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Dunowska M, More GD, Biggs PJ, Cave NJ. Genomic analysis of canine pneumoviruses and canine respiratory coronavirus from New Zealand. N Z Vet J 2024; 72:191-200. [PMID: 38650102 DOI: 10.1080/00480169.2024.2339845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 03/18/2024] [Indexed: 04/25/2024]
Abstract
AIMS To isolate canine respiratory coronavirus (CRCoV) and canine pneumovirus (CnPnV) in cell culture and to compare partial genomic sequences of CRCoV and CnPnV from New Zealand with those from other countries. METHODS Oropharyngeal swab samples from dogs affected by canine infectious respiratory disease syndrome that were positive for CnPnV (n = 15) or CRCoV (n = 1) by virus-specific reverse transcriptase quantitative PCR (RT-qPCR) in a previous study comprised the starting material. Virus isolation was performed in HRT-18 cells for CRCoV and RAW 264.7 and Vero cells for CnPnV. The entire sequence of CnPnV G protein (1,266 nucleotides) and most (8,063/9,707 nucleotides) of the 3' region of CRCoV that codes for 10 structural and accessory proteins were amplified and sequenced. The sequences were analysed and compared with other sequences available in GenBank using standard molecular tools including phylogenetic analysis. RESULTS Virus isolation was unsuccessful for both CRCoV and CnPnV. Pneumovirus G protein was amplified from 3/15 (20%) samples that were positive for CnPnV RNA by RT-qPCR. Two of these (NZ-048 and NZ-049) were 100% identical to each other, and 90.9% identical to the third one (NZ-007). Based on phylogenetic analysis of the G protein gene, CnPnV NZ-048 and NZ-049 clustered with sequences from the USA, Thailand and Italy in group A, and CnPnV NZ-007 clustered with sequences from the USA in group B. The characteristics of the predicted genes (length, position) and their putative protein products (size, predicted structure, presence of N- and O-glycosylation sites) of the New Zealand CRCoV sequence were consistent with those reported previously, except for the region located between open reading frame (ORF)3 (coding for S protein) and ORF6 (coding for E protein). The New Zealand virus was predicted to encode 5.9 kDa, 27 kDa and 12.7 kDa proteins, which differed from the putative coding capacity of this region reported for CRCoV from other countries. CONCLUSIONS This report represents the first characterisation of partial genomic sequences of CRCoV and CnPnV from New Zealand. Our results suggest that the population of CnPnV circulating in New Zealand is not homogeneous, and that the viruses from two clades described overseas are also present here. Limited conclusions can be made based on only one CRCoV sequence, but the putative differences in the coding capacity of New Zealand CRCoV support the previously reported variability of this region. The reasons for such variability and its biological implications need to be further elucidated.
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Affiliation(s)
- M Dunowska
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - G D More
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - P J Biggs
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - N J Cave
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
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Park J, Kim HR, Lee EB, Lee SK, Kim WI, Lyoo YS, Park CK, Ku BK, Jeoung HY, Lee KK, Park SC. First Detection and Genetic Characterization of Swine Orthopneumovirus from Domestic Pig Farms in the Republic of Korea. Viruses 2023; 15:2371. [PMID: 38140612 PMCID: PMC10747143 DOI: 10.3390/v15122371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/23/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023] Open
Abstract
Novel swine orthopneumovirus (SOV) infections have been identified in pigs in the USA and some European countries but not in Asian countries, including South Korea, to date. The current study reports the first SOV infections in four domestic pig farms located in four provinces across South Korea. The detection rate of SOV in oral fluid samples using qRT-PCR was 4.4% (14/389), indicating the presence of the virus in pigs at commercial farms in Korea. Two complete genome sequences and one glycoprotein (G) gene sequence were obtained from SOV-positive samples. The complete genome analysis of KSOV-2201 and KSOV-2202 strains showed 98.2 and 95.4% homologies with a previously reported SOV, and the phylogenetic tree exhibited a high correlation with a previously reported SOV strain from the US and a canine pneumovirus (CPnV) strain from China. Based on the genetic analysis of the viral G gene, the murine pneumonia virus (MPV)-like orthopneumoviruses (MLOVs) were divided into two genogroups (G1 and G2). Seventeen CPnVs and two feline pneumoviruses were grouped into G1, while the Korean SOV strains identified in this study were grouped into G2 along with one SOV and two CPnVs. These results will contribute to expanding our understanding of the geographical distribution and genetic characteristics of the novel SOV in the global pig population.
