1
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Xu L, Ge G, Li D, Li J, Gong Q, Shi K, Liu F, Diao N, Cui Z, Liu Y, Leng X, Du R. Establishment of a real-time fluorescent quantitative PCR detection method and phylogenetic analysis of BoAHV-1. BMC Vet Res 2024; 20:180. [PMID: 38715028 PMCID: PMC11075196 DOI: 10.1186/s12917-024-04025-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 04/18/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Infectious bovine rhinotracheitis (IBR), caused by Bovine alphaherpesvirus-1 (BoAHV-1), is an acute, highly contagious disease primarily characterized by respiratory tract lesions in infected cattle. Due to its severe pathological damage and extensive transmission, it results in significant economic losses in the cattle industry. Accurate detection of BoAHV-1 is of paramount importance. In this study, we developed a real-time fluorescent quantitative PCR detection method for detecting BoAHV-1 infections. Utilizing this method, we tested clinical samples and successfully identified and isolated a strain of BoAHV-1.1 from positive samples. Subsequently, we conducted a genetic evolution analysis on the isolate strain's gC, TK, gG, gD, and gE genes. RESULTS The study developed a real-time quantitative PCR detection method using SYBR Green II, achieving a detection limit of 7.8 × 101 DNA copies/μL. Specificity and repeatability analyses demonstrated no cross-reactivity with other related pathogens, highlighting excellent repeatability. Using this method, 15 out of 86 clinical nasal swab samples from cattle were found to be positive (17.44%), which was higher than the results obtained from conventional PCR detection (13.95%, 12/86). The homology analysis and phylogenetic tree analysis of the gC, TK, gG, gD, and gE genes of the isolated strain indicate that the JL5 strain shares high homology with the BoAHV-1.1 reference strains. Amino acid sequence analysis revealed that gC, gE, and gG each had two amino acid mutations, while the TK gene had one synonymous mutation and one H to Y mutation, with no amino acid mutations observed in the gD gene. Phylogenetic tree analysis indicated that the JL5 strain belongs to the BoAHV-1.1 genotype and is closely related to American strains such as C33, C14, and C28. CONCLUSIONS The established real-time fluorescent quantitative PCR detection method exhibits good repeatability, specificity, and sensitivity. Furthermore, genetic evolution analysis of the isolated BoAHV-1 JL-5 strain indicates that it belongs to the BoAHV-1.1 subtype. These findings provide a foundation and data for the detection, prevention, and control Infectious Bovine Rhinotracheitis.
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Affiliation(s)
- Lihui Xu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Guiyang Ge
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Dongli Li
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Jianming Li
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Qinglong Gong
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Kun Shi
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Fei Liu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Naichao Diao
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Zhenzhen Cui
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Yingyu Liu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Xue Leng
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, 130118, Jilin, China.
| | - Rui Du
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, 130118, Jilin, China.
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2
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Zhang S, Liu G, Zhang Y, Wang C, Xu X, Zhao Y, Xiang Z, Wu W, Yang L, Chen J, Guo A, Chen Y. Investigation of the safety and protective efficacy of an attenuated and marker M. bovis-BoHV-1 combined vaccine in bovines. Front Immunol 2024; 15:1367253. [PMID: 38646533 PMCID: PMC11027501 DOI: 10.3389/fimmu.2024.1367253] [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: 01/08/2024] [Accepted: 03/26/2024] [Indexed: 04/23/2024] Open
Abstract
Bovine respiratory disease (BRD) is one of the most common diseases in the cattle industry worldwide; it is caused by multiple bacterial or viral coinfections, of which Mycoplasma bovis (M. bovis) and bovine herpesvirus type 1 (BoHV-1) are the most notable pathogens. Although live vaccines have demonstrated better efficacy against BRD induced by both pathogens, there are no combined live and marker vaccines. Therefore, we developed an attenuated and marker M. bovis-BoHV-1 combined vaccine based on the M. bovis HB150 and BoHV-1 gG-/tk- strain previously constructed in our lab and evaluated in rabbits. This study aimed to further evaluate its safety and protective efficacy in cattle using different antigen ratios. After immunization, all vaccinated cattle had a normal rectal temperature and mental status without respiratory symptoms. CD4+, CD8+, and CD19+ cells significantly increased in immunized cattle and induced higher humoral and cellular immune responses, and the expression of key cytokines such as IL-4, IL-12, TNF-α, and IFN-γ can be promoted after vaccination. The 1.0 × 108 CFU of M. bovis HB150 and 1.0 × 106 TCID50 BoHV-1 gG-/tk- combined strain elicited the most antibodies while significantly increasing IgG and cellular immunity after challenge. In conclusion, the M. bovis HB150 and BoHV-1 gG-/tk- combined strain was clinically safe and protective in calves; the mix of 1.0 × 108 CFU of M. bovis HB150 and 1.0 × 106 TCID50 BoHV-1 gG-/tk- strain was most promising due to its low amount of shedding and highest humoral and cellular immune responses compared with others. This study introduces an M. bovis-BoHV-1 combined vaccine for application in the cattle industry.
