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Timurkan MÖ, Aydin H, Polat E. Detection and Molecular Characterization of Kobuviruses: An Agent of Canine Viral Diarrhea. Curr Microbiol 2024; 81:309. [PMID: 39150576 DOI: 10.1007/s00284-024-03831-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 08/02/2024] [Indexed: 08/17/2024]
Abstract
Clarifying the etiology of diarrhea cases of unknown cause is important in the fight against enteric infections. In this study, we aimed to investigate the role of canine kobuvirus (CaKoV), in cases of diarrhea of unknown origin in dogs. A total 121 swab samples from dogs with diarrhea were collected. Molecular analyses of the samples were performed. For this purpose, after the sequence reaction, a phylogenetic tree was created, and bioinformatics analyses were performed. The prevalence rate of CaKoV in the sampled population was determined as 16.5% (20/121). The presence of parvovirus and coronavirus, which are common viral agents in CaKoV-positive dogs, was determined as 35% (7/20) and 10% (2/20), respectively. The rate of dogs with only CaKoV detected was 65% (13/20). Phylogenetic analysis of CaKoV strains clustered together closely related to reference strains. There are very limited studies on the role of CaKoV in the etiology of diarrhea cases of unknown cause in dogs around the world. So far, only one study has been done on CaKoV in Turkey. In this report which includes molecular characterization and epidemiological data on CaKoV determined the importance of CaKoV in cases of diarrhea of unknown origin. More comprehensive studies are needed to better understand the pathogenesis, epidemiology, and biology of CaKoV and to determine effective strategies to combat it.
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Affiliation(s)
- Mehmet Özkan Timurkan
- Faculty of Veterinary Medicine, Department of Virology, Atatürk University, Erzurum, Turkey.
| | - Hakan Aydin
- Faculty of Veterinary Medicine, Department of Virology, Atatürk University, Erzurum, Turkey
| | - Erdal Polat
- Faculty of Veterinary Medicine, Department of Virology, Siirt University, Siirt, Turkey
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de Deus DR, Siqueira JAM, Maués MAC, de Fátima Mesquita de Figueiredo MJ, Júnior ECS, da Silva Bandeira R, da Costa Pinheiro K, Teixeira DM, da Silva LD, de Fátima Dos Santos Guerra S, da Silva Soares L, Gabbay YB. Analysis of viral diversity in dogs with acute gastroenteritis from Brazilian Amazon. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2024; 123:105637. [PMID: 38986824 DOI: 10.1016/j.meegid.2024.105637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 06/22/2024] [Accepted: 07/06/2024] [Indexed: 07/12/2024]
Abstract
Viral gastroenteritis is commonly reported in dogs and involves a great diversity of enteric viruses. In this research, viral diversity was investigated in dogs with diarrhea in Northern Brazil using shotgun metagenomics. Furthermore, the presence of norovirus (NoV) was investigated in 282 stool/rectal swabs of young/adult dogs with or without diarrhea from two public kennels, based on one-step reverse transcription polymerase chain reaction (RT-PCR) for genogroup VI and VII (GVI and GVII) and real-time RT-PCR for GI, GII, and GIV. Thirty-one viral families were identified, including bacteriophages. Phylogenetic analyses showed twelve complete or nearly complete genomes belonging to the species of Protoparvovirus carnivoran1, Mamastrovirus 5, Aichivirus A2, Alphacoronavirus 1, and Chipapillomavirus 1. This is the first description of the intestinal virome of dogs in Northern Brazil and the first detection of canine norovirus GVII in the country. These results are important for helping to understand the viral groups that circulate in the canine population.
