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Hou C, Ni R, Zhao L, Tian M, Long X, Lei C, Wang H, Yang X. Recombinant chimpanzee adenovirus expressing spike protein protects chickens against infectious bronchitis virus. Int J Biol Macromol 2024; 255:128105. [PMID: 37981286 DOI: 10.1016/j.ijbiomac.2023.128105] [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: 09/06/2023] [Revised: 10/16/2023] [Accepted: 11/13/2023] [Indexed: 11/21/2023]
Abstract
Infectious bronchitis (IB) is an acute and highly contagious disease caused by avian infectious bronchitis virus (IBV), resulting in significant economic losses in the global poultry industry. In this study, we utilized a replication-incompetent adenovirus vector derived from chimpanzees for the first time to express the S gene of IBV. The adenovirus was successfully rescued and demonstrated convenient production, good growth performance, and stability on HEK293 A cells. Morphologically, the recombinant adenovirus (named PAD-S) appeared normal under transmission electron microscopy, and efficient expression of the exogenous gene was confirmed through immunofluorescence analysis and immunoblotting. Administration of PAD-S via ocular and nasal routes induced a strong immune response in the chicken population, as evidenced by specific antibody and cytokine measurements. PAD-S was unable to replicate within chickens and showed low pre-existing immunity, demonstrating high safety and environmental friendliness. The robust immune response triggered by PAD-S immunization effectively suppressed viral replication in various tissues, alleviating clinical symptoms and tissue damage, thus providing complete protection against viral challenges in the chicken population. In conclusion, this study successfully developed an IBV candidate vaccine strain that possesses biosafety, high protective efficacy, and ease of production.
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Affiliation(s)
- Chengyao Hou
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Ruiqi Ni
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Lijun Zhao
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Mingyue Tian
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Xuelin Long
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Changwei Lei
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Hongning Wang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Xin Yang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China.
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Chacón JL, Chacón RD, Sánchez-Llatas CJ, Morín JG, Astolfi-Ferreira CS, Piantino Ferreira AJ. Antigenic and molecular characterization of isolates of the Brazilian genotype BR-I (GI-11) of infectious bronchitis virus supports its recognition as BR-I serotype. Avian Pathol 2023; 52:323-338. [PMID: 37477586 DOI: 10.1080/03079457.2023.2228725] [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: 04/17/2023] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 07/22/2023]
Abstract
The antigenic and molecular characteristics of BR-I infectious bronchitis viruses (IBVs) isolated from Brazil are reported. IBVs isolated from commercial flocks with different clinical manifestations between 2003 and 2019 were submitted to antigenic and molecular characterization. The complete S1 glycoprotein gene of 11 field isolates was amplified and sequenced. The virus neutralization (VN) test showed 94.75% neutralization with a BR-I isolate and 30% or less against other worldwide reference strains. The nucleotide and amino acid sequence analyses revealed 84.3-100% and 83.5-100% identity among them, respectively. The identity values ranged from 57.1 to 82.6% for nucleotides and from 46.6-84.4% for amino acids compared with those of other genotypes. By phylogenetic tree analysis, the Brazilian isolates were branched into the BR-I genotype (lineage GI-11), which was differentiated from foreign reference strains. Selective pressure analyses of BR-I IBVs revealed evolution under purifying selection (negative pressure) for the complete S1 gene but four specific sites (87, 121, 279, and 542) under diversifying selection (positive pressure). Profiles of cleavage sites and potential N-glycosylation sites differed from those of other genotypes. The low molecular relationship among the Brazilian viruses and foreign serotypes was concordant with the VN test results. The low antigenic relatedness (ranging from 5.3-30% between Brazilian genotype BR-I and reference IBV serotypes of North America, Europe, and Asia) indicates that the BR-I genotype is a different serotype, referred to for the first time and hereafter as serotype BR-I. RESEARCH HIGHLIGHTSStrains of the BR-I genotype presented robust antigenic and molecular similarity.BR-I strains evolved under purifying selection mode (negative pressure).The BR-I genotype originated in Brazil and dispersed to other countries.BR-I genotype viruses can be referred to as the BR-I serotype.
