naturally be transmitted to chickens either vertically or horizontally.

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Section: Introductionmentioning

confidence: 99%

Serological detection of avian reovirus in different poultry flocks of Gazipur and Mymensingh districts of Bangladesh

et al. 2019

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“…In studies that reported high prevalence of ARV infection, specimens come from birds with clinical signs of infection, such as arthritis, tenosynovitis, enteric syndromes, in addition to more severe cases when central nervous system is compromised and death 24,55 . In USA, Lu et al 7 investigated ARV from tendons, synovial tissues and viscera from chickens, turkeys, partridges, quails and pheasants, that presented clinical signs, and all of 311 specimens analyzed on that study were positive for ARV.…”

Section: Discussionmentioning

confidence: 99%

Occurrence of Avian Reovirus and Picobirnavirus in Wild Birds in an Environmental Protection Area in the Amazon Biome, Pará, Brazil

Pereira

Souto

Guerra

et al. 2022

Preprint

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Wild birds have great prominence on transmission of diseases to humans, mainly due to their ease of access to human population, raising concerns about the potential impact of that proximity in context of the One Health. Studies referring to circulation of avian reovirus (ARV) and picobirnavirus (PBV) in wild birds are limited, in addition to reinforcing the development of researches that describe the prevalence, characterize the variants and evaluate the potential impact of these infections on the wild ecosystem and public health. The present study reports the occurrence of ARV and PBV in wild birds collected from an environmental protection area in the Amazon biome. RT-PCR analysis showed ARV infection prevalence in 0.6% (1/155) and PBV infection in 1.29% (2/155) on the samples. ARV strain isolated in this study demonstrated more phylogenetically related to other ARVs previously circulating in poultry in the same region. The two PBV strains obtained belong to genogroup I, and showed phylogenetically related to other PBV isolated from different animal species in different geographic regions. This study is a pioneer in the detection of ARV in wild birds in Brazil and presents a report of the first occurrence of PBV in wild birds of Guira guira specie. Additional studies in wild birds are required to increase the epidemiology, origin, evolution and emergence of new viruses that may provoke problems in the context of One Health.

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“…The σC sequence is used as a genetic marker to characterize and classify ARV isolates into different six or seven genotypic clusters (8,9). The σNS protein encoded by the segment S4, has been reported for its single-stranded RNA (ssRNA) binding activity, and it is divided into diverse lineages that conserved by host origin of ARVs (10,11); as well it has been used for diagnostic analysis (10,12).…”

Section: Introductionmentioning

confidence: 99%

Isolation and Genomic Characterization of Avian Reovirus From Wild Birds in South Korea

et al. 2022

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Avian reoviruses (ARVs) cause severe arthritis, tenosynovitis, pericarditis, and depressed growth in chickens, and these conditions have become increasingly frequent in recent years. Studies on the role of wild birds in the epidemiology of ARVs are insufficient. This study provides information about currently circulating ARVs in wild birds by gene detection using diagnostic RT-PCR, virus isolation, and genomic characterization. In this study, we isolated and identified 10 ARV isolates from 7,390 wild birds' fecal samples, including migratory bird species (bean goose, Eurasian teal, Indian spot-billed duck, and mallard duck) from 2015 to 2019 in South Korea. On comparing the amino acid sequences of the σC-encoding gene, most isolates, except A18-13, shared higher sequence similarity with the commercial vaccine isolate S1133 and Chinese isolates. However, the A18-13 isolate is similar to live attenuated vaccine av-S1133 and vaccine break isolates (SD09-1, LN09-1, and GX110116). For the p10- and p17-encoding genes, all isolates have identical fusion associated small transmembrane (FAST) protein and nuclear localization signal (SNL) motif to chicken-origin ARVs. Phylogenetic analysis of the amino acid sequences of the σC-encoding gene revealed that all isolates were belonged to genotypic cluster I. For the p10- and p17-encoding genes, the nucleotide sequences of all isolates indicated close relationship with commercial vaccine isolate S1133 and Chinese isolates. For the σNS-encoding gene, the nucleotide sequences of all isolates indicated close relationship with the Californian chicken-origin isolate K1600657 and belonged to chicken-origin ARV cluster. Our data indicates that wild birds ARVs were derived from the chicken farms. This finding suggests that wild birds serve as natural carriers of such viruses for domestic poultry.

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Detection of avian reoviruses in wild birds in Poland

Cited by 12 publications

References 21 publications

Serological detection of avian reovirus in different poultry flocks of Gazipur and Mymensingh districts of Bangladesh

Serological detection of avian reovirus in different poultry flocks of Gazipur and Mymensingh districts of Bangladesh

Occurrence of Avian Reovirus and Picobirnavirus in Wild Birds in an Environmental Protection Area in the Amazon Biome, Pará, Brazil

Isolation and Genomic Characterization of Avian Reovirus From Wild Birds in South Korea

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