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Strydom A, Segone N, Coertze R, Barron N, Strydom M, O’Neill HG. Phylogenetic Analyses of Rotavirus A, B and C Detected on a Porcine Farm in South Africa. Viruses 2024; 16:934. [PMID: 38932226 PMCID: PMC11209240 DOI: 10.3390/v16060934] [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: 05/10/2024] [Revised: 06/03/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
Rotaviruses (RVs) are known to infect various avian and mammalian hosts, including swine. The most common RVs associated with infection in pigs are A, B, C and H (RVA-C; RVH). In this study we analysed rotavirus strains circulating on a porcine farm in the Western Cape province of South Africa over a two-year period. Whole genomes were determined by sequencing using Illumina MiSeq without prior genome amplification. Fifteen RVA genomes, one RVB genome and a partial RVC genome were identified. Phylogenetic analyses of the RVA data suggested circulation of one dominant strain (G5-P[6]/P[13]/P[23]-I5-R1-C1-M1-A8-N1-T7-E1-H1), typical of South African porcine strains, although not closely related to previously detected South African porcine strains. Reassortment with three VP4-encoding P genotypes was detected. The study also reports the first complete RVB genome (G14-P[5]-I13-R4-C4-M4-A10-T4-E4-H7) from Africa. The partial RVC (G6-P[5]-IX-R1-C1-MX-A9-N6-T6-EX-H7) strain also grouped with porcine strains. The study shows the continued circulation of an RVA strain, with a high reassortment rate of the VP4-encoding segment, on the porcine farm. Furthermore, incidents of RVB and RVC on this farm emphasize the complex epidemiology of rotavirus in pigs.
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Affiliation(s)
- Amy Strydom
- Department of Microbiology and Biochemistry, University of the Free State, Bloemfontein 9300, South Africa; (A.S.); (N.S.); (R.C.); (N.B.)
| | - Neo Segone
- Department of Microbiology and Biochemistry, University of the Free State, Bloemfontein 9300, South Africa; (A.S.); (N.S.); (R.C.); (N.B.)
| | - Roelof Coertze
- Department of Microbiology and Biochemistry, University of the Free State, Bloemfontein 9300, South Africa; (A.S.); (N.S.); (R.C.); (N.B.)
- Department of Infectious Diseases, University of Gothenburg, Guldhedsgatan 10, SE-413 46 Göteborg, Sweden
| | - Nikita Barron
- Department of Microbiology and Biochemistry, University of the Free State, Bloemfontein 9300, South Africa; (A.S.); (N.S.); (R.C.); (N.B.)
| | | | - Hester G. O’Neill
- Department of Microbiology and Biochemistry, University of the Free State, Bloemfontein 9300, South Africa; (A.S.); (N.S.); (R.C.); (N.B.)
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Wu S, Gou F, Meng J, Jin X, Liu W, Ding W, Xu W, Gu C, Hu X, Cheng G, Tao P, Zhang W. Porcine kobuvirus enhances porcine epidemic diarrhea virus pathogenicity and alters the number of intestinal lymphocytes in piglets. Vet Microbiol 2024; 293:110100. [PMID: 38718527 DOI: 10.1016/j.vetmic.2024.110100] [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: 01/15/2024] [Revised: 03/25/2024] [Accepted: 04/25/2024] [Indexed: 05/15/2024]
Abstract
Recent epidemiological studies have discovered that a lot of cases of porcine epidemic diarrhea virus (PEDV) infection are frequently accompanied by porcine kobuvirus (PKV) infection, suggesting a potential relationship between the two viruses in the development of diarrhea. To investigate the impact of PKV on PEDV pathogenicity and the number of intestinal lymphocytes, piglets were infected with PKV or PEDV or co-infected with both viruses. Our findings demonstrate that co-infected piglets exhibit more severe symptoms, acute gastroenteritis, and higher PEDV replication compared to those infected with PEDV alone. Notably, PKV alone does not cause significant intestinal damage but enhances PEDV's pathogenicity and alters the number of intestinal lymphocytes. These results underscore the complexity of viral interactions in swine diseases and highlight the need for comprehensive diagnostic and treatment strategies addressing co-infections.
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Affiliation(s)
- Simin Wu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Fang Gou
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Jie Meng
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Xin Jin
- Hubei Animal Disease Prevention and Control Center, Wuhan 430070, China.
| | - Wanchen Liu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Weishuai Ding
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Weihang Xu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Changqin Gu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Xueying Hu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Guofu Cheng
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Pan Tao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Wanpo Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
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Sawant P, Kulkarni A, Mane R, Patil R, Lavania M. Metatranscriptomic assessment of diarrhoeic faeces reveals diverse RNA viruses in rotavirus group A infected piglets and calves from India. Front Cell Infect Microbiol 2023; 13:1258660. [PMID: 37965252 PMCID: PMC10642067 DOI: 10.3389/fcimb.2023.1258660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/04/2023] [Indexed: 11/16/2023] Open
Abstract
RNA viruses are a major group contributing to emerging infectious diseases and neonatal diarrhoea, causing morbidity and mortality in humans and animals. Hence, the present study investigated the metatranscriptomic-derived faecal RNA virome in rotavirus group A (RVA)-infected diarrheic piglets and calves from India. The viral genomes retrieved belonged to Astroviridae in both species, while Reoviridae and Picornaviridae were found only in piglets. The nearly complete genomes of porcine RVA (2), astrovirus (AstV) (6), enterovirus G (EVG) (2), porcine sapelovirus (PSV) (2), Aichivirus C (1), and porcine teschovirus (PTV) (1) were identified and characterised. In the piglet, AstVs of PAstV2 (MAstV-26) and PAstV4 (MAstV-31) lineages were predominant, followed by porcine RVA, EVG, PSV, Aichivirus C, teschovirus (PTV-17) in decreasing order of sequence reads. In contrast, AstV accounted for the majority of reads in bovines and belonged to MAstV-28 and a proposed MAstV-35. Both RVA G4P[6] strains exhibited prototype Gottfried strains like a genotypic constellation of G4-P[6]-I1-R1-C1-M1-A8-N1-T1-E1-H1. Ten out of eleven genes were of porcine origin, while the VP7 gene clustered with G4-lineage-1, consisting of human strains, suggesting a natural porcine-human reassortant. In the recombination analysis, multiple recombination events were detected in the PAstV4 and PAstV2 genomes, pointing out that these viruses were potential recombinants. Finally, the study finds diverse RNA virome in Indian piglets and calves for the first time, which may have contributed to diarrhoea. In the future, the investigation of RNA virome in animals will help in revealing pathogen diversity in multifactorial diseases, disease outbreaks, monitoring circulating viruses, viral discovery, and evaluation of their zoonotic potential.