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Affiliation(s)
- Jorge L Chacón
- Laboratory of Avian Diseases, Department of Pathology, School of Veterinary Medicine, University of São Paulo, São Paulo, Brazil
| | - Ruy D Chacón
- Laboratory of Avian Diseases, Department of Pathology, School of Veterinary Medicine, University of São Paulo, São Paulo, Brazil
| | - Christian J Sánchez-Llatas
- Faculty of Biology, Department of Genetics, Physiology, and Microbiology, Complutense University of Madrid, Madrid, Spain
| | - Jaime G Morín
- Department of Natural History, NTNU University Museum, Norwegian University of Science and Technology, Trondheim, Norway
| | - Claudete S Astolfi-Ferreira
- Laboratory of Avian Diseases, Department of Pathology, School of Veterinary Medicine, University of São Paulo, São Paulo, Brazil
| | - Antonio J Piantino Ferreira
- Laboratory of Avian Diseases, Department of Pathology, School of Veterinary Medicine, University of São Paulo, São Paulo, Brazil
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Villalobos-Agüero RA, León B, Zamora-Sanabria R, Karkashian-Córdoba J. Molecular characterization of the S1 gene in GI-17 and GI-13 type isolates of avian infectious bronchitis virus (IBV) in Costa Rica, from 2016 to 2019. Virusdisease 2022; 33:84-95. [PMID: 35493753 PMCID: PMC9005586 DOI: 10.1007/s13337-022-00762-2] [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: 11/26/2021] [Accepted: 02/26/2022] [Indexed: 11/29/2022] Open
Abstract
Avian infectious bronchitis is one of the most important respiratory diseases affecting poultry production worldwide. The etiological agent of this disease is the avian infectious bronchitis virus (IBV). We analyzed 14 isolates of IBV obtained from poultry farms in Costa Rica, from 2016 through 2019. We sequenced the S1 region of the genome and the sequences obtained were submitted to GenBank. Phylogenetic analyses showed that the isolates obtained during 2016-2017 belong to the GI-17 lineage and are related to the Georgia 13-type Ga-13/14255/14 and CK/CR/1160/16 variants, with a 96.90-100% nucleotide sequence identity and a 92.25-100% amino acid sequence identity. The main differences were detected in the RBD and HVR-3 regions, where a series of mutations eliminate an N-glycosylation site in 10 out of 11 isolates. The isolates obtained during 2018-2019 belong to the GI-13 lineage and are closely related to the 4/91 vaccine variant, with over 98% sequence identity at the nucleotide and amino acids levels. Variations were detected in the RBD and HVR regions, with a possible N-glycosylation site detected in isolate CK/CR/0632/19. These results indicate that a GA13-like pathogenic variant circulated during the 2016-2017 period and that the 4/91 variant was detected after the introduction of the vaccine. The variations shown in both the GA13-like and 4/91 isolates examined, reveal the need for continuous surveillance of IBV in Costa Rica, to detect new variants that may be introduced to the country or develop during outbreaks. This information is highly relevant for vaccination planning and disease management programs. Supplementary Information The online version contains supplementary material available at 10.1007/s13337-022-00762-2.