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MESH Headings
- Animals
- Cattle
- Herpesvirus 1, Bovine/immunology
- Vaccines, Combined/immunology
- Vaccines, Combined/administration & dosage
- Vaccines, Attenuated/immunology
- Vaccines, Attenuated/administration & dosage
- Mycoplasma bovis/immunology
- Viral Vaccines/immunology
- Viral Vaccines/administration & dosage
- Viral Vaccines/adverse effects
- Bacterial Vaccines/immunology
- Bacterial Vaccines/administration & dosage
- Bacterial Vaccines/adverse effects
- Cytokines/metabolism
- Antibodies, Viral/blood
- Antibodies, Viral/immunology
- Antibodies, Bacterial/blood
- Antibodies, Bacterial/immunology
- Mycoplasma Infections/prevention & control
- Mycoplasma Infections/veterinary
- Mycoplasma Infections/immunology
- Vaccines, Marker/immunology
- Vaccines, Marker/administration & dosage
- Vaccination/veterinary
- Vaccine Efficacy
- Immunity, Humoral
- Bovine Respiratory Disease Complex/prevention & control
- Bovine Respiratory Disease Complex/immunology
- Bovine Respiratory Disease Complex/virology
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Affiliation(s)
- Sen Zhang
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan, China
| | - Guoxing Liu
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Yisheng Zhang
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Chen Wang
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan, China
| | - Xiaowen Xu
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan, China
| | - Yuhao Zhao
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan, China
| | - Zhijie Xiang
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Wenying Wu
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan, China
| | - Li Yang
- Wuhan Keqian Biology Co., Ltd, Research and Development Department, Wuhan, China
| | - Jianguo Chen
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Aizhen Guo
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan, China
| | - Yingyu Chen
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan, China
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Zhang S, Liu G, Wu W, Yang L, Shirani I, Guo A, Chen Y. Investigation of the Optimal Immunization Dose and Protective Efficacy of an Attenuated and Marker M. bovis-Bovine Herpesvirus Type 1 Combined Vaccine in Rabbits. Animals (Basel) 2024; 14:748. [PMID: 38473133 DOI: 10.3390/ani14050748] [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: 01/30/2024] [Revised: 02/18/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
Bovine respiratory disease (BRD) is one of the most common diseases in the cattle industry; it is a globally prevalent multifactorial infection primarily caused by viral and bacterial coinfections. In China, Mycoplasma bovis (M. bovis) and bovine herpesvirus type 1 (BoHV-1) are the most notable pathogens associated with BRD. Our previous study attempted to combine the two vaccines and conducted a preliminary investigation of their optimal antigenic ratios. Based on this premise, the research extended its investigation by administering varying vaccine doses in a rabbit model to identify the most effective immunization dosage. After immunization, all rabbits in other immunization dose groups had a normal rectal temperature without obvious clinical symptoms. Furthermore, assays performed on the samples collected from immunized rabbits indicated that there were increased humoral and cellular immunological reactions. Moreover, the histological analysis of the lungs showed that immunized rabbits had more intact lung tissue than their unimmunized counterparts after the challenge. Additionally, there appears to be a positive correlation between the protective efficacy and the immunization dose. In conclusion, the different immunization doses of the attenuated and marker M. bovis HB150 and BoHV-1 gG-/tk- combined vaccine were clinically safe in rabbits; the mix of 2.0 × 108 CFU of M. bovis HB150 and 2.0 × 106 TCID50 BoHV-1 gG-/tk- strain was most promising due to its highest humoral and cellular immune responses and a more complete morphology of the lung tissue compared with others. These findings determined the optimal immunization dose of the attenuated and marker M. bovis HB150 and BoHV-1 gG-/tk- combined vaccine, laying a foundation for its clinical application.