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Affiliation(s)
- Pradeep Sawant
- Enteric Viruses Group, Indian Council of Medical Research (ICMR) - National Institute of Virology, Pune, India
| | - Abhijeet Kulkarni
- Bioinformatics Centre, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Rajkumar Mane
- Enteric Viruses Group, Indian Council of Medical Research (ICMR) - National Institute of Virology, Pune, India
| | - Renu Patil
- Enteric Viruses Group, Indian Council of Medical Research (ICMR) - National Institute of Virology, Pune, India
| | - Mallika Lavania
- Enteric Viruses Group, Indian Council of Medical Research (ICMR) - National Institute of Virology, Pune, India
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Qin G, Yu X, Zhao Y, Li X, Yu B, Peng H, Yang D. NLRP9 involved in antiviral innate immunity via binding VIM in IPEC-J2 cells. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2023; 147:104895. [PMID: 37473827 DOI: 10.1016/j.dci.2023.104895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/17/2023] [Accepted: 07/17/2023] [Indexed: 07/22/2023]
Abstract
BACKGROUND Nucleotide-binding oligomerization domain (NOD)-like receptors with a pyrin domain (PYD)-containing protein 9 (NLRP9) was the first nucleotide-binding region receptor (NLR) proposed to be expressed and function only in the reproductive system. Recent evidence suggests that NLRP9 is also capable of playing a role in infectious and inflammatory diseases. RESULTS AND CONCLUSIONS In this study, we examined the expression of NLRP9 in various tissues of piglets and IPEC-J2 cells. The results showed that high expression of NLRP9 mRNA and protein were detected in both intestine of piglets and IPEC-J2 cells. Both LPS and poly I:C significantly up-regulated NLRP9 protein levels in the IPEC-J2 cells. Besides, poly I:C upregulated the level of transcriptional elements NF-κB, IRF3, IRF7, ISG15, ISG56, OAS1, and IFNB1. Furthermore, interference with the NLRP9 gene in the presence of poly I:C strongly downregulated the expression of all the above genes. Moreover, we demonstrated for the first time that NLRP9 acts in combination with VIM (Vimentin). These results suggested that NLRP9 may participate in the antiviral innate immune by binding to VIM in the porcine intestine. The findings provide preliminary insights into the molecular mechanisms involved in the regulation of mucosal immunity in the porcine intestine by NLRP9.
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Affiliation(s)
- Ge Qin
- School of Animal Science and Technology, Hainan University, Hainan, Haikou, 570228, PR China; College of Animal Science, Fujian Agriculture and Forestry University, Fujian, Fuzhou, 350002, PR China
| | - Xiang Yu
- College of Animal Science, Fujian Agriculture and Forestry University, Fujian, Fuzhou, 350002, PR China
| | - Yuanjie Zhao
- College of Animal Science, Fujian Agriculture and Forestry University, Fujian, Fuzhou, 350002, PR China
| | - Xiaoping Li
- School of Animal Science and Technology, Hainan University, Hainan, Haikou, 570228, PR China
| | - Beibei Yu
- School of Animal Science and Technology, Hainan University, Hainan, Haikou, 570228, PR China
| | - Hui Peng
- School of Animal Science and Technology, Hainan University, Hainan, Haikou, 570228, PR China.
| | - Diqi Yang
- School of Animal Science and Technology, Hainan University, Hainan, Haikou, 570228, PR China.
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Puente H, Arguello H, Cortey M, Gómez-García M, Mencía-Ares O, Pérez-Perez L, Díaz I, Carvajal A. Detection and genetic characterization of enteric viruses in diarrhoea outbreaks from swine farms in Spain. Porcine Health Manag 2023; 9:29. [PMID: 37349807 DOI: 10.1186/s40813-023-00326-w] [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: 05/03/2023] [Accepted: 06/18/2023] [Indexed: 06/24/2023] Open
Abstract
BACKGROUND The aim of this work was to study the prevalence and distribution of Porcine astrovirus (PAstV), Porcine kobuvirus (PKoV), Porcine torovirus (PToV), Mammalian orthoreovirus (MRV) and Porcine mastadenovirus (PAdV) as well as their association with widely recognized virus that cause diarrhoea in swine such as coronavirus (CoVs) and rotavirus (RVs) in diarrhoea outbreaks from Spanish swine farms. Furthermore, a selection of the viral strains was genetically characterized. RESULTS PAstV, PKoV, PToV, MRV and PAdV were frequently detected. Particularly, PAstV and PKoV were detected in almost 50% and 30% of the investigated farms, respectively, with an age-dependent distribution; PAstV was mainly detected in postweaning and fattening pigs, while PKoV was more frequent in sucking piglets. Viral co-infections were detected in almost half of the outbreaks, combining CoVs, RVs and the viruses studied, with a maximum of 5 different viral species reported in three investigated farms. Using a next generation sequencing approach, we obtained a total of 24 ARN viral genomes (> 90% genome sequence), characterizing for first time the full genome of circulating strains of PAstV2, PAstV4, PAstV5 and PToV on Spanish farms. Phylogenetic analyses showed that PAstV, PKoV and PToV from Spanish swine farms clustered together with isolates of the same viral species from neighboring pig producing countries. CONCLUSIONS Although further studies to evaluate the role of these enteric viruses in diarrhoea outbreaks are required, their wide distribution and frequent association in co-infections cannot be disregard. Hence, their inclusion into routine diagnostic panels for diarrhoea in swine should be considered.