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Affiliation(s)
- Jonghyun Park
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, Institute for Animal Biomedical Science, College of Veterinary Medicine, Kyungpook National University, 80 Daehak-ro, Daegu 41566, Republic of Korea; (J.P.); (E.-B.L.)
- DIVA Bio Incorporation, Daegu 41519, Republic of Korea;
- Institute for Veterinary Biomedical Science, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; (S.-K.L.); (C.-K.P.)
| | - Hye-Ryung Kim
- DIVA Bio Incorporation, Daegu 41519, Republic of Korea;
- Institute for Veterinary Biomedical Science, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; (S.-K.L.); (C.-K.P.)
| | - Eon-Bee Lee
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, Institute for Animal Biomedical Science, College of Veterinary Medicine, Kyungpook National University, 80 Daehak-ro, Daegu 41566, Republic of Korea; (J.P.); (E.-B.L.)
- Institute for Veterinary Biomedical Science, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; (S.-K.L.); (C.-K.P.)
| | - Sang-Kwon Lee
- Institute for Veterinary Biomedical Science, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; (S.-K.L.); (C.-K.P.)
| | - Won-Il Kim
- College of Veterinary Medicine, Jeonbuk National University, 79 Gobong-ro, Iksan 54596, Republic of Korea;
| | - Young S. Lyoo
- College of Veterinary Medicine, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea;
| | - Choi-Kyu Park
- Institute for Veterinary Biomedical Science, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; (S.-K.L.); (C.-K.P.)
| | - Bok Kyung Ku
- Animal and Plant Quarantine Agency, Gimcheon 39660, Republic of Korea; (B.K.K.); (H.-Y.J.)
| | - Hye-Young Jeoung
- Animal and Plant Quarantine Agency, Gimcheon 39660, Republic of Korea; (B.K.K.); (H.-Y.J.)
| | - Kyoung-Ki Lee
- Animal and Plant Quarantine Agency, Gimcheon 39660, Republic of Korea; (B.K.K.); (H.-Y.J.)
| | - Seung-Chun Park
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, Institute for Animal Biomedical Science, College of Veterinary Medicine, Kyungpook National University, 80 Daehak-ro, Daegu 41566, Republic of Korea; (J.P.); (E.-B.L.)
- Institute for Veterinary Biomedical Science, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; (S.-K.L.); (C.-K.P.)
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Song X, Li Y, Huang J, Cao H, Zhou Q, Sha X, Zhang B. An emerging orthopneumovirus detected from dogs with canine infectious respiratory disease in China. Transbound Emerg Dis 2021; 68:3217-3221. [PMID: 34405559 DOI: 10.1111/tbed.14291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 08/15/2021] [Accepted: 08/15/2021] [Indexed: 11/29/2022]
Abstract
Canine infectious respiratory disease (CIRD) is a major cause of morbidity in dogs and is associated with several viral pathogens. The viral diversity associated with CIRD was investigated by analyzing the viral communities from nine CIRD-affected dogs using metagenomics. The results identified 10 mammalian viruses, including canine parvovirus, canid alphaherpesvirus 1, canine kobuvirus, Felis catus papillomavirus 3, canine respiratory coronavirus, canine adenovirus 2, Canis familiaris polyomavirus (DogPyV), canine coronavirus, human papillomavirus and canine pneumovirus (CPnV). Interestingly, CPnV and DogPyV were first discovered in China. Further investigation in 107 samples in China using specific PCR found only two CPnV positive strains in 51 CIRD samples and none in 56 healthy samples. Furthermore, a complete nucleotide sequence of CPnV strain SMU-2020-CB19 and a partial nucleotide sequence of strain SMU-2020-CB14 were obtained. Sequence comparisons and phylogenetic analysis showed that both novel CPnV strains were a close match to the detected swine orthopneumovirus strain in USA, but distantly related to other CPnV strains. Here, the first discovery and characterization of orthopneumovirus in dogs with CIRD in China were reported, highlighting the need for further research on pathogenicity and transmission in China.