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Affiliation(s)
- Sen Zhang
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan 430070, China
| | - Guoxing Liu
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan 430070, China
| | - Wenying Wu
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan 430070, China
| | - Li Yang
- Wuhan Keqian Biology Co., Ltd., Wuhan 430200, China
| | - Ihsanullah Shirani
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan 430070, China
| | - Aizhen Guo
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan 430070, China
| | - Yingyu Chen
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan 430070, China
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4
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Zhang S, Zhang Y, Liu G, Wang C, Ji Y, Chen J, Hu C, Chen X, Guo A, Chen Y. The Safety and Protective Efficacy Evaluation of an Attenuated M. bovis-BoHV-1 Bivalent Vaccine in Rabbits. Vaccines (Basel) 2023; 11:1698. [PMID: 38006030 PMCID: PMC10674485 DOI: 10.3390/vaccines11111698] [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: 10/08/2023] [Revised: 10/31/2023] [Accepted: 11/05/2023] [Indexed: 11/26/2023] Open
Abstract
Bovine respiratory disease (BRD) is a global prevalent multifactorial infection primarily caused by viral and bacterial coinfections. In China, Mycoplasma bovis (M. bovis) and bovine herpesvirus type 1 (BoHV-1) are the predominant pathogens associated with BRD. Our previous study involved the development of attenuated M. bovis HB150 and BoHV-1 gG-/tk- vaccine strains, which were thoroughly assessed for their safety profiles and protective efficacy in cattle. In this study, we applied a combination of vaccines in varying ratios and used a rabbit model to determine the safety and protective efficacy. We used PCR/RT-PCR to detect the postimmunization and challenge shedding of M. bovis and BoHV-1. Additionally, we measured antibody titers and the expression of IFN-β and TNF-α to evaluate the humoral and cellular immune responses, respectively. Furthermore, we performed a histopathological analysis to assess lung damage. Our study provides evidence of the safety and effectiveness of the bivalent M. bovis-BoHV-1 vaccine in rabbits, particularly when applying a combination of 1.0 × 108 CFU of M. bovis HB150 and 1.0 × 106 TCID50 of the BoHV-1 gG-/tk- strain. The bivalent vaccine significantly enhanced both the long-term antibody immune response and cellular protection against the M. bovis and BoHV-1 challenge. These findings provide a valuable model for the potential application in cattle.
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Affiliation(s)
- Sen Zhang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.Z.)
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan 430070, China
| | - Yisheng Zhang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.Z.)
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
| | - Guoxing Liu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.Z.)
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
| | - Chen Wang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.Z.)
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan 430070, China
| | - Yan Ji
- Key Laboratory of Ruminant Biological Products, Ministry of Agriculture and Rural Affair, Hohhot 010011, China
- The Spirit JinYu Biological Pharmaceutical Co., Ltd., Hohhot 010030, China
| | - Jianguo Chen
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.Z.)
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
| | - Changmin Hu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.Z.)
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
| | - Xi Chen
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.Z.)
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
| | - Aizhen Guo
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.Z.)
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan 430070, China
| | - Yingyu Chen
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.Z.)
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan 430070, China
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5
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Karimi O, Bitaraf Sani M, Bakhshesh M, Zareh Harofteh J, Poormirzayee-Tafti H. Prevalence of bovine herpesvirus 1 antibodies and risk factors in dairy cattle of Iran's central desert. Trop Anim Health Prod 2022; 55:23. [PMID: 36547722 DOI: 10.1007/s11250-022-03426-x] [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: 07/24/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022]
Abstract
Bovine herpesvirus type 1 (BoHV 1) is a major bovine pathogen spreading worldwide and causing extensive damage to the livestock industry. BoHV causes respiratory, genital, and neurological disorders. A cross-sectional study was performed for the first time to estimate the seroreactivity to BoHV 1 and related risk factors among Iran's central desert dairy cattle. A total of 800 blood samples was randomly collected from 76 unvaccinated herds. Samples were tested with an indirect enzyme-linked immunosorbent assay (ELISA) commercial kit to detect BoHV 1 antibodies. The logistic regression model was used to analyze the data. BoHV 1 seroreactivity at animal and herd levels was 50% and 65%, respectively. Herd size was recognized as a risk factor (OR = 2.65, CI = 1.61-4.37) for seroreactivity to BoHV using GLM (p < 0.05). The high prevalence of BoHV 1 antibodies in the study area indicates the need to implement educational programs on the importance of the disease and design methods to control and prevent virus distribution.
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Affiliation(s)
- Omid Karimi
- Department of Animal Viral Diseases Research, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
| | - Morteza Bitaraf Sani
- Animal Science Research Department, Yazd Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Yazd, Iran
| | - Mehran Bakhshesh
- Department of Animal Viral Diseases Research, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Javad Zareh Harofteh
- Animal Science Research Department, Yazd Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Yazd, Iran
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A neutralizing monoclonal antibody–based blocking ELISA to detect bovine herpesvirus 1 and vaccination efficacy. Appl Microbiol Biotechnol 2022; 107:379-390. [DOI: 10.1007/s00253-022-12308-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 11/14/2022] [Accepted: 11/18/2022] [Indexed: 12/05/2022]
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7
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Guo W, Xie J, Liu J, Chen H, Jung YS. The full-genome characterization and phylogenetic analysis of bovine herpesvirus type 1.2 isolated in China. Front Microbiol 2022; 13:1033008. [PMID: 36386697 PMCID: PMC9664903 DOI: 10.3389/fmicb.2022.1033008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 09/26/2022] [Indexed: 01/25/2023] Open
Abstract
Bovine herpesvirus type 1 (BHV-1) causes bovine respiratory disease that poses a significant threat to the cattle industry. The prevalence of BHV-1 has recently increased in China. However, the lack of information about the prevalent isolates limits the control of the disease. In this study, a novel strain of BHV-1 was isolated from nasal swabs of Holstein cows in 2020 in China, designated as BHV SHJS. The genome of BHV strain SHJS is 135, 102 bp in length and highly similar to strain SP1777 (KM258883.1) with an identity of 99.64%. Mutations, insertions, or deletions mainly occur in UL27, UL44, and US8, etc., relative to the different genomic coordinates. Phylogenetic tree of UL44 (gC) showed that BHV strain SHJS belongs to BHV-1.2b cluster. The result showed that the strain had a different evolutionary origin from those prevalent in China. This study will enrich our knowledge regarding BHV outbreak strains in China and contribute to the prevention and pathogenic studies of BHV-1.2.