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Affiliation(s)
- Héctor Puente
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, León, Spain.
| | - Héctor Arguello
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, León, Spain
- INDEGSAL, Universidad de León, León, Spain
| | - Martí Cortey
- Departament de Sanitat i Anatomia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Manuel Gómez-García
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, León, Spain
| | - Oscar Mencía-Ares
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, León, Spain
| | - Lucía Pérez-Perez
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, León, Spain
| | - Ivan Díaz
- IRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
- Unitat Mixta d'investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
- WOAH Reference Laboratory for Classical Swine Fever, IRTA-CReSA, Bellaterra, Spain
| | - Ana Carvajal
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, León, Spain
- INDEGSAL, Universidad de León, León, Spain
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Eriksen EØ. A Systematic Review: Is Porcine Kobuvirus Causing Gastrointestinal Disease in Young Pigs? Vet Sci 2023; 10:286. [PMID: 37104441 PMCID: PMC10144032 DOI: 10.3390/vetsci10040286] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/31/2023] [Accepted: 04/05/2023] [Indexed: 04/28/2023] Open
Abstract
Since porcine kobuvirus (PKV) was first described in 2008, researchers have speculated whether the virus is of clinical importance. This systematic literature review answers the question: Is porcine kobuvirus a cause of gastrointestinal disease in young pigs? A case-control study showed that PKV was not associated with neonatal diarrhea. A cohort study suffered from a very small sample size (n = 5), and in an experimental trial, the effect of PKV inoculation could not be separated from the effect of being inoculated with porcine epidemic diarrhea virus. In 13 poorly defined observational studies, more than 4000 young pigs had been assigned a diarrhea status and their feces analyzed for PKV. Unfortunately, the studies lacked well-characterized unbiased samples, and thus the strongest possible inference from these studies was that a very strong association between PKV and diarrhea is unlikely. PKV was commonly detected in non-diarrheic pigs, and this could indicate that PKV is not a sufficient cause in itself or that reinfection of individuals with some immunological protection due to previous infections is common. Conclusively, there is a lack of good evidence of PKV being a cause of gastrointestinal disease, but the sparse available evidence suggests that PKV is of limited clinical importance.
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Affiliation(s)
- Esben Østergaard Eriksen
- Section for Production, Nutrition and Health, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C, Denmark
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Analysis of RNA virome in rectal swabs of healthy and diarrheic pigs of different age. Comp Immunol Microbiol Infect Dis 2022; 90-91:101892. [DOI: 10.1016/j.cimid.2022.101892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 11/23/2022]
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Martín-Valls GE, Li Y, Díaz I, Cano E, Sosa-Portugal S, Mateu E. Diversity of respiratory viruses present in nasal swabs under influenza suspicion in respiratory disease cases of weaned pigs. Front Vet Sci 2022; 9:1014475. [PMID: 36337208 PMCID: PMC9627340 DOI: 10.3389/fvets.2022.1014475] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/29/2022] [Indexed: 11/15/2022] Open
Abstract
Respiratory diseases in weaned pigs are a common problem, with a complex etiology involving both viruses and bacteria. In the present study, we investigated the presence of eleven viruses in nasal swabs, collected from nurseries (55 cases) under the suspicion of swine influenza A virus (swIAV) and submitted by swine veterinarians for diagnosis. The other ten viruses included in the study were influenza B (IBV) and D (IDV), Porcine reproductive and respiratory syndrome virus (PRRSV), Porcine respiratory coronavirus (PRCV), Porcine cytomegalovirus (PCMV), Porcine circovirus 2 (PCV2), 3 (PCV3) and 4 (PCV), Porcine parainfluenza 1 (PPIV1) and Swine orthopneumovirus (SOV). Twenty-six swIAV-positive cases and twenty-nine cases of swIAV-negative respiratory disease were primarily established. While IBV, IDV, PCV4 and PPIV1 were not found in any of the cases, PRCV, SOV, and PCMV were more likely to be found in swIAV-positive nurseries with respiratory disease (p < 0.05). Overall, PCV3, PRRSV, and PCMV were the most frequently detected agents at herd level. Taken individually, virus prevalence was: swIAV, 48.6%; PRCV, 48.0%; PRRSV, 31.6%; SOV, 33.8%; PCMV, 48.3%, PCV2, 36.0%; and PCV3, 33.0%. Moreover, low Ct values (<30) were common for all agents, except PCV2 and PCV3. When the correlation between pathogens was individually examined, the presence of PRRSV was negatively correlated with swIAV and PRCV, while was positively associated to PCMV (p < 0.05). Also, PRCV and SOV were positively correlated between them and negatively with PCMV. Besides, the analysis of suckling pig samples, collected in subclinically infected farrowing units under an influenza monitoring program, showed that circulation of PRCV, PCMV, SOV, and PCV3 started during the early weeks of life. Interestingly, in those subclinically infected units, none of the pathogens was found to be correlated to any other. Overall, our data may contribute to a better understanding of the complex etiology and epidemiology of respiratory diseases in weaners. This is the first report of SOV in Spain and shows, for the first time, the dynamics of this pathogen in swine farms.