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Affiliation(s)
- Xin Song
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu, China
| | - Yan Li
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu, China.,Key Laboratory of Ministry of Education and Sichuan Province for Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Chengdu, China
| | - Jian Huang
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu, China.,Key Laboratory of Ministry of Education and Sichuan Province for Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Chengdu, China
| | - Hui Cao
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu, China
| | - Qun Zhou
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu, China
| | - Xue Sha
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu, China
| | - Bin Zhang
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu, China.,Key Laboratory of Ministry of Education and Sichuan Province for Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Chengdu, China
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Phylogenetic evidence of a novel lineage of canine pneumovirus and a naturally recombinant strain isolated from dogs with respiratory illness in Thailand. BMC Vet Res 2019; 15:300. [PMID: 31426794 PMCID: PMC6700830 DOI: 10.1186/s12917-019-2035-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 07/31/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Canine pneumovirus (CPV) is a pathogen that causes respiratory disease in dogs, and recent outbreaks in shelters in America and Europe have been reported. However, based on published data and documents, the identification of CPV and its variant in clinically symptomatic individual dogs in Thailand through Asia is limited. Therefore, the aims of this study were to determine the emergence of CPV and to consequently establish the genetic characterization and phylogenetic analysis of the CPV strains from 209 dogs showing respiratory distress in Thailand. RESULTS This study identified and described the full-length CPV genome from three strains, designated herein as CPV_CP13 TH/2015, CPV_CP82 TH/2016 and CPV_SR1 TH/2016, that were isolated from six dogs out of 209 dogs (2.9%) with respiratory illness in Thailand. Phylogenetic analysis suggested that these three Thai CPV strains (CPV TH strains) belong to the CPV subgroup A and form a novel lineage; proposed as the Asian prototype. Specific mutations in the deduced amino acids of these CPV TH strains were found in the G/glycoprotein sequence, suggesting potential substitution sites for subtype classification. Results of intragenic recombination analysis revealed that CPV_CP82 TH/2016 is a recombinant strain, where the recombination event occurred in the L gene with the Italian prototype CPV Bari/100-12 as the putative major parent. Selective pressure analysis demonstrated that the majority of the nucleotides in the G/glycoprotein were under purifying selection with evidence of positive selection sites. CONCLUSIONS This collective information on the CPV TH strains is the first evidence of CPV emergence with genetic characterization in Thailand and as first report in Asia, where homologous recombination acts as a potential force driving the genetic diversity and shaping the evolution of canine pneumovirus.
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Mitchell JA, Cardwell JM, Leach H, Walker CA, Le Poder S, Decaro N, Rusvai M, Egberink H, Rottier P, Fernandez M, Fragkiadaki E, Shields S, Brownlie J. European surveillance of emerging pathogens associated with canine infectious respiratory disease. Vet Microbiol 2017; 212:31-38. [PMID: 29173585 PMCID: PMC7117498 DOI: 10.1016/j.vetmic.2017.10.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 10/18/2017] [Accepted: 10/25/2017] [Indexed: 12/31/2022]
Abstract
The largest study of its kind in the field to date, including high-risk kennelled dogs, and for the first time, pet dogs and dogs from other cohorts. A clearly identifiable link between disease and the emerging pathogens: canine respiratory coronavirus and canine pneumovirus. Provides, substantial evidence of CIRD and the circulation of the novel pathogens studied in pet dogs, and dogs from other cohorts. Demonstrates the role and limitations of current vaccine strategies in managing CIRD outbreaks, and the need for including emerging pathogens.