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Affiliation(s)
| | - Bernal León
- Laboratorio Nacional de Servicios Veterinarios (LANASEVE), Servicio Nacional de Salud Animal, Heredia, Costa Rica
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Gong H, Ni R, Qiu R, Wang F, Yan W, Wang K, Li H, Fu X, Chen L, Lei C, Wang HN, Yang X. Evaluation of a novel recombinant strain of infectious bronchitis virus emerged from three attenuated live vaccine strains. Microb Pathog 2022; 164:105437. [DOI: 10.1016/j.micpath.2022.105437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/11/2022] [Accepted: 02/01/2022] [Indexed: 11/16/2022]
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Sun L, Tang X, Qi J, Zhang C, Zhao J, Zhang G, Zhao Y. Two newly isolated GVI lineage infectious bronchitis viruses in China show unique molecular and pathogenicity characteristics. INFECTION GENETICS AND EVOLUTION 2021; 94:105006. [PMID: 34293479 DOI: 10.1016/j.meegid.2021.105006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/29/2021] [Accepted: 07/15/2021] [Indexed: 10/20/2022]
Abstract
During 2016 to 2020, GVI-1 type infectious bronchitis virus (IBV) strains were sporadically reported across China, indicating a new epidemic trend of the virus. Here we investigated the molecular characteristics and pathogenicity of two newly isolated GVI-1 type IBV virus strains (CK/CH/TJ1904 and CK/CH/NP2011) from infected chicken farms in China. Genetic evolution analysis of the S1 gene showed the highest homology with the GVI-1 representative strain, TC07-2. Phylogenetic analysis and recombination analysis of the virus genomes indicated that newly isolated strains in China may be independently derived from recombination events that occurred between GI-19 and GI-22 strains and early GVI-1 viruses. Interestingly, unlike the deduced parental GI-19 or GI-22 strains, CK/CH/TJ1904 and CK/CH/NP2011 showed affinity for the trachea rather than the kidney and were less pathogenic. This difference may be because of recombination events that occurred during the long co-existence of the GVI-1 viruses with prevalent GI-19 and GI-22 strains. Considering the new trend, it is very important to permanently monitor circulating strains and to develop new vaccines to counteract emerging new-type IBVs.
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Affiliation(s)
- Lu Sun
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Xinyan Tang
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Jingyi Qi
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Chunyan Zhang
- Heilongjiang Hegang Center for Animal Disease Control and Prevention, Hegang 154106, China
| | - Jing Zhao
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Guozhong Zhang
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Ye Zhao
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
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Yan W, Qiu R, Wang F, Fu X, Li H, Cui P, Zhai Y, Li C, Zhang L, Gu K, Zuo L, Lei C, Wang H, Yang X. Genetic and pathogenic characterization of a novel recombinant avian infectious bronchitis virus derived from GI-1, GI-13, GI-28, and GI-19 strains in Southwestern China. Poult Sci 2021; 100:101210. [PMID: 34116353 PMCID: PMC8192866 DOI: 10.1016/j.psj.2021.101210] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 11/19/2022] Open
Abstract
Avian infectious bronchitis (IB), caused by avian infectious bronchitis virus (IBV), is an acute and highly contagious disease that is extremely harmful to the poultry industry throughout the world. The cross-using of different attenuated live vaccine strains has led to the occurrence of diverse IBV serotypes. In this study, we isolated an IBV strain from a chicken farm in southwest China and designated it CK/CH/SCMY/160315. Construction of a phylogenetic tree based on full S1 gene sequence analysis suggested that CK/CH/SCMY/160315 bears similarity to GI-28, and further comparison of S1 amino acid residues revealed that CK/CH/SCMY/160315 showed mutations and deletions in many key positions between LDT3-A and other GI-28 reference strains. Importantly, CK/CH/SCMY/160315 was identified as a novel recombinant virus derived from live attenuated vaccine strains H120 (GI-1), 4/91 (GI-13), LDT3-A (GI-28), and the field strain LJL/08-1 (GI-19), identifying at least 5 recombination sites in both structural and accessory genes. Pathogenicity analysis indicated that CK/CH/SCMY/160315 caused listlessness, sneezing, huddling, head shaking, and increased antibody levels in the inoculated chickens. To further describe pathogenicity of this novel strain, we assessed viral load in different tissues and conducted hematoxylin and eosin (HE) staining of the trachea, lungs and kidneys. Our results provide evidence for the continuing evolution of IBV field strains via genetic recombination and mutation, leading to outbreaks in the vaccinated chicken populations in China.
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Affiliation(s)
- Wenjun Yan
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province; Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Science Sichuan University, Chengdu 610064, China
| | - Rongbin Qiu
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Fuyan Wang
- Sichuan Sundaily Farm Ecological Food Co., Ltd., Mianyang 621010, China
| | - Xue Fu
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province; Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Science Sichuan University, Chengdu 610064, China
| | - Hao Li
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province; Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Science Sichuan University, Chengdu 610064, China
| | - Pengfei Cui
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province; Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Science Sichuan University, Chengdu 610064, China
| | - Yaru Zhai
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province; Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Science Sichuan University, Chengdu 610064, China
| | - Chun Li
- Sichuan Animal Disease Control Center, Chengdu, 610041, China
| | - Lan Zhang
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province; Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Science Sichuan University, Chengdu 610064, China
| | - Kui Gu
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province; Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Science Sichuan University, Chengdu 610064, China
| | - Lei Zuo
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province; Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Science Sichuan University, Chengdu 610064, China
| | - Changwei Lei
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province; Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Science Sichuan University, Chengdu 610064, China
| | - Hongning Wang
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province; Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Science Sichuan University, Chengdu 610064, China
| | - Xin Yang
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province; Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Science Sichuan University, Chengdu 610064, China.