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Affiliation(s)
- Weiqiang Guo
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Jia Xie
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Jingyi Liu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Hongjun Chen
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Yong-Sam Jung
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu, China,*Correspondence: Yong-Sam Jung,
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8
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Ortiz-González AD, Buitrago HAL, Bulla-Castañeda DM, Lancheros-Buitrago DJ, Garcia-Corredor DJ, Díaz-Anaya AM, Tobón-Torreglosa JC, Ortiz-Ortega D, Pulido-Medellín MO. Seroprevalence and risk factors associated with bovine herpesvirus 1 in dairy herds of Colombia. Vet World 2022; 15:1550-1556. [PMID: 35993084 PMCID: PMC9375214 DOI: 10.14202/vetworld.2022.1550-1556] [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: 03/03/2022] [Accepted: 05/05/2022] [Indexed: 11/16/2022] Open
Abstract
Background and Aim: Infectious bovine rhinotracheitis (IBR) is an infectious disease widely distributed globally and is considered the main cause of various reproductive and respiratory tract diseases in cattle and buffaloes. This study aimed to estimate seroprevalence and determine risk factors associated with the presentation of IBR in the municipality of Sotaquirá, Boyacá (Colombia).
Materials and Methods: A descriptive cross-sectional study with simple random sampling was performed, and the sample size was 1,000 cattle. Blood samples were obtained by coccygeal venipuncture and processed through indirect enzyme-linked immunosorbent assay using the Synbiotics® kit (Zoetis, New Jersey, USA) with a sensitivity and specificity of 96% and 98%, respectively. Data were processed using the statistical program EpiInfo® (Centers for Disease Control and Prevention; Atlanta, Georgia).
Results: A high seroprevalence of 57.5% was established. Seroprevalence was the highest in cattle >4 years of age (65.0% apparent seroprevalence [AS]; 67% true seroprevalence [TS]) and in the Holstein breed (65.5% AS; 67.8% TS). The breed and age of the animals were significantly associated with each other. The Holstein breed, age group >4 years, uncertified semen, and fetal death were established as risk factors for IBR. In comparison, the age groups of <1 and 1–2 years and the Normande breed were established as protective factors against the bovine herpesvirus-1 virus.
Conclusion: Management factors, such as livestock from other owners and animal purchases, which affect disease presentation, are evident. The implementation and development of novel prevention and control measures for IBR at the national level are necessary.
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Affiliation(s)
- Aura Daniela Ortiz-González
- Grupo de Investigación en Medicina Veterinaria y Zootecnia, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia
| | - H. Alexander Lopez Buitrago
- Grupo de Investigación en Medicina Veterinaria y Zootecnia, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia
| | - Diana María Bulla-Castañeda
- Grupo de Investigación en Medicina Veterinaria y Zootecnia, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia
| | - D. Johana Lancheros-Buitrago
- Grupo de Investigación en Medicina Veterinaria y Zootecnia, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia
| | - Diego Jose Garcia-Corredor
- Grupo de Investigación en Medicina Veterinaria y Zootecnia, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia
| | - Adriana Maria Díaz-Anaya
- Grupo de Investigación en Medicina Veterinaria y Zootecnia, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia; Doctoral Program in Biomedical and Pharmaceutical Sciences, University of Namur, Namur, Belgium
| | | | - Diego Ortiz-Ortega
- Corporación Colombiana de Investigación Agropecuaria, Mosquera, Colombia
| | - Martín Orlando Pulido-Medellín
- Grupo de Investigación en Medicina Veterinaria y Zootecnia, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia
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Zhang J, Wang W, Yang M, Lin J, Xue F, Zhu Y, Yin X. Development of a One-Step Multiplex Real-Time PCR Assay for the Detection of Viral Pathogens Associated With the Bovine Respiratory Disease Complex. Front Vet Sci 2022; 9:825257. [PMID: 35155658 PMCID: PMC8825873 DOI: 10.3389/fvets.2022.825257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/04/2022] [Indexed: 12/25/2022] Open
Abstract
Bovine respiratory disease complex (BRDC) occurs widely in cattle farms. The main viral pathogens include bovine viral diarrhea virus (BVDV), Bovine herpesvirus 1 (BoHV-1), bovine parainfluenza virus type 3 (BPIV3), and bovine respiratory syncytial virus (BRSV), and the newly emerged influenza D virus (IDV). In this study, we have developed a one-step multiplex real-time Polymerase Chain Reaction (PCR) capable of simultaneously detecting these five viral pathogens causing BRDC. The established assay could specifically detect targeted viruses without cross-reaction with others. The detection limit was ~10 copies/reaction for single real-time PCR and 100 copies/ reaction for multiplex real-time PCR assay. A total of 213 nasal samples from cattle with signs of respiratory tract disease were then collected for performance evaluation of the established platform, proving that the method has good specificity and sensitivity. The surveillance data suggested that BVDV and BoHV-1 infections are the dominant cause of BRDC in the herd, whereas the detection rate of IDV, BIPV3, and BRSV is relatively lower. In summary, the established assay provides technical support for rapid clinical detection of BRDC associated viral pathogens to guide the formulation of BRDC prevention and control measures.