Canine infectious respiratory disease (CIRD) is a major cause of morbidity in dogs worldwide, and is associated with a number of new and emerging pathogens. In a large multi-centre European study the prevalences of four key emerging CIRD pathogens; canine respiratory coronavirus (CRCoV), canine pneumovirus (CnPnV), influenza A, and Mycoplasma cynos (M. cynos); were estimated, and risk factors for exposure, infection and clinical disease were investigated. CIRD affected 66% (381/572) of the dogs studied, including both pet and kennelled dogs. Disease occurrence and severity were significantly reduced in dogs vaccinated against classic CIRD agents, canine distemper virus (CDV), canine adenovirus 2 (CAV-2) and canine parainfluenza virus (CPIV), but substantial proportions (65.7%; 201/306) of vaccinated dogs remained affected. CRCoV and CnPnV were highly prevalent across the different dog populations, with overall seropositivity and detection rates of 47% and 7.7% for CRCoV, and 41.7% and 23.4% for CnPnV, respectively, and their presence was associated with increased occurrence and severity of clinical disease. Antibodies to CRCoV had a protective effect against CRCoV infection and more severe clinical signs of CIRD but antibodies to CnPnV did not. Involvement of M. cynos and influenza A in CIRD was less apparent. Despite 45% of dogs being seropositive for M. cynos, only 0.9% were PCR positive for M. cynos. Only 2.7% of dogs were seropositive for Influenza A, and none were positive by PCR.
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Affiliation(s)
- Judy A Mitchell
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, UK.
| | - Jacqueline M Cardwell
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, UK.
| | - Heather Leach
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, UK.
| | - Caray A Walker
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, UK.
| | - Sophie Le Poder
- ENVA, University of Paris-Est, UMR 1161 Virologie, 94704 Maisons-Alfort, France; INRA, UMR 1161 Virologie, 94704 Maisons-Alfort, France; ANSES, Laboratoire de santé animale, UMR 1161 Virologie, 94704 Maisons Alfort, France.
| | - Nicola Decaro
- University of Bari, Department of Veterinary Medicine, Strada Provinciale per Casamassima Km 3, 70010 Valenzano (Bari), Italy.
| | - Miklos Rusvai
- University of Veterinary Medicine, Department of Pathology, Istvan u. 2, 1078 Budapest, Hungary.
| | - Herman Egberink
- University of Utrecht, Department of Infectious Diseases and Immunology, Yalelaan 1, 3584 CL, Utrecht, Netherlands.
| | - Peter Rottier
- University of Utrecht, Department of Infectious Diseases and Immunology, Yalelaan 1, 3584 CL, Utrecht, Netherlands.
| | - Mireia Fernandez
- Autonomous University of Barcelona, Hospital Clinic Veterinari, Universitat Automa de Barcelona, 08193 Bellaterra, Cerdanyola del Valles, Spain.
| | - Eirini Fragkiadaki
- Agricultural University of Athens, Faculty of Animal Science and Aquaculture, 75 Iera Odos str., 118 55, Athens, Greece.
| | - Shelly Shields
- Zoetis, Global Biologics Research-Companion Animals/Equine, 333 Portage Street, Kalamazoo, MI 49007, USA.
| | - Joe Brownlie
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, UK.