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Affiliation(s)
- Gerard E. Martín-Valls
- Department de Sanitat i Anatomia Animals, Faculty of Veterinària, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- *Correspondence: Gerard E. Martín-Valls
| | - Yanli Li
- Department de Sanitat i Anatomia Animals, Faculty of Veterinària, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Ivan Díaz
- IRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Esmeralda Cano
- IRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Silvana Sosa-Portugal
- Department de Sanitat i Anatomia Animals, Faculty of Veterinària, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Enric Mateu
- Department de Sanitat i Anatomia Animals, Faculty of Veterinària, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- IRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
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Pathogenic and metagenomic evaluations reveal the correlations of porcine epidemic diarrhea virus, porcine kobuvirus and porcine astroviruses with neonatal piglet diarrhea. Microb Pathog 2022; 170:105703. [DOI: 10.1016/j.micpath.2022.105703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/20/2022] [Accepted: 07/31/2022] [Indexed: 11/17/2022]
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10
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Doerksen T, Christensen T, Lu A, Noll L, Bai J, Henningson J, Palinski R. Assessment of Porcine Rotavirus-associated virome variations in pigs with enteric disease. Vet Microbiol 2022; 270:109447. [DOI: 10.1016/j.vetmic.2022.109447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/14/2022] [Accepted: 04/23/2022] [Indexed: 11/29/2022]
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Davidson I, Stamelou E, Giantsis IA, Papageorgiou KV, Petridou E, Kritas SK. The Complexity of Swine Caliciviruses. A Mini Review on Genomic Diversity, Infection Diagnostics, World Prevalence and Pathogenicity. Pathogens 2022; 11:pathogens11040413. [PMID: 35456088 PMCID: PMC9030053 DOI: 10.3390/pathogens11040413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/25/2022] [Accepted: 03/26/2022] [Indexed: 02/01/2023] Open
Abstract
Caliciviruses are single stranded RNA viruses, non-enveloped structurally, that are implicated in the non-bacterial gastroenteritis in various mammal species. Particularly in swine, viral gastroenteritis represents a major problem worldwide, responsible for significant economic losses for the pig industry. Among the wide range of viruses that are the proven or suspected etiological agents of gastroenteritis, the pathogenicity of the members of Caliciviridae family is among the less well understood. In this context, the present review presents and discusses the current knowledge of two genera belonging to this family, namely the Norovirus and the Sapovirus, in relation to swine. Aspects such as pathogenicity, clinical evidence, symptoms, epidemiology and worldwide prevalence, genomic diversity, identification tools as well as interchanging hosts are not only reviewed but also critically evaluated. Generally, although often asymptomatic in pigs, the prevalence of those microbes in pig farms exhibits a worldwide substantial increasing trend. It should be mentioned, however, that the factors influencing the symptomatology of these viruses are still far from well established. Interestingly, both these viruses are also characterized by high genetic diversity. These high levels of molecular diversity in Caliciviridae family are more likely a result of recombination rather than evolutionary or selective adaptation via mutational steps. Thus, molecular markers for their detection are mostly based on conserved regions such as the RdRp region. Finally, it should be emphasized that Norovirus and the Sapovirus may also infect other domestic, farm and wild animals, including humans, and therefore their surveillance and clarification role in diseases such as diarrhea is a matter of public health importance as well.
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Affiliation(s)
- Irit Davidson
- Division of Avian Diseases, Kimron Veterinary Institute, Bet Dagan 50250, Israel;
| | - Efthymia Stamelou
- Department of Microbiology and Infectious Diseases, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (E.S.); (K.V.P.); (E.P.); (S.K.K.)
| | - Ioannis A. Giantsis
- Department of Animal Science, Faculty of Agricultural Sciences, University of Western Macedonia, 53100 Florina, Greece
- Correspondence:
| | - Konstantinos V. Papageorgiou
- Department of Microbiology and Infectious Diseases, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (E.S.); (K.V.P.); (E.P.); (S.K.K.)
| | - Evanthia Petridou
- Department of Microbiology and Infectious Diseases, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (E.S.); (K.V.P.); (E.P.); (S.K.K.)
| | - Spyridon K. Kritas
- Department of Microbiology and Infectious Diseases, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (E.S.); (K.V.P.); (E.P.); (S.K.K.)