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Zhao B, Gong QL, Feng HF, Wang Q, Shi JF, Song YH, Liu F, Shi K, Zong Y, Du R, Li JM. Brucellosis prevalence in yaks in China in 1980-2019: A systematic review and meta-analysis. Prev Vet Med 2021; 198:105532. [PMID: 34844124 DOI: 10.1016/j.prevetmed.2021.105532] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 11/01/2021] [Accepted: 11/02/2021] [Indexed: 11/24/2022]
Abstract
In the Qinghai-Tibet Plateau of China, the yak is an animal of particular economic interest, which provides protein and income for herders in daily life. Brucellosis is a bacterial disease that can infect humans and animals, including yaks. It can damage the yak reproductive system, causing miscarriage and orchitis. At the same time, brucellosis threatens the health of herders. We performed this meta-analysis using R software to explore the combined prevalence and risk factors of brucellosis in yak in China. Variability was assessed by the I2 statistic and Cochran Q statistic. We identified 52 publications of related research from four databases (Wanfang Data, VIP Chinese Journal Database, China National Knowledge Infrastructure, and of PubMed). The pooled prevalence of yak brucellosis was 8.39 %. Prevalence was highest in Southwestern China (11.1 %). The point estimate of brucellosis in yak from 2012 to 2016 was the highest (11.47 %). The point estimate of age ≤ 12 months (1.44 %) was lower than that of age > 12 months (15.6 %). This study shows that yak brucellosis is serious, and its incidence is higher than before 2012. We recommend carrying out large-scale yak brucellosis investigations in Western China and conducting comprehensive testing planning. The detection of brucellosis in adult animals should be strengthened to reduce the economic loss caused by brucellosis to herders and to improve public health.
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Affiliation(s)
- Bo Zhao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China; College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Qing-Long Gong
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Hai-Feng Feng
- Animal Health Supervision Institute of Jilin Province, Changchun, Jilin Province 130061, PR China
| | - Qi Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Jun-Feng Shi
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Yu-Hao Song
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Fei Liu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Kun Shi
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Ying Zong
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China
| | - Rui Du
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China.
| | - Jian-Ming Li
- College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, Jilin Province 130118, PR China.
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11
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Chen Y, Wang Y, Robertson ID, Hu C, Chen H, Guo A. Key issues affecting the current status of infectious diseases in Chinese cattle farms and their control through vaccination. Vaccine 2021; 39:4184-4189. [PMID: 34127292 DOI: 10.1016/j.vaccine.2021.05.078] [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: 03/10/2021] [Revised: 05/13/2021] [Accepted: 05/20/2021] [Indexed: 10/21/2022]
Abstract
Infectious diseases can have a major impact on the profitability of the cattle industry. To determine the occurrence of bovine infectious diseases in China and the adoption of vaccination to control them, a national-wide questionnaire and focus group meeting were performed. The questionnaire was administered to 189 farmers including 93 dairy farmers, 80 beef cattle farmers and 16 yak farmers. Since it is compulsory to vaccinate cattle against foot and mouth disease, the coverage of vaccination to this disease was the highest (100% of dairy and yak farms and 92.5% of beef farms). However, the implementation of vaccination against other diseases was vastly different between cattle types with less than 50% of farms adopting vaccination (except brucellosis vaccine in yak farms). In a focus group meeting of 36 cattle experts on the key issues affecting the frequency of infectious diseases in cattle and the vaccination practices adopted on Chinese cattle farms, the lack of effective vaccines against single or multiple pathogens, a lack of tools for the early and correct diagnosis of disease, difficulties in licensing novel vaccines and diagnostic agents, low efficiency in disseminating knowledge on diseases and control products to producers were identified as key issues. In conclusion, except for FMD, the control of most infectious diseases of cattle in China requires improving. Development of improved control measures and diagnostic tests along with the development and implementation of educational material for producers on cattle diseases should be given priority.