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Hause BM, Padmanabhan A, Pedersen K, Gidlewski T. Feral swine virome is dominated by single-stranded DNA viruses and contains a novel Orthopneumovirus which circulates both in feral and domestic swine. J Gen Virol 2016; 97:2090-2095. [PMID: 27417702 DOI: 10.1099/jgv.0.000554] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Feral swine are known reservoirs for various pathogens that can adversely affect domestic animals. To assess the viral ecology of feral swine in the USA, metagenomic sequencing was performed on 100 pooled nasal swabs. The virome was dominated by small, ssDNA viruses belonging to the families Circoviridae, Anelloviridae and Parvovirinae. Only four RNA viruses were identified: porcine kobuvirus, porcine sapelovirus, atypical porcine pestivirus and a novel Orthopneumovirus, provisionally named swine orthopneumovirus (SOV). SOV shared ~90 % nucleotide identity to murine pneumonia virus (MPV) and canine pneumovirus. A modified, commercially available ELISA for MPV found that approximately 30 % of both feral and domestic swine sera were positive for antibodies cross-reactive with MPV. Quantitative reverse transcription-PCR identified two (2 %) and four (5.0 %) positive nasal swab pools from feral and domestic swine, respectively, confirming that SOV circulates in both herds.
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Affiliation(s)
- Ben M Hause
- Department of Diagnostic Medicine and Pathobiology, Kansas State University, Manhattan, Kansas 66549, USA.,Kansas State Veterinary Diagnostic Laboratory, Kansas State University, Manhattan, Kansas 66549, USA
| | - Aiswaria Padmanabhan
- Kansas State Veterinary Diagnostic Laboratory, Kansas State University, Manhattan, Kansas 66549, USA
| | - Kerri Pedersen
- United States Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, Fort Collins, Colorado 80521, USA
| | - Thomas Gidlewski
- United States Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, Fort Collins, Colorado 80521, USA
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Percopo CM, Dyer KD, Karpe KA, Domachowske JB, Rosenberg HF. Eosinophils and respiratory virus infection: a dual-standard curve qRT-PCR-based method for determining virus recovery from mouse lung tissue. Methods Mol Biol 2015; 1178:257-66. [PMID: 24986623 DOI: 10.1007/978-1-4939-1016-8_22] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Several lines of investigation have indicated a role for eosinophilic leukocytes in limiting virus infectivity and promoting virion clearance. We have established a respiratory virus infection model with pneumonia virus of mice (PVM; family Paramyxoviridae), a natural mouse pathogen that replicates the more severe forms of human disease elicited by the phylogenetically related respiratory syncytial virus (RSV). In this chapter, we present a rapid and highly reproducible dual-standard curve qRT-PCR based method for quantitative detection of PVM replication in mouse lung tissue. We have used this assay to evaluate eosinophil-mediated antiviral host defense in mouse models of cytokine and antigen-driven eosinophilic inflammation.
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Affiliation(s)
- Caroline M Percopo
- Inflammation Immunobiology Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 9000 Rockville Pike, 20892, Bethesda, MD, USA
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Madarame H, Ogihara K, Kimura M, Nagai M, Omatsu T, Ochiai H, Mizutani T. Detection of a pneumonia virus of mice (PVM) in an African hedgehog (Atelerix arbiventris) with suspected wobbly hedgehog syndrome (WHS). Vet Microbiol 2014; 173:136-40. [PMID: 25129384 DOI: 10.1016/j.vetmic.2014.07.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 07/04/2014] [Accepted: 07/13/2014] [Indexed: 11/26/2022]
Abstract
A pneumonia virus of mice (PVM) from an African hedgehog (Atelerix arbiventris) with suspected wobbly hedgehog syndrome (WHS) was detected and genetically characterized. The affected hedgehog had a nonsuppurative encephalitis with vacuolization of the white matter, and the brain samples yielded RNA reads highly homogeneous to PVM strain 15 (96.5% of full genomic sequence homology by analysis of next generation sequencing). PVM antigen was also detected in the brain and the lungs immunohistochemically. A PVM was strongly suggested as a causative agent of encephalitis of a hedgehog with suspected WHS. This is a first report of PVM infection in hedgehogs.