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Monteagudo LV, Benito AA, Lázaro-Gaspar S, Arnal JL, Martin-Jurado D, Menjon R, Quílez J. Occurrence of Rotavirus A Genotypes and Other Enteric Pathogens in Diarrheic Suckling Piglets from Spanish Swine Farms. Animals (Basel) 2022; 12:ani12030251. [PMID: 35158575 PMCID: PMC8833434 DOI: 10.3390/ani12030251] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 02/08/2023] Open
Abstract
Simple Summary Neonatal diarrhea is a major cause of economic losses in the swine industry worldwide and has significant impact in Spain, which is one of the biggest pork producers globally. Multiple infectious agents can contribute to this condition, with some viruses such as species A rotavirus (RVA) playing a major role. Studies on their occurrence and genetic diversity are essential for development of RVA vaccines. In this study, fecal samples from diarrheic suckling piglets originating from farms distributed throughout Spain were analyzed for RVA and four other common enteric pathogens using molecular methods. The individual prevalence was 89.4%, 64.4%, 44.9%, 33.7% and 4.4% for Clostridiumperfringens, Clostridioides (formerly Clostridium) difficile, species A rotavirus, species C rotavirus and porcine epidemic diarrhea virus, respectively. Most specimens (96.9%) were positive for at least one of the target pathogens and concurrent infections were common. The molecular characterization of RVA positive specimens of specific genes used for genotyping revealed the extensive genetic diversity of RVA strains circulating in swine herds in Spain. Comparison with genotypes contained in the commercial vaccine available in Spain showed differences in the identity of the predominant RVA genotypes from diarrheic piglets in the sampled pig farms. These findings contribute to the surveillance of RVA strains circulating in swine herds in Spain and may help optimize target vaccine design. Abstract Species A rotavirus (RVA) is a major viral pathogen causing diarrhea in suckling piglets. Studies on its genetic heterogeneity have implications for vaccine efficacy in the field. In this study, fecal samples (n = 866) from diarrheic piglets younger than 28 days were analyzed over a two-year period (2018–2019). Samples were submitted from 426 farms located in 36 provinces throughout Spain and were tested using real-time PCR (qPCR) and reverse transcription real-time PCR (RT-qPCR) for five enteric pathogens. The individual prevalence was 89.4%, 64.4%, 44.9%, 33.7% and 4.4% for Clostridiumperfringens, Clostridioides (formerly Clostridium) difficile, species A rotavirus, species C rotavirus and porcine epidemic diarrhea virus, respectively. Most specimens (96.9%) were positive for at least one of the target pathogens, and more than 80% of samples harbored mixed infections. Nucleotide sequencing of 70 specimens positive for RVA revealed the presence of the VP7 genotypes G4, G9, G3, G5, G11 and the VP4 genotypes P7, P23, P6 and P13, with the combinations G4P7 and G9P23 being the most prevalent, and especially in the areas with the highest pig population. The study shows the extensive genetic diversity of RVA strains as well as discrepancies with the genotypes contained in the vaccine available in Spain, and multiple amino acid differences in antigenic epitopes of different G- and P- genotypes with the vaccine strains. Further investigations are needed to determine the efficacy of the vaccine to confer clinical protection against heterologous strains.
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Affiliation(s)
- Luis V. Monteagudo
- Department of Anatomy, Embryology and Genetics, Faculty of Veterinary Sciences, University of Zaragoza, 50013 Zaragoza, Spain;
- Agrifood Institute of Aragón (IA2), University of Zaragoza-CITA, 50013 Zaragoza, Spain
| | - Alfredo A. Benito
- EXOPOL S.L, Pol Rio Gállego D/14, San Mateo del Gállego, 50840 Zaragoza, Spain; (A.A.B.); (S.L.-G.); (J.L.A.); (D.M.-J.)
| | - Sofía Lázaro-Gaspar
- EXOPOL S.L, Pol Rio Gállego D/14, San Mateo del Gállego, 50840 Zaragoza, Spain; (A.A.B.); (S.L.-G.); (J.L.A.); (D.M.-J.)
| | - José L. Arnal
- EXOPOL S.L, Pol Rio Gállego D/14, San Mateo del Gállego, 50840 Zaragoza, Spain; (A.A.B.); (S.L.-G.); (J.L.A.); (D.M.-J.)
| | - Desirée Martin-Jurado
- EXOPOL S.L, Pol Rio Gállego D/14, San Mateo del Gállego, 50840 Zaragoza, Spain; (A.A.B.); (S.L.-G.); (J.L.A.); (D.M.-J.)
| | - Rut Menjon
- MSD Animal Health España, Carbajosa de la Sagrada, 37188 Salamanca, Spain;
| | - Joaquín Quílez
- Agrifood Institute of Aragón (IA2), University of Zaragoza-CITA, 50013 Zaragoza, Spain
- Department of Animal Pathology, Faculty of Veterinary Sciences, University of Zaragoza, 50013 Zaragoza, Spain
- Correspondence: ; Tel.: +34-976-762150
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13
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Ferreyra FM, Arruda PEH, Bradner LK, Harmon KM, Zhang M, Giménez-Lirola L, Arruda BL. Experimental porcine astrovirus type 3-associated polioencephalomyelitis in swine. Vet Pathol 2021; 58:1064-1074. [PMID: 34657543 DOI: 10.1177/03009858211025794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Porcine astrovirus type 3 (PoAstV3) is an emerging virus in the family Astroviridae that has been recently associated with polioencephalomyelitis/encephalitis. Herein, we describe the experimental oral and intravenous inoculation of an infectious central nervous system (CNS) tissue homogenate containing PoAstV3 to cesarean-derived, colostrum-deprived pigs, and the subsequent development of clinical signs, histologic lesions, specific humoral immune response, and detection of viral particles by electron microscopy (EM) and viral RNA by RT-qPCR (reverse transcriptase quantitative polymerase chain reaction) and in situ hybridization (ISH). IgG against a portion of the PoAstV3 ORF2 capsid was first detected at 7 days post-inoculation (DPI) in 2 of 4 inoculated animals and in all inoculated animals by 14 DPI. At 21 and 28 DPI, 2 of 4 inoculated animals developed ataxia, tetraparesis, and/or lateral recumbency. All inoculated animals had histologic lesions in the CNS including perivascular lymphoplasmacytic cuffs, multifocal areas of gliosis with neuronal necrosis, satellitosis, and radiculoneuritis, and PoAstV3 RNA as detected by RT-qPCR within multiple anatomic regions of the CNS. Consistent viral structures were within the soma of a spinal cord neuron in the single pig examined by EM. Of note, PoAstV3 was not only detected by ISH in neurons of the cerebrum and spinal cord but also neurons of the dorsal root ganglion and nerve roots consistent with viral dissemination via axonal transport. This is the first study reproducing CNS disease with a porcine astrovirus strain consistent with natural infection, suggesting that pigs may serve as an animal model to study the pathogenesis of neurotropic astroviruses.