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Affiliation(s)
| | | | | | | | | | | | - Kenny da Costa Pinheiro
- Section of Virology, Evandro Chagas Institute, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Dielle Monteiro Teixeira
- Section of Virology, Evandro Chagas Institute, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | | | | | - Luana da Silva Soares
- Section of Virology, Evandro Chagas Institute, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Yvone Benchimol Gabbay
- Section of Virology, Evandro Chagas Institute, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
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Van Nguyen T, Kasantikul T, Piewbang C, Techangamsuwan S. Evolutionary dynamics of canine kobuvirus in Vietnam and Thailand reveal the evidence of viral ability to evade host immunity. Sci Rep 2024; 14:12037. [PMID: 38802579 PMCID: PMC11130191 DOI: 10.1038/s41598-024-62833-2] [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: 02/15/2024] [Accepted: 05/21/2024] [Indexed: 05/29/2024] Open
Abstract
Canine kobuvirus (CaKoV) is a pathogen associated with canine gastrointestinal disease (GID). This study examined 327 rectal swabs (RS), including 113 from Vietnam (46 healthy, 67 with GID) and 214 from Thailand (107 healthy and 107 with GID). CaKoV was detected in both countries, with prevalences of 28.3% (33/113) in Vietnam and 7.9% (17/214) in Thailand. Additionally, CaKoV was found in both dogs with diarrhea and healthy dogs. CaKoV was mainly found in puppies under six months of age (30.8%). Co-detection with other canine viruses were also observed. The complete coding sequence (CDS) of nine Vietnamese and four Thai CaKoV strains were characterized. Phylogenetic analysis revealed a close genetic relationship between Vietnamese and Thai CaKoV strains, which were related to the Chinese strains. CDS analysis indicated a distinct lineage for two Vietnamese CaKoV strains. Selective pressure analysis on the viral capsid (VP1) region showed negative selection, with potential positive selection sites on B-cell epitopes. This study, the first of its kind in Vietnam, provides insights into CaKoV prevalence in dogs of different ages and healthy statuses, updates CaKoV occurrence in Thailand, and sheds light on its molecular characteristics and immune evasion strategies.
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Affiliation(s)
- Tin Van Nguyen
- The International Graduate Program of Veterinary Science and Technology (VST), Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- Faculty of Animal Science and Veterinary Medicine, Nong Lam University, Ho Chi Minh City, Vietnam
- Animal Virome and Diagnostic Development Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Tanit Kasantikul
- Veterinary Diagnostic Laboratory, Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Chutchai Piewbang
- Animal Virome and Diagnostic Development Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.
- Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Somporn Techangamsuwan
- Animal Virome and Diagnostic Development Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.
- Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand.
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Detection and genetic characterization of canine kobuvirus from stray dogs in Shanghai, China. Arch Virol 2023; 168:112. [PMID: 36918497 PMCID: PMC10013983 DOI: 10.1007/s00705-023-05710-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/23/2022] [Indexed: 03/16/2023]
Abstract
In this study, rectal samples collected from 60 stray dogs in dog shelters were screened for canine kobuvirus and other enteroviruses by quantitative real-time reverse transcription polymerase chain reaction. Canine kobuvirus was detected in 25% (15/60) of the samples. In the 15 positive samples, the coinfection rates of canine distemper virus, canine coronavirus, canine astrovirus, canine norovirus, and canine rotavirus were 26.67%, 20.00%, 73.33%, 0%, and 20.00%, respectively. Phylogenetic analysis based on partial VP1 sequences identified a novel canine kobuvirus that was a recombinant of canine and feline kobuvirus. Bayesian evolutionary analysis revealed that the rate of evolution of the VP1 gene of canine kobuvirus was 1.36 × 10-4 substitutions per site per year (95% highest posterior density interval, 6.28 × 10-7 - 4.30 × 10-4 substitutions per site per year). Finally, the divergence time of VP1 was around 19.44 years ago (95% highest posterior density interval, 12.96-27.57 years).
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Pacini MI, Mazzei M, Sgorbini M, D’Alfonso R, Papini RA. A One-Year Retrospective Analysis of Viral and Parasitological Agents in Wildlife Animals Admitted to a First Aid Hospital. Animals (Basel) 2023; 13:ani13050931. [PMID: 36899788 PMCID: PMC10000059 DOI: 10.3390/ani13050931] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
This study aimed to provide information on the presence and frequency of viral and parasitic agents in wildlife presented to a Veterinary Teaching Hospital in 2020-2021. Serum and faecal samples were collected from 50 rescued animals (roe deer, fallow deer, foxes, badgers, pine martens, and porcupines) and examined by serological, molecular, and parasitological techniques. Transtracheal wash (TTW) was also collected post-mortem from roe deer. Overall, the results of the different techniques showed infections with the following viral and parasitic agents: Bovine Viral Diarrhea Virus, Small Ruminant Lentiviruses, Kobuvirus, Astrovirus, Canine Adenovirus 1, Bopivirus, gastrointestinal strongyles, Capillaria, Ancylostomatidae, Toxocara canis, Trichuris vulpis, Hymenolepis, Strongyloides, Eimeria, Isospora, Dictyocaulus, Angiostrongylus vasorum, Crenosoma, Dirofilaria immitis, Neospora caninum, Giardia duodenalis, and Cryptosporidium. Sequencing (Tpi locus) identified G. duodenalis sub-assemblages AI and BIV in one roe deer and one porcupine, respectively. Adult lungworms collected from the TTW were identified as Dictyocaulus capreolus (COX1 gene). This is the first molecular identification of G. duodenalis sub-assemblage AI and D. capreolus in roe deer in Italy. These results show a wide presence of pathogens in wild populations and provide an overview of environmental health surveillance.