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Affiliation(s)
- Yingyu Chen
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, China; College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China; Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China
| | - Yu Wang
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, China; College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China; Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China
| | - Ian D Robertson
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China; Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China; School of Veterinary Medicine, Murdoch University, 6150, Australia.
| | - Changmin Hu
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, China; College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China; Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China
| | - Huanchun Chen
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, China; College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China; Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China
| | - Aizhen Guo
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, China; College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China; Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China.
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12
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Moore DP, Cantón GJ, Louge Uriarte EL. Editorial: Infectious Diseases Affecting Reproduction and the Neonatal Period in Cattle. Front Vet Sci 2021; 8:679007. [PMID: 33969046 PMCID: PMC8100021 DOI: 10.3389/fvets.2021.679007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 03/22/2021] [Indexed: 11/23/2022] Open
Affiliation(s)
- Dadín P Moore
- Animal Production Department, Institute of Innovation for Agricultural Production and Sustainable Development (IIPADS), Balcarce, Argentina.,Faculty of Agricultural Sciences, National University of Mar del Plata, Mar del Plata, Argentina
| | - Germán J Cantón
- Animal Production Department, National Institute of Agricultural Technology (INTA), Balcarce, Argentina
| | - Enrique L Louge Uriarte
- Animal Production Department, National Institute of Agricultural Technology (INTA), Balcarce, Argentina
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13
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Guo T, Zhang J, Chen X, Wei X, Wu C, Cui Q, Hao Y. Investigation of viral pathogens in cattle with bovine respiratory disease complex in Inner Mongolia, China. Microb Pathog 2020; 153:104594. [PMID: 33157218 DOI: 10.1016/j.micpath.2020.104594] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/30/2020] [Accepted: 10/26/2020] [Indexed: 11/25/2022]
Abstract
As a multifactor disease, the bovine respiratory disease complex (BRDC) causes high morbidity and mortality that is devastating to the cattle industry. To assess viral infections in beef cattle suffering from respiratory diseases in Inner Mongolia, 302 nasal swabs and serum samples were randomly collected from cattle with mild respiratory symptoms between March 2018 and May 2019. Our results showed that the rate of RT-PCR results positive for nucleic acids of viral pathogens in 6 cities was between 54 and 80%.The rates of bovine viral diarrhea virus (BVDV), bovine herpesvirus 1 (BHV-1), bovine parainfluenza virus type 3(BPIV3), and bovine respiratory syncytial virus(BRSV)infections were 44.70% (135/302), 24.83% (75/302), 5.63% (17/302), and 6.95% (21/302),respectively. There are also 8.94% (27/302) of samples were positive for BVDV and BHV-1, and 3.97% (12/302) of samples were positive for BPIV3 and BRSV. In addition, the RT-PCR products were sequenced, and phylogenetic analysis based on these sequences was performed. The results indicated that: a) all of the BVDV isolates were BVDV-1 and were classified as BVDV-1a (66.67%) and BVDV-1b (33.33%); b) all of the BHV-1 isolates were classified as subtype 1.1; 44.44% of the isolates were closely related to modified live viral vaccine strains, and 55.56% of the isolates were closer to epidemic strains; c) all of the BPIV3 isolates belonged to BPIV3c; d) all of the BRSV isolates were classified into subgroup III. It is suggested that an important cause of respiratory diseases for beef cattle is viral infection, and phylogenetic analysis can help us choose the proper strain to develop a vaccine.
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Affiliation(s)
- Ting Guo
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, Hohhot, China.
| | - Jianhua Zhang
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, Hohhot, China
| | - Xindi Chen
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, Hohhot, China
| | - Xin Wei
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, Hohhot, China
| | - Chunxia Wu
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, Hohhot, China
| | - Qi Cui
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, Hohhot, China
| | - Yongqing Hao
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, Hohhot, China.