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Affiliation(s)
| | - Paulo E H Arruda
- 1177Iowa State University, Ames, IA, USA.,Veterinary Resources Inc, Cambridge, IA, USA
| | | | | | - Min Zhang
- 1177Iowa State University, Ames, IA, USA
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Han Z, Song Y, Xiao J, Zhao X, Lu H, Zhang K, Jia S, Zhou J, Li J, Si F, Sun Q, Zhu S, Wang D, Yan D, Xu W, Fu X, Zhang Y. Monsavirus in monkey rectal swab and throat swab specimens in China: Proposal for Posaliviridae as a new family in Picornavirales. Virus Res 2021; 303:198501. [PMID: 34252491 DOI: 10.1016/j.virusres.2021.198501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 11/16/2022]
Abstract
Posa-like viruses have been detected in the fecal samples of several host species and are considered unclassified members of Picornavirales. Here, we identified genomic fragments of novel posa-like viruses (monsaviruses) in monkey specimens through next generation sequencing and obtained 11 full-length genomes. This monsavirus shared 88.5-89.2% nucleotide similarity with the Tottori-HG1 strain (GenBank accession LC123275). In total, 713 nucleotide polymorphism sites were identified, indicating their persistent evolution during circulation. The genomic organization and phylogenetic relationship of monsavirus were determined. Subsequent phylogenetic analysis of the conserved replication block of Hel-Pro-RdRp and core RNA-dependent RNA polymerase domain-based analysis of posa-like viruses showed significant separation compared with other known families. Further, posa-like virus genomes possessed the classical replication block of picornavirus in the 5' part of genome and picorna-like capsid domains at the structural coding region of 3' part of genome. Based on these results, we proposed the new family Posaliviridae, within Picornavirales. Four genera, which showed 68.6-75.5% amino acid distances but similar genomic organization including the conserved replication block of Hel-Pro-RdRp, the same order of the genomic coding region, and picorna-like capsid domains, were identified. The flexible genomic organization strategy and a large evolutionary scale of Posaliviridae was explicit. This study provides novel information on monsaviruses and important taxonomic data for the family Posaliviridae.
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Affiliation(s)
- Zhenzhi Han
- National Laboratory for poliomyelitis, WHO WPRO Regional Polio Reference Laboratory, NHC Key Laboratory for Medical Virology, NHC Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Yang Song
- National Laboratory for poliomyelitis, WHO WPRO Regional Polio Reference Laboratory, NHC Key Laboratory for Medical Virology, NHC Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Jinbo Xiao
- National Laboratory for poliomyelitis, WHO WPRO Regional Polio Reference Laboratory, NHC Key Laboratory for Medical Virology, NHC Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Xiaonan Zhao
- Yunnan Center for Disease Control and Prevention, Kunming 650022, PR China
| | - Huanhuan Lu
- National Laboratory for poliomyelitis, WHO WPRO Regional Polio Reference Laboratory, NHC Key Laboratory for Medical Virology, NHC Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Keyi Zhang
- National Laboratory for poliomyelitis, WHO WPRO Regional Polio Reference Laboratory, NHC Key Laboratory for Medical Virology, NHC Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Senquan Jia
- Yunnan Center for Disease Control and Prevention, Kunming 650022, PR China
| | - Jienan Zhou
- Yunnan Center for Disease Control and Prevention, Kunming 650022, PR China
| | - Junhan Li
- National Laboratory for poliomyelitis, WHO WPRO Regional Polio Reference Laboratory, NHC Key Laboratory for Medical Virology, NHC Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Fenfen Si
- National Laboratory for poliomyelitis, WHO WPRO Regional Polio Reference Laboratory, NHC Key Laboratory for Medical Virology, NHC Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Qiang Sun
- National Laboratory for poliomyelitis, WHO WPRO Regional Polio Reference Laboratory, NHC Key Laboratory for Medical Virology, NHC Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Shuangli Zhu
- National Laboratory for poliomyelitis, WHO WPRO Regional Polio Reference Laboratory, NHC Key Laboratory for Medical Virology, NHC Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Dongyan Wang
- National Laboratory for poliomyelitis, WHO WPRO Regional Polio Reference Laboratory, NHC Key Laboratory for Medical Virology, NHC Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Dongmei Yan
- National Laboratory for poliomyelitis, WHO WPRO Regional Polio Reference Laboratory, NHC Key Laboratory for Medical Virology, NHC Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Wenbo Xu
- National Laboratory for poliomyelitis, WHO WPRO Regional Polio Reference Laboratory, NHC Key Laboratory for Medical Virology, NHC Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China; Center for Biosafety Mega-Science, Chinese Academy of Sciences. Wuhan 430071, PR China
| | - Xiaoqing Fu
- Yunnan Center for Disease Control and Prevention, Kunming 650022, PR China.
| | - Yong Zhang
- National Laboratory for poliomyelitis, WHO WPRO Regional Polio Reference Laboratory, NHC Key Laboratory for Medical Virology, NHC Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China; Center for Biosafety Mega-Science, Chinese Academy of Sciences. Wuhan 430071, PR China.