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Affiliation(s)
- Maria Irene Pacini
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy
- Correspondence:
| | - Maurizio Mazzei
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy
| | - Micaela Sgorbini
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy
| | - Rossella D’Alfonso
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Roberto Amerigo Papini
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy
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Kaiser FK, van Dyck L, Jo WK, Schreiner T, Pfankuche VM, Wohlsein P, Baumann I, Peters M, Baumgärtner W, Osterhaus ADME, Ludlow M. Detection of Systemic Canine Kobuvirus Infection in Peripheral Tissues and the Central Nervous System of a Fox Infected with Canine Distemper Virus. Microorganisms 2021; 9:microorganisms9122521. [PMID: 34946122 PMCID: PMC8705045 DOI: 10.3390/microorganisms9122521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/17/2021] [Accepted: 12/03/2021] [Indexed: 12/13/2022] Open
Abstract
Canine kobuvirus (CaKV) is a globally distributed pathogen of dogs and is predominantly associated with infection of the gastrointestinal tract. However, an etiological link to enteric disease has not been established since CaKV has been identified in both asymptomatic dogs and animals with diarrheic symptoms. In this study, an extraintestinal CaKV infection was detected by next-generation sequencing in a fox (Vulpes vulpes) in Germany concomitant with a canine distemper virus (canine morbillivirus; CDV) co-infection. Phylogenetic analysis of the complete coding region sequence showed that this strain was most closely related to a CaKV strain detected in a dog in the United Kingdom in 2008. The tissue and cellular tropism of CaKV was characterized by the detection of viral antigens and RNA. CaKV RNA was detected by in situ hybridization in different tissues, including epithelial cells of the stomach and ependymal cells in the brain. The use of a new RT-qPCR assay for CaKV confirmed the systemic distribution of CaKV with viral RNA also detected in the lymph nodes, bladder, trachea, and brain. The detection of a CDV infection in this fox suggests that immunosuppression should be further investigated as a contributing factor to the enhanced extraintestinal spread of CaKV.
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Affiliation(s)
- Franziska K. Kaiser
- Research Center for Infectious Disease and Zoonoses, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (F.K.K.); (W.K.J.); (I.B.); (A.D.M.E.O.)
| | - Lydia van Dyck
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (L.v.D.); (T.S.); (V.M.P.); (P.W.); (W.B.)
| | - Wendy K. Jo
- Research Center for Infectious Disease and Zoonoses, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (F.K.K.); (W.K.J.); (I.B.); (A.D.M.E.O.)
| | - Tom Schreiner
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (L.v.D.); (T.S.); (V.M.P.); (P.W.); (W.B.)
| | - Vanessa M. Pfankuche
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (L.v.D.); (T.S.); (V.M.P.); (P.W.); (W.B.)
| | - Peter Wohlsein
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (L.v.D.); (T.S.); (V.M.P.); (P.W.); (W.B.)
| | - Ilka Baumann
- Research Center for Infectious Disease and Zoonoses, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (F.K.K.); (W.K.J.); (I.B.); (A.D.M.E.O.)
| | - Martin Peters
- Chemisches und Veterinäruntersuchungsamt Westfalen, 59821 Arnsberg, Germany;
| | - Wolfgang Baumgärtner
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (L.v.D.); (T.S.); (V.M.P.); (P.W.); (W.B.)
| | - Albert D. M. E. Osterhaus
- Research Center for Infectious Disease and Zoonoses, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (F.K.K.); (W.K.J.); (I.B.); (A.D.M.E.O.)
| | - Martin Ludlow
- Research Center for Infectious Disease and Zoonoses, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (F.K.K.); (W.K.J.); (I.B.); (A.D.M.E.O.)
- Correspondence:
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Identification and full-genome sequencing of canine kobuvirus in canine fecal samples collected from Anhui Province, eastern China. Arch Virol 2020; 165:2495-2501. [PMID: 32776176 PMCID: PMC7415332 DOI: 10.1007/s00705-020-04773-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 07/09/2020] [Indexed: 11/29/2022]
Abstract
Canine kobuvirus (CaKoV), a newly described virus, is the causative agent of gastroenteritis in dogs. In this study, 57 fecal samples from dogs with diarrhea in Anhui Province, eastern China, were collected. Among these, five samples were identified to be infected with CaKoV, by polymerase chain reaction targeting the CaKoV 3D gene. The five CaKoV strains were subjected to phylogenetic analysis. The sequences of VP1 from the five CaKoV strains were 93.6%–96.1% identical to each other and 91.75%–97.95% identical to other reported CaKoV VP1 sequences. In addition, the complete genome of one strain was successfully amplified and sequenced. The genome consisted of 8223 nucleotides and shared 94.6%–97.0% nucleotide and 93.1%–94.0% amino acid sequence identity with other CaKoV isolates. Phylogenetic analysis revealed that the CaKoV strain from Anhui Province was similar to other Chinese strains, and it was more closely related to feline and mouse kobuviruses than to sheep and bovine kobuviruses. Interestingly, all of the CaKoV-positive samples were coinfected with canine parvovirus. The finding of CaKoV infection in dogs with diarrhea and coinfection with canine parvovirus are a cause for concern and highlight the need for management and preventive measures.