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14
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Qi Y, Ni HB, Chen X, Li S. Seroprevalence of highly pathogenic avian influenza (H5N1) virus infection among humans in mainland China: A systematic review and meta-analysis. Transbound Emerg Dis 2020; 67:1861-1871. [PMID: 32259345 DOI: 10.1111/tbed.13564] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 03/21/2020] [Accepted: 03/23/2020] [Indexed: 12/28/2022]
Abstract
Although the effective transmission of the H5N1 virus from humans to humans has yet to be further observed, humans are at increased risk of a pandemic caused by H5N1. In order to fully evaluate the seroprevalence and risk factor of highly pathogenic avian influenza A (H5N1) virus infection among in mainland China, we performed a systematic review and meta-analysis. In this review, we searched literature on the seroprevalence of H5N1 infection among humans in mainland China from 1 January 1997 to 20 October 2018 in English and Chinese databases, including PubMed, Google scholar, Cochrane library, Clinical Trial, VIP, CNKI and WanFang database. We made a selection according to the title and the abstract of paper, and then, we excluded duplicated literature, and data incomplete literature according to the exclusion criteria we formulated. Finally, we extracted how many humans have H5N1 infection from the obtained studies to establish the seroprevalence of H5N1 infection among humans in mainland China. A total of 56 studies (including data of 35,159 humans) were compliant with our criteria. In China, the overall seroprevalence of H5N1 infection among humans was 2.45% (862/35,159), while the seroprevalence of H5N1 infection among humans from central China was 7.32% (213/2,911), higher than those in other regions of China. The seroprevalence of H5N1 infection was associated with test method, sampling time and demographic characteristics of humans. However, there was no significant difference in the effect of gender on the seroprevalence of H5N1 among humans in China. The purpose of this review was to better understand the real infection rate of H5N1 virus among humans and evaluate the potential risk factors for the zoonotic spread of H5N1 virus to humans. Sufficient epidemiological data are important to explore and understand the prevalent status of AIVs throughout the country and to disease control.
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Affiliation(s)
- Yanping Qi
- College of Animal Science, Anhui Province Key Laboratory of Animal nutritional regulation and health, Anhui Science and Technology University, Fengyang, China
| | - Hong-Bo Ni
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Xuelong Chen
- College of Animal Science, Anhui Province Key Laboratory of Animal nutritional regulation and health, Anhui Science and Technology University, Fengyang, China
| | - Shenghe Li
- College of Animal Science, Anhui Province Key Laboratory of Animal nutritional regulation and health, Anhui Science and Technology University, Fengyang, China
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15
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Zhou Y, Li X, Ren Y, Hou X, Liu Y, Wei S, Dai G, Meng Y, Hu L, Liu Z, Jia W, Zhu Z, Wu R. Phylogenetic analysis and characterization of bovine herpesvirus-1 in cattle of China, 2016-2019. INFECTION GENETICS AND EVOLUTION 2020; 85:104416. [PMID: 32535159 DOI: 10.1016/j.meegid.2020.104416] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/26/2020] [Accepted: 06/07/2020] [Indexed: 02/08/2023]
Abstract
Bovine herpesvirus type 1 (BoHV-1) is one of the most critical pathogens in cattle and is prevalent in China. BoHV-1 is divided into two gene types, BoHV-1.1 and 1.2, which are further differentiated into two subtypes, BoHV-1.2a and 1.2b. However, the phylogenetic analysis of BoHV-1 isolates has not been reported in China. To perform a molecular epidemiological survey based on isolates from cattle in China, 102 lung tissue samples of calves under ten months of age with respiratory disease (BRD) that died from 2016 to 2019 in China were used to isolate BoHV-1 with Madin-Darby bovine kidney (MDBK) cells. Part of the BoHV-1 isolates were applied to the phylogenetic analysis based on the region of the glycoprotein C (gC) gene of BoHV-1. Thirty BoHV-1 isolates were obtained, and the gC gene of 13 isolates was amplified by polymerase chain reaction (PCR) methods and sequenced. The result of the phylogenetic analysis according to the 451-nucleotide portion of the gC gene found that all of 13 isolates belonged to the BoHV-1.2b gene subtype, but these isolates had located two different phylogenetic tree branches. The gC gene sequence homology of isolates in group1 was higher with a reference strain of BoHV-1.2b EVI14 up to 98.0-100%, while in group 2, this was higher with reference strain BoHV-1.2b B589 up to 97.8-99.8%. The deduced amino acid sequence of gC from isolates in group 2 had two amino acid mutations with interference strain BoHV-1.2b K22 or BoHV-1.1 COOPER. The cytopathic effects (CPEs) of BoHV-1 isolates in group 2 were ulcered on the centration like a volcano on MDBK cell, and different from traditional CPEs of BoHV-1. Overall, BoHV-1.2b seems to be the primary strain of BoHV-1 in cattle in China and is also a critical cause of BRD. These BoHV-1.2b isolates had significant genetic variations.
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Affiliation(s)
- Yulong Zhou
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China; Daqing Center of Inspection and Testing for Agricultural Products Ministry of Agriculture, Daqing 163319, China; Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, Daqing 163319, China
| | - Xuyang Li
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Yachao Ren
- Harbin Medical University-Daqing, Daqing 163319, China
| | - Xilin Hou
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Yu Liu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Sumin Wei
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Guanli Dai
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Ye Meng
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Linjie Hu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Zhihui Liu
- Heilongjiang Blue Fusion Biological Information Co. Ltd., Harbin 150000, China
| | - Weiqiang Jia
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Zhanbo Zhu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China.
| | - Rui Wu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China.