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Sariol A, Perlman S. Lessons for COVID-19 Immunity from Other Coronavirus Infections. Immunity 2020; 53:248-263. [PMID: 32717182 PMCID: PMC7359787 DOI: 10.1016/j.immuni.2020.07.005] [Citation(s) in RCA: 225] [Impact Index Per Article: 56.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 12/13/2022]
Abstract
A key goal to controlling coronavirus disease 2019 (COVID-19) is developing an effective vaccine. Development of a vaccine requires knowledge of what constitutes a protective immune response and also features that might be pathogenic. Protective and pathogenic aspects of the response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are not well understood, partly because the virus has infected humans for only 6 months. However, insight into coronavirus immunity can be informed by previous studies of immune responses to non-human coronaviruses, common cold coronaviruses, and SARS-CoV and Middle East respiratory syndrome coronavirus (MERS-CoV). Here, we review the literature describing these responses and discuss their relevance to the SARS-CoV-2 immune response.
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Affiliation(s)
- Alan Sariol
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA 52242, USA
| | - Stanley Perlman
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA 52242, USA; Department of Microbiology and Immunology, University of Iowa, Iowa City, IA 52242, USA.
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8
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Abstract
A key goal to controlling coronavirus disease 2019 (COVID-19) is developing an effective vaccine. Development of a vaccine requires knowledge of what constitutes a protective immune response and also features that might be pathogenic. Protective and pathogenic aspects of the response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are not well understood, partly because the virus has infected humans for only 6 months. However, insight into coronavirus immunity can be informed by previous studies of immune responses to non-human coronaviruses, common cold coronaviruses, and SARS-CoV and Middle East respiratory syndrome coronavirus (MERS-CoV). Here, we review the literature describing these responses and discuss their relevance to the SARS-CoV-2 immune response.
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Affiliation(s)
- Alan Sariol
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA 52242, USA
| | - Stanley Perlman
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA 52242, USA; Department of Microbiology and Immunology, University of Iowa, Iowa City, IA 52242, USA.
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Ennaji Y, Khataby K, Ennaji MM. Infectious Bronchitis Virus in Poultry: Molecular Epidemiology and Factors Leading to the Emergence and Reemergence of Novel Strains of Infectious Bronchitis Virus. EMERGING AND REEMERGING VIRAL PATHOGENS 2020. [PMCID: PMC7150180 DOI: 10.1016/b978-0-12-814966-9.00003-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Infectious bronchitis virus (IBV) is a coronavirus that causes an acute and highly contagious disease in chickens. The virus can cause substantial economic losses throughout the poultry industry worldwide. It can affect the upper respiratory tract and the reproductive tract, and some strains can cause nephritis. The causative agent IBV is an RNA virus with great ability for mutation and recombination, thus capable of generating new virus strains that are difficult to control. There are many IBV strains found worldwide, including the Massachusetts, 4/91, D274, and QX-like strains that can be grouped under the classic or variant serotypes. In addition, new types of the virus continue to arise due to mutations and recombination events in the viral genome and even more factors, making this virus difficult to identify and extremely difficult to control. Surveillance and identification of IBV types are extremely important for control of the disease and the advancement of molecular methods has aided in this pursuit. Genetic typing of IBV, which involves reverse transcription polymerase chain reaction amplification and sequence analysis of the S1 glycoprotein gene, has revolutionized diagnosis and identification of this virus by making it possible to type and compare the relatedness of a large number of virus isolates in a short period of time. Several conventional and molecular diagnostic methods have been described for the diagnosis of IB in chickens. “All-in/all-out” operations of rearing along with good biosafety measures form the basis of prevention, whereas vaccination forms the backbone of IB control program. Both live and inactivated (oil emulsified) conventional vaccines are available. The new generation vaccines (recombinant and vector-based) developed against locally prevailing IBV strains may be more helpful and avoid the reversion of virulence in live vaccine viruses.