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Affiliation(s)
- Hiroo Madarame
- Laboratory of Small Animal Clinics, Veterinary Teaching Hospital, Azabu University, 1-17-71, Fuchinobe, Chuo, Sagamihara 252-5201, Kanagawa, Japan.
| | - Kikumi Ogihara
- Laboratory of Pathology, Department of Environmental Hygine, Azabu University, 1-17-71, Fuchinobe, Chuo, Sagamihara 252-5201, Kanagawa, Japan
| | - Moe Kimura
- Laboratory of Small Animal Clinics, Veterinary Teaching Hospital, Azabu University, 1-17-71, Fuchinobe, Chuo, Sagamihara 252-5201, Kanagawa, Japan
| | - Makoto Nagai
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu 183-8509, Tokyo, Japan
| | - Tsutomu Omatsu
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu 183-8509, Tokyo, Japan
| | - Hideharu Ochiai
- Research Institute of Biosciences, Azabu University, 1-17-71, Fuchinobe, Chuo, Sagamihara 252-5201, Kanagawa, Japan
| | - Tetsyuya Mizutani
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu 183-8509, Tokyo, Japan
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Decaro N, Pinto P, Mari V, Elia G, Larocca V, Camero M, Terio V, Losurdo M, Martella V, Buonavoglia C. Full-genome analysis of a canine pneumovirus causing acute respiratory disease in dogs, Italy. PLoS One 2014; 9:e85220. [PMID: 24400129 PMCID: PMC3882280 DOI: 10.1371/journal.pone.0085220] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Accepted: 11/29/2013] [Indexed: 12/30/2022] Open
Abstract
An outbreak of canine infectious respiratory disease (CIRD) associated to canine pneumovirus (CnPnV) infection is reported. The outbreak occurred in a shelter of the Apulia region and involved 37 out of 350 dogs that displayed cough and/or nasal discharge with no evidence of fever. The full-genomic characterisation showed that the causative agent (strain Bari/100-12) was closely related to CnPnVs that have been recently isolated in the USA, as well as to murine pneumovirus, which is responsible for respiratory disease in mice. The present study represents a useful contribution to the knowledge of the pathogenic potential of CnPnV and its association with CIRD in dogs. Further studies will elucidate the pathogenicity and epidemiology of this novel pneumovirus, thus addressing the eventual need for specific vaccines.
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Affiliation(s)
- Nicola Decaro
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy
- * E-mail:
| | | | - Viviana Mari
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy
| | - Gabriella Elia
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy
| | - Vittorio Larocca
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy
| | - Michele Camero
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy
| | - Valentina Terio
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy
| | - Michele Losurdo
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy
| | - Vito Martella
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy
| | - Canio Buonavoglia
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy
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Abstract
Eosinophils are recruited to the airways as a prominent feature of the asthmatic inflammatory response where they are broadly perceived as promoting pathophysiology. Respiratory virus infections exacerbate established asthma; however, the role of eosinophils and the nature of their interactions with respiratory viruses remain uncertain. To explore these questions, we established acute infection with the rodent pneumovirus, pneumonia virus of mice (PVM), in 3 distinct mouse models of Th2 cytokine-driven asthmatic inflammation. We found that eosinophils recruited to the airways of otherwise naïve mice in response to Aspergillus fumigatus, but not ovalbumin sensitization and challenge, are activated by and degranulate specifically in response to PVM infection. Furthermore, we demonstrate that activated eosinophils from both Aspergillus antigen and cytokine-driven asthma models are profoundly antiviral and promote survival in response to an otherwise lethal PVM infection. Thus, although activated eosinophils within a Th2-polarized inflammatory response may have pathophysiologic features, they are also efficient and effective mediators of antiviral host defense.