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15
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Di Martino B, Di Profio F, Robetto S, Fruci P, Sarchese V, Palombieri A, Melegari I, Orusa R, Martella V, Marsilio F. Molecular Survey on Kobuviruses in Domestic and Wild Ungulates From Northwestern Italian Alps. Front Vet Sci 2021; 8:679337. [PMID: 34195249 PMCID: PMC8237713 DOI: 10.3389/fvets.2021.679337] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/17/2021] [Indexed: 11/13/2022] Open
Abstract
Since the first identification in 1989 in humans, kobuviruses (KoVs) have been identified from a wide range of animal species including carnivores, rodents, birds, ungulates, rabbits, and bats. Several studies have described the identification of genetically related KoVs in the fecal virome of domestic and wild animals suggesting a mutual exchange of viruses. By screening a total of 231 fecal samples from wild and domestic ungulates, KoVs RNA was detected in wild boars (3.2%; 2/63), chamois (4.6%; 2/43), and goats (2.6%; 2/77). On phylogenetic analysis of the partial RdRp sequence, the wild boar strains clustered within the species Aichivirus C whilst the strains identified in domestic and wild ruminants grouped into the species Aichivirus B. The complete VP1 gene was obtained for chamois and goat KoVs. Interestingly, upon phylogenetic analysis the strains grouped together with a KoV of ovine origin within a distinct genetic type (B3) of the species Aichivirus B.
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Affiliation(s)
- Barbara Di Martino
- Faculty of Veterinary Medicine, Università degli Studi di Teramo, Teramo, Italy
| | - Federica Di Profio
- Faculty of Veterinary Medicine, Università degli Studi di Teramo, Teramo, Italy
| | - Serena Robetto
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Centro di Referenza Nazionale per le Malattie degli Animali Selvatici (CeRMAS), Aosta, Italy
| | - Paola Fruci
- Faculty of Veterinary Medicine, Università degli Studi di Teramo, Teramo, Italy
| | - Vittorio Sarchese
- Faculty of Veterinary Medicine, Università degli Studi di Teramo, Teramo, Italy
| | - Andrea Palombieri
- Faculty of Veterinary Medicine, Università degli Studi di Teramo, Teramo, Italy
| | - Irene Melegari
- Faculty of Veterinary Medicine, Università degli Studi di Teramo, Teramo, Italy
| | - Riccardo Orusa
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Centro di Referenza Nazionale per le Malattie degli Animali Selvatici (CeRMAS), Aosta, Italy
| | - Vito Martella
- Department of Veterinary Medicine, Università Aldo Moro di Bari, Valenzano, Italy
| | - Fulvio Marsilio
- Faculty of Veterinary Medicine, Università degli Studi di Teramo, Teramo, Italy
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16
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Jiao Z, Liang J, Yang Y, Li Y, Yan Z, Hu G, Gu C, Hu X, Cheng G, Peng G, Zhang W. Coinfection of porcine deltacoronavirus and porcine epidemic diarrhea virus altered viral tropism in gastrointestinal tract in a piglet model. Virology 2021; 558:119-125. [PMID: 33756424 DOI: 10.1016/j.virol.2021.03.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 03/06/2021] [Accepted: 03/11/2021] [Indexed: 01/08/2023]
Abstract
Coinfection of porcine epidemic diarrhea virus (PEDV) and porcine deltacoronavirus (PDCoV) is one of common findings in diarrheal piglets that cause massive economic losses to the pig industry globally. However, the mechanism of the co-infection is unclear. In this study, neonatal non-colostrum-fed piglets were exposed orally with a single infection of PDCoV or PEDV, or coinfection of PDCoV and PEDV. Clinically all viral infected piglets developed watery diarrhea and dehydration in 24 h post-exposure (hpe) and were succumbed to viral diarrhea disease and euthanized at 72 hpe. Histopathologically, acute gastroenteritis is evident in all viral infected piglet. Immunohistochemistry, RNAscope and RT-qPCR demonstrated that PEDV tropism changes from epithelial cells of small intestine to gastric epithelial cells and macrophages in Peyer's patches in the ileum. These findings suggest that coinfection of PDCoV and PEDV can alter PEDV tropism that may affect the outcome of viral disease in piglets. This animal model can be used for the pathogenesis and vaccination of viral coinfection in piglet in the future.
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Affiliation(s)
- Zhe Jiao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, 430070, People's Republic of China
| | - Jixiang Liang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Yilin Yang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, 430070, People's Republic of China
| | - Yang Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Zhishan Yan
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Guangli Hu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, 430070, People's Republic of China
| | - Changqin Gu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Xueying Hu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Guofu Cheng
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Guiqing Peng
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, 430070, People's Republic of China.
| | - Wanpo Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China.
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17
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Puente H, Cortey M, de Nova PJG, Mencía-Ares Ó, Gómez-García M, Díaz I, Arguello H, Martín M, Rubio P, Carvajal A. First identification and characterization of rotavirus H in swine in Spain. Transbound Emerg Dis 2021; 68:3055-3069. [PMID: 33449430 DOI: 10.1111/tbed.13992] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 12/16/2020] [Accepted: 01/12/2021] [Indexed: 11/28/2022]
Abstract
Rotaviruses (RVs) are classified into nine species or groups (RVA-RVD and RVF-RVJ). RVA, RVB and RVC are well-recognized as etiological agents of enteric disease on swine farms and have been identified in all countries with a relevant pork production. Contrarily, RVH has only been identified on swine farms from Japan and more recently from Brazil, USA, South Africa and Vietnam but not yet in Europe. The occurrence of RVH was investigated in 103 Spanish pig herds. Nine farms were positive and we achieved a complete nucleotide sequences in three isolates while another RVH isolate was partially sequenced. Mean nucleotide identities with the RVH sequences available in GenBank ranged between 69.4% and 93.7%. Phylogenetically, all genomic segments of Spanish RVH isolate clustered closely with other porcine RVH strains but were distantly related to human RVH as well as bat RVH strain. To the best of our knowledge, this is the first report of RVH on swine farms in Europe including its characterization by means of complete genome sequencing.