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Wang Y, Cui Y, Li Y, Zhang D, Sun J, Guo X, Liu G, Jiang S, Li Y. Development of an SYBR Green I-based real-time PCR assay for the rapid detection of canine kobuvirus. J Virol Methods 2020; 285:113944. [PMID: 32730841 PMCID: PMC7385718 DOI: 10.1016/j.jviromet.2020.113944] [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] [Received: 06/24/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 01/26/2023]
Abstract
The first development a SYBR Green I-based real-time PCR assay to detect canine kobuvirus. Canine kobuvirus (CaKoV) was detected at a rate of 8.7 % in the Anhui province. This method has implications for the prevention and control of CaKoV-infect in dogs.
Canine kobuvirus (CaKoV) is a causative agent of gastroenteritis in dogs. Rapid detection of CaKoV is important for preventing and controlling this condition. In this study, an SYBR Green I-based quantitative real-time PCR assay was established for CaKoV detection. Specific primers targeting a highly conserved region of the CaKoV 3D gene were developed. After optimization, the method detected a minimum of 1 × 101 copies/μL with high specificity, stability, and repeatability. Moreover, the entire process only required approximately 1.5 h for completion. Our results were supported by those obtained for clinical samples, in which our developed method was successfully applied. The newly established real-time PCR is a rapid, sensitive, specific, and repeatable method for the quantitative detection of CaKoV and can, therefore, be used in epidemiological studies.
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Affiliation(s)
- Yong Wang
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Yongqiu Cui
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Yeqiu Li
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Da Zhang
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Jianfei Sun
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Xu Guo
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Guangqing Liu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Shudong Jiang
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China.
| | - Yongdong Li
- Municipal Key Laboratory of Virology, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, PR China.
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Wang Z, Jiang Y, Liu X, Lin W, Feng Q, Xin T, Guo X, Hou S, Zhu H, Jia H. Epidemiological and phylogenetic analysis of canine kobuviruses in Tangshan, China. Arch Virol 2020; 165:2317-2322. [PMID: 32643035 PMCID: PMC7341465 DOI: 10.1007/s00705-020-04727-y] [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] [Received: 02/15/2020] [Accepted: 06/04/2020] [Indexed: 12/05/2022]
Abstract
Canine kobuviruses (CaKoV) have been found in healthy and diarrheic dogs as well as asymptomatic wild carnivores in various countries. In order to investigate the prevalence and evolution of CaKoV in Tangshan, China, 82 dog fecal samples from pet hospitals in Tangshan were subjected to RT-PCR targeting a segment of the 3D gene of CaKoV. Using this method, we identified CaKoV in 14 samples (17.07%, 14/82). Of the CaKoV-positive samples, 78.57% (11/14) and 50% (7/14) were positive for canine parvovirus and canine coronavirus, respectively. The nucleotide sequences of the 14 strains 96.6%–100% identical to each other and 77.6%–99.2% identical to representative sequences from the NCBI GenBank database. We also amplified the 14 VP1 gene sequences and found that they were 93.3%–99.6% identical to each other and 73.3%–97.8% identical to representative sequences from the NCBI GenBank database. Phylogenetic analysis revealed that the 14 CaKoV strains from Tangshan are closely related to those identified in China and Thailand and display less similarity to those found in Africa, the United States, and Europe. Our data suggest that CaKoV circulated in young pet dogs in Tangshan and displays a high co-infection rate with CCoV and CPV. However, the relationship between the three viruses and their roles in the host requires further investigation.
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Affiliation(s)
- Zhaoyang Wang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, China
| | - Yajun Jiang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, China
| | - Xueting Liu
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, China
| | - Weidong Lin
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, China
| | - Qianqian Feng
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, China
| | - Ting Xin
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, China
| | - Xiaoyu Guo
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, China
| | - Shaohua Hou
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, China
| | - Hongfei Zhu
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, China
| | - Hong Jia
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, China.
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