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16
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Wathes DC, Oguejiofor CF, Thomas C, Cheng Z. Importance of Viral Disease in Dairy Cow Fertility. ENGINEERING (BEIJING, CHINA) 2020; 6:26-33. [PMID: 32288965 PMCID: PMC7104734 DOI: 10.1016/j.eng.2019.07.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 01/08/2019] [Accepted: 04/18/2019] [Indexed: 05/09/2023]
Abstract
Many viral diseases are endemic in cattle populations worldwide. The ability of many viruses to cross the placenta and cause abortions and fetal malformations is well understood. There is also significant evidence that viral infections have additional actions in dairy cows, which are reflected in reduced conception rates. These effects are, however, highly dependent on the time at which an individual animal first contracts the disease and are less easy to quantify. This paper reviews the evidence relating to five viruses that can affect fertility, together with their potential mechanisms of action. Acute infection with non-cytopathic bovine viral diarrhea virus (BVDV) in mid-gestation increases abortion rates or causes the birth of persistently infected calves. BVDV infections closer to the time of breeding can have direct effects on the ovaries and uterine endometrium, which cause estrous cycle irregularities and early embryo mortality. Fertility may also be reduced by BVDV-induced immunosuppression, which increases the susceptibility to bacterial infections. Bovine herpesvirus (BHV)-1 is most common in pre-pubertal heifers, and can slow their growth, delay breeding, and increase the age at first calving. Previously infected animals subsequently show reduced fertility. Although this may be associated with lung damage, ovarian lesions have also been reported. Both BHV-1 and BHV-4 remain latent in the host following initial infection and may be reactivated later by stress, for example associated with calving and early lactation. While BHV-4 infection alone may not reduce fertility, it appears to act as a co-factor with established bacterial pathogens such as Escherichia coli and Trueperella pyogenes to promote the development of endometritis and delay uterine repair mechanisms after calving. Both Schmallenberg virus (SBV) and bluetongue virus (BTV) are transmitted by insect vectors and lead to increased abortion rates and congenital malformations. BTV-8 also impairs the development of hatched blastocysts; furthermore, infection around the time of breeding with either virus appears to reduce conception rates. Although the reductions in conception rates are often difficult to quantify, they are nevertheless sufficient to cause economic losses, which help to justify the benefits of vaccination and eradication schemes.
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Affiliation(s)
| | - Chike F Oguejiofor
- Faculty of Veterinary Medicine, University of Nigeria, Nsukka 410001, Nigeria
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Hao F, Mao L, Li W, Li J, Yang L, Zhang W, Jiang J, Sun M, Xie X, Liu M. Epidemiological investigation and genomic characterization of Caprine herpesvirus 1 from goats in China. INFECTION GENETICS AND EVOLUTION 2019; 79:104168. [PMID: 31899234 DOI: 10.1016/j.meegid.2019.104168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/25/2019] [Accepted: 12/30/2019] [Indexed: 12/29/2022]
Abstract
Caprine herpesvirus 1 (CpHV-1) is a member of the alpha subfamily of herpersviruses, and is responsible for genital lesions and latent infections in goat population worldwide. Here, we describe goats suffered severe respiratory diseases caused by alphaherpesvirus during 2013 to 2014 in Jiangsu province of China. CpHV-1 was detected out by PCR with a prevalence of 21.1% (40/190), among which three novel CpHV-1 strains were firstly identified and isolated in China. Phylogenetic analysis of glycoprotein B (gB) gene revealed that these new viruses were closely clustered with CpHV-1 strain E/CH. The isolate JSHA1405 was further studied by transmission electron microscopy, and displayed typical herpesvirus morphology. Then, for the first time, complete viral genome of JSHA1405 was sequenced by Illumina Hiseq and third-generation sequencing technology. The viral genome is 134,617 bp in length and the genome characteristics were deeply analyzed. 69 open reading frames were predicted and annotated, which was less than that of BoHV-1. Phylogenetic analysis of the complete genome revealed that JSHA1405 was classified into the same branch with previous CpHV-1 strains as well. Moreover, the pathogenicity test is further evidence that JSHA1405 strain induced obvious symptoms of high fever and nasal discharge in infected goats, consistent with clinical manifestations. This is the first report about isolation and identification of CpHV-1 in China and the first characterization of CpHV-1 genome structure. The research also provides a basis for understanding the characteristics, viral genome and pathogenicity of the virus.
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Affiliation(s)
- Fei Hao
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing 210014, China
| | - Li Mao
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
| | - Wenliang Li
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Jizong Li
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
| | - Leilei Yang
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
| | - Wenwen Zhang
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
| | - Jieyuan Jiang
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China.
| | - Min Sun
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
| | - Xing Xie
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
| | - Maojun Liu
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
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