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Affiliation(s)
- Héctor Puente
- Facultad de Veterinaria, Departamento de Sanidad Animal, Universidad de León, León, Spain
| | - Marti Cortey
- Facultat de Veterinària, Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Pedro J G de Nova
- Facultad de Veterinaria, Departamento de Sanidad Animal, Universidad de León, León, Spain
| | - Óscar Mencía-Ares
- Facultad de Veterinaria, Departamento de Sanidad Animal, Universidad de León, León, Spain
| | - Manuel Gómez-García
- Facultad de Veterinaria, Departamento de Sanidad Animal, Universidad de León, León, Spain
| | - Ivan Díaz
- Centre de Recerca en Sanitat Animal (CReSA, IRTA, IRTA-UAB), Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Héctor Arguello
- Facultad de Veterinaria, Departamento de Sanidad Animal, Universidad de León, León, Spain
| | - Margarita Martín
- Facultat de Veterinària, Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona, Bellaterra, Spain.,Centre de Recerca en Sanitat Animal (CReSA, IRTA, IRTA-UAB), Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Pedro Rubio
- Facultad de Veterinaria, Departamento de Sanidad Animal, Universidad de León, León, Spain
| | - Ana Carvajal
- Facultad de Veterinaria, Departamento de Sanidad Animal, Universidad de León, León, Spain
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18
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Nantel-Fortier N, Gauthier M, L'Homme Y, Fravalo P, Brassard J. Treatments of porcine fecal samples affect high-throughput virome sequencing results. J Virol Methods 2020; 289:114045. [PMID: 33333107 DOI: 10.1016/j.jviromet.2020.114045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 12/17/2022]
Abstract
The porcine enteric microbiota is currently extensively studied, taking advantage of developments in high-throughput sequencing technologies. However, the viral part of the microbiota, the virome, is being lightly explored, and the impact of the pretreatments used before sequencing the viruses is barely considered. In this study, the impacts of filtration, RNase and DNase treatments on virus reads recovery and diversity after sequencing on a MiSeq platform were assessed on fecal samples individually taken at <3, 5, 12 and 20 weeks from two piglets. None of the four pretreatment series affected the virus read averages or influenced diversity, but the samples with the higher proportion of reads corresponding to an entry in the "nt" database were those receiving the least number of pretreatments. The enzymatic pretreatments affected the detection of the single-stranded RNA viruses of Aichivirus C, porcine astrovirus, Sapovirus and posavirus, which is worrisome, as these viruses can be involved in swine diarrhea. If enzymatic pretreatments are used when sequencing using a high-throughput method, it may impact single-stranded RNA virus recovery, but not the overall virome diversity. Therefore, filtrated samples may be the better option, reducing the amount of bacterial genetic material while preserving the virus reads.
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Affiliation(s)
- Nicolas Nantel-Fortier
- Research Chair in Meat Safety, Department of Pathology and Microbiology, Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, Quebec, Canada; Swine and Poultry Infections Disease Research Center (CRIPA-FRQNT), University of Montreal, Canada
| | - Martin Gauthier
- Saint-Hyacinthe Research and Development Centre, Agriculture and Agri-Food Canada, Saint-Hyacinthe, Quebec, Canada
| | - Yvan L'Homme
- Swine and Poultry Infections Disease Research Center (CRIPA-FRQNT), University of Montreal, Canada; CEGEP Garneau, Quebec City, Quebec, Canada
| | - Philippe Fravalo
- Research Chair in Meat Safety, Department of Pathology and Microbiology, Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, Quebec, Canada; Swine and Poultry Infections Disease Research Center (CRIPA-FRQNT), University of Montreal, Canada
| | - Julie Brassard
- Swine and Poultry Infections Disease Research Center (CRIPA-FRQNT), University of Montreal, Canada; Saint-Hyacinthe Research and Development Centre, Agriculture and Agri-Food Canada, Saint-Hyacinthe, Quebec, Canada.
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19
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Nagai M, Wang Q, Oka T, Saif LJ. Porcine sapoviruses: Pathogenesis, epidemiology, genetic diversity, and diagnosis. Virus Res 2020; 286:198025. [PMID: 32470356 PMCID: PMC7255249 DOI: 10.1016/j.virusres.2020.198025] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 05/07/2020] [Accepted: 05/13/2020] [Indexed: 11/16/2022]
Abstract
The first porcine Sapovirus (SaV) Cowden strain was discovered in 1980. To date, eight genogroups (GIII, V-IX) and three genogroups (GIII, GV, and GVI) of porcine SaVs have been detected from domestic pigs worldwide and wild boars in Japan, respectively based on the capsid sequences. Although GIII Cowden strain replicated in the villous epithelial cells and caused intestinal lesions in the proximal small intestines (mainly in duodenal and less in jejunum), leading to mild to severe diarrhea, in the orally inoculated neonatal gnotobiotic pigs, the significance of porcine SaVs in different ages of pigs with diarrhea in the field is still undetermined. This is due to two reasons: 1) similar prevalence of porcine SaVs was detected in diarrheic and non-diarrheic pigs; and 2) co-infection of porcine SaVs with other enteric pathogens is common in pigs. Diagnosis of porcine SaV infection is mainly based on the detection of viral nucleic acids using reverse transcription (RT)-PCR and sequencing. Much is unknown about these genetically diverse viruses to understand their role in pig health and to evaluate whether vaccines are needed to prevent SaV infection.
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Affiliation(s)
- Makoto Nagai
- Laboratory of Infectious Disease, School of Veterinary Medicine, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan
| | - Qiuhong Wang
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, College of Food, Agricultural and Environmental Sciences, Department of Veterinary Preventive Medicine, The Ohio State University, Wooster, OH, USA.
| | - Tomoichiro Oka
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Linda J Saif
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, College of Food, Agricultural and Environmental Sciences, Department of Veterinary Preventive Medicine, The Ohio State University, Wooster, OH, USA
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