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Rohaim MA, El Naggar RF, Hamoud MM, Bazid AHI, Gamal AM, Laban SE, Abdel-Sabour MA, Nasr SAE, Zaki MM, Shabbir MZ, Zahran OK, Munir M. Emergence and genetic analysis of variant pathogenic 4/91 (serotype 793/B) infectious bronchitis virus in Egypt during 2019. Virus Genes 2019; 55:720-725. [PMID: 31372921 PMCID: PMC7088710 DOI: 10.1007/s11262-019-01693-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 07/23/2019] [Indexed: 11/17/2022]
Abstract
Infectious bronchitis virus (IBV) affects both vaccinated and unvaccinated flocks worldwide, with a significant impact on the poultry industry. The aim of the present study is to characterize an emerging variant pathogenic IBV originating from field outbreaks in vaccinated Egyptian layer flock. Samples were collected from disease-suspected flock with a history of administration of live and inactivated IBV vaccines (Ma5 type). Virus propagation in embryonated chicken eggs (ECEs), after three successive passages, revealed typical IBV lesions such as curling and dwarfism. The reported isolate was identified by a real-time reverse transcriptase PCR assay targeting nucleocapsid (N) gene and, further characterized by full-length spike (S1) gene sequencing. Phylogenetic analysis revealed clustering of the isolated virus within 4/91 genotype of GI-13 lineage. Deduced amino acid sequences identity revealed 75-76% and 88-90% similarity with the currently used classic (H120, Ma5, and M41) and variant vaccine strains (4/91 and CR88) in Egypt, respectively. Recombination analysis gave an evidence for distinct patterns of origin for the studied isolate providing another example of intra-genotypic recombination among IBVs and the first example of recombination within the GI-13 lineage in the Egyptian field. The studied isolate (IBV/CK/EG/Fadllah-10/2019) emerged as a result of recombination between the variant group (Egy/var I genotype, GI-23 lineage) as a major parent and the CR88 variant vaccine strain (4/91 genotype, GI-13 lineage) as minor parent. Our data suggest that both mutation and recombination may be contributing to the emergence of IBV variants which ascertain the importance of disease monitoring in vaccinated flocks as well as re-appropriation for the current vaccine strategies.
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Affiliation(s)
- Mohammed A Rohaim
- Department of Virology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster, LA1 4YG, UK.
| | - Rania F El Naggar
- Department of Virology, Faculty of Veterinary Medicine, University of Sadat City, Sadat, 32897, Egypt
| | - Mohamed M Hamoud
- Department of Poultry and Rabbit Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Abdel-Hamid I Bazid
- Department of Virology, Faculty of Veterinary Medicine, University of Sadat City, Sadat, 32897, Egypt
| | - Abdulrhman M Gamal
- Department of Animal Hygiene and Veterinary Management, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Samah E Laban
- Department of Animal Hygiene and Veterinary Management, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | | | - Shimaa A E Nasr
- Department of Animal Hygiene and Veterinary Management, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Manal M Zaki
- Department of Animal Hygiene and Veterinary Management, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Muhammad Z Shabbir
- Quality Operations Laboratory, University of Veterinary and Animal Sciences, Lahore, 54600, Pakistan
| | - Osama K Zahran
- Department of Animal Hygiene and Veterinary Management, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Muhammad Munir
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster, LA1 4YG, UK
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A Rohaim M, F El Naggar R, M Helal A, M Bayoumi M, A El-Saied M, A Ahmed K, Z Shabbir M, Munir M. Genetic Diversity and Phylodynamics of Avian Coronaviruses in Egyptian Wild Birds. Viruses 2019; 11:E57. [PMID: 30646528 PMCID: PMC6356246 DOI: 10.3390/v11010057] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 01/08/2019] [Accepted: 01/10/2019] [Indexed: 12/25/2022] Open
Abstract