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Mitchell JA, Cardwell JM, Renshaw RW, Dubovi EJ, Brownlie J. Detection of canine pneumovirus in dogs with canine infectious respiratory disease. J Clin Microbiol 2013; 51:4112-9. [PMID: 24088858 PMCID: PMC3838075 DOI: 10.1128/jcm.02312-13] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Accepted: 09/27/2013] [Indexed: 01/10/2023] Open
Abstract
Canine pneumovirus (CnPnV) was recently identified during a retrospective survey of kenneled dogs in the United States. In this study, archived samples from pet and kenneled dogs in the United Kingdom were screened for CnPnV to explore the relationship between exposure to CnPnV and the development of canine infectious respiratory disease (CIRD). Within the pet dog population, CnPnV-seropositive dogs were detected throughout the United Kingdom and Republic of Ireland, with an overall estimated seroprevalence of 50% (n = 314/625 dogs). In the kennel population, there was a significant increase in seroprevalence, from 26% (n = 56/215 dogs) on the day of entry to 93.5% (n = 201/215 dogs) after 21 days (P <0001). Dogs that were seronegative on entry but seroconverted while in the kennel were 4 times more likely to develop severe respiratory disease than those that did not seroconvert (P < 0.001), and dogs with preexisting antibodies to CnPnV on the day of entry were significantly less likely to develop respiratory disease than immunologically naive dogs (P < 0.001). CnPnV was detected in the tracheal tissues of 29/205 kenneled dogs. Detection was most frequent in dogs with mild to moderate respiratory signs and histopathological changes and in dogs housed for 8 to 14 days, which coincided with a significant increase in the risk of developing respiratory disease compared to the risk of those housed 1 to 7 days (P < 0.001). These findings demonstrate that CnPnV is present in the United Kingdom dog population; there is a strong association between exposure to CnPnV and CIRD in the kennel studied and a potential benefit in vaccinating against CnPnV as part of a wider disease prevention strategy.
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Affiliation(s)
- Judy A. Mitchell
- Department of Pathology and Pathogen Biology, The Royal Veterinary College, North Mymms, Hatfield, Hertfordshire, United Kingdom
| | - Jacqueline M. Cardwell
- Department of Production and Population Health, The Royal Veterinary College, North Mymms, Hatfield, Hertfordshire, United Kingdom
| | - Randall W. Renshaw
- Animal Health Diagnostic Centre, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Edward J. Dubovi
- Animal Health Diagnostic Centre, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Joe Brownlie
- Department of Pathology and Pathogen Biology, The Royal Veterinary College, North Mymms, Hatfield, Hertfordshire, United Kingdom
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Priestnall SL, Mitchell JA, Walker CA, Erles K, Brownlie J. New and Emerging Pathogens in Canine Infectious Respiratory Disease. Vet Pathol 2013; 51:492-504. [DOI: 10.1177/0300985813511130] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Canine infectious respiratory disease is a common, worldwide disease syndrome of multifactorial etiology. This review presents a summary of 6 viruses (canine respiratory coronavirus, canine pneumovirus, canine influenza virus, pantropic canine coronavirus, canine bocavirus, and canine hepacivirus) and 2 bacteria ( Streptococcus zooepidemicus and Mycoplasma cynos) that have been associated with respiratory disease in dogs. For some pathogens a causal role is clear, whereas for others, ongoing research aims to uncover their pathogenesis and contribution to this complex syndrome. Etiology, clinical disease, pathogenesis, and epidemiology are described for each pathogen, with an emphasis on recent discoveries or novel findings.
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Affiliation(s)
- S. L. Priestnall
- Department of Pathology and Pathogen Biology, The Royal Veterinary College, Hatfield, Hertfordshire, UK
| | - J. A. Mitchell
- Department of Pathology and Pathogen Biology, The Royal Veterinary College, Hatfield, Hertfordshire, UK
| | - C. A. Walker
- Department of Pathology and Pathogen Biology, The Royal Veterinary College, Hatfield, Hertfordshire, UK
| | - K. Erles
- Department of Pathology and Pathogen Biology, The Royal Veterinary College, Hatfield, Hertfordshire, UK
| | - J. Brownlie
- Department of Pathology and Pathogen Biology, The Royal Veterinary College, Hatfield, Hertfordshire, UK
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