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Sukmak M, Okamoto M, Ando T, Hagiwara K. Genetic stability of the open reading frame 2 (ORF2) of borna disease virus 1 (BoDV-1) distributed in cattle in Hokkaido. J Vet Med Sci 2021; 83:1526-1533. [PMID: 34393150 PMCID: PMC8569879 DOI: 10.1292/jvms.21-0155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Borna disease virus (BoDV) is a neurotropic virus that causes several infections in
humans and neurological diseases in a wide range of animals worldwide. BoDV-1 has been
molecularly and serologically detected in many domestic and wild animals in Japan;
however, the genetic diversity of this virus and the origin of its infection are not fully
understood. In this study, we investigated BoDV-1 infection and genetic diversity in
samples collected from animals in Hokkaido between 2006 and 2020. The analysis was
performed by focusing on the P region of BoDV-1 for virus detection. The presence of
BoDV-1 RNA was observed in samples of brain tissue and various organs derived from
persistently infected cattle. Moreover, after inoculation, BoDV-positive brains were
isolated from neonatal rats. The gene sequences of the P region of BoDV obtained from the
rat brain were in the same cluster as the P region of the virus isolated from the original
bovine. Thus, genetic variation in BoDV-1 was extremely low. The phylogenetic analysis
revealed that BoDV-1 isolates obtained in this study were part of the same cluster, which
suggested that BoDV-1 of the same cluster was widespread among animals in Hokkaido.
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Affiliation(s)
- Manakorn Sukmak
- Department of Farm Resources and Production Medicine, Faculty of Veterinary Medicine, Kasetseart University.,Kamphaengsaen Veterinary Diagnostic Center (KVDC), Faculty of Veterinary Medicine, Kasetseart University
| | | | - Tastuya Ando
- School of Veterinary Medicine, Rakuno Gakuen University
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Association of Borna disease virus with autism spectrum disorder in Turkish children. JOURNAL OF SURGERY AND MEDICINE 2020. [DOI: 10.28982/josam.748864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Pinto MC, Craveiro H, Johansson Wensman J, Carvalheira J, Berg M, Thompson G. Bornaviruses in naturally infected Psittacus erithacus in Portugal: insights of molecular epidemiology and ecology. Infect Ecol Epidemiol 2019; 9:1685632. [PMID: 31741722 PMCID: PMC6844444 DOI: 10.1080/20008686.2019.1685632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 09/01/2019] [Indexed: 10/30/2022] Open
Abstract
Background: The genus Orthobornavirus comprises non-segmented, negative-stranded RNA viruses able to infect humans, mammals, reptiles and various birds. Parrot bornavirus 1 to 8 (PaBV-1 to 8) causes neurological and/or gastrointestinal syndromes and death on psittacines. We aimed to identify and to produce epidemiologic knowledge about the etiologic agent associated with a death of two female Psittacus erithacus (grey parrot). Methods and Results: Both parrots were submitted for a complete standardised necropsy. Tissue samples were analysed by PCR. The findings in necropsy were compatible with bornavirus infection. Analysis revealed PaBV-4 related with genotypes detected in captive and in wild birds. The N and X proteins of PaBV-4 were more related to avian bornaviruses, while phosphoprotein was more related to variegated squirrel bornavirus 1 (VSBV-1). Within the P gene/phosphoprotein a highly conserved region between and within bornavirus species was found. Conclusions: Portugal is on the routes of the intensive world trade of psittacines. Broad screening studies are required to help understanding the role of wild birds in the emergence and spread of pathogenic bornaviruses. PaBV-4 phosphoprotein is closer to VSBV-1 associated with lethal encephalitis in humans than with some of the avian bornaviruses. The highly conserved P gene/phosphoprotein region is a good target for molecular diagnostics screenings.
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Affiliation(s)
- Marlene Cavaleiro Pinto
- Laboratory of Microbiology and Infectious Diseases, Department of Veterinary Clinics, Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal.,Research Center in Biodiversity and Genetic Resources, University of Porto, Vairão, Portugal
| | - Hélder Craveiro
- Department of exotic animals, Veterinary Hospital Baixo Vouga, Águeda, Portugal.,Department of Veterinary Medicine, Vasco da Gama University School, Coimbra, Portugal
| | - Jonas Johansson Wensman
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Júlio Carvalheira
- Department of Population Studies, Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal
| | - Mikael Berg
- Section of Virology, Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Gertrude Thompson
- Laboratory of Microbiology and Infectious Diseases, Department of Veterinary Clinics, Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal.,Research Center in Biodiversity and Genetic Resources, University of Porto, Vairão, Portugal
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