Avian coronaviruses (ACoVs) are continuously evolving and causing serious economic consequences in the poultry industry and around the globe. Owing to their extensive genetic diversity and high mutation rates, controlling ACoVs has become a challenge. In this context, the potential contribution of wild birds in the disease dynamics, especially in domesticated birds, remains largely unknown. In the present study, five hundred fifty-seven (n = 557) cloacal/fecal swabs were collected from four different wild bird species from eight Egyptian governorates during 2016 and a total of fourteen positive isolates were used for phylodynamics and evolutionary analysis. Genetic relatedness based on spike (S1) gene demonstrated the clustering of majority of these isolates where nine isolates grouped within Egy/variant 2 (IS/885 genotype) and five isolates clustered within Egy/variant 1 (IS/1494/06 genotype). Interestingly, these isolates showed noticeable genetic diversity and were clustered distal to the previously characterized Egy/variant 1 and Egy/variant 2 in Egyptian commercial poultry. The S1 gene based comparison of nucleotide identity percentages revealed that all fourteen isolates reported in this study were genetically related to the variant GI-23 lineage with 92⁻100% identity. Taken together, our results demonstrate that ACoVs are circulating in Egyptian wild birds and highlight their possible contributions in the disease dynamics. The study also proposes that regular monitoring of the ACoVs in wild birds is required to effectively assess the role of wild birds in disease spread, and the emergence of ACoVs strains in the country.
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Affiliation(s)
- Mohammed A Rohaim
- Virology Department, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt.
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster LA1 4YG, UK.
| | - Rania F El Naggar
- Virology Department, Faculty of Veterinary Medicine, Sadat University, Sadat 32897, Egypt.
| | - Ahmed M Helal
- Central Lab for Evaluation of Veterinary Biologics, Abbasia 11381, Cairo, Egypt.
| | - Mahmoud M Bayoumi
- Virology Department, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt.
| | - Mohamed A El-Saied
- Pathology Department, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt.
| | - Kawkab A Ahmed
- Pathology Department, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt.
| | - Muhammad Z Shabbir
- Quality Operations Laboratory, University of Veterinary and Animal Sciences, Lahore 54600, Pakistan.
| | - Muhammad Munir
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster LA1 4YG, UK.
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Graham RL, Deming DJ, Deming ME, Yount BL, Baric RS. Evaluation of a recombination-resistant coronavirus as a broadly applicable, rapidly implementable vaccine platform. Commun Biol 2018; 1:179. [PMID: 30393776 PMCID: PMC6206136 DOI: 10.1038/s42003-018-0175-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 09/19/2018] [Indexed: 12/15/2022] Open
Abstract
Emerging and re-emerging zoonotic viral diseases are major threats to global health, economic stability, and national security. Vaccines are key for reducing coronaviral disease burden; however, the utility of live-attenuated vaccines is limited by risks of reversion or repair. Because of their history of emergence events due to their prevalence in zoonotic pools, designing live-attenuated coronavirus vaccines that can be rapidly and broadly implemented is essential for outbreak preparedness. Here, we show that coronaviruses with completely rewired transcription regulatory networks (TRNs) are effective vaccines against SARS-CoV. The TRN-rewired viruses are attenuated and protect against lethal SARS-CoV challenge. While a 3-nt rewired TRN reverts via second-site mutation upon serial passage, a 7-nt rewired TRN is more stable, suggesting that a more extensively rewired TRN might be essential for avoiding growth selection. In summary, rewiring the TRN is a feasible strategy for limiting reversion in an effective live-attenuated coronavirus vaccine candidate that is potentially portable across the Nidovirales order.
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Affiliation(s)
- Rachel L Graham
- Department of Epidemiology, The University of North Carolina at Chapel Hill, 2107 McGavran-Greenberg, CB 7435, Chapel Hill, NC, 27599, USA
| | - Damon J Deming
- Department of Epidemiology, The University of North Carolina at Chapel Hill, 2107 McGavran-Greenberg, CB 7435, Chapel Hill, NC, 27599, USA
- Department of Microbiology and Immunology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- Food and Drug Administration, 10933 New Hampshire Avenue, Bldg 22, Rm 6170, Silver Spring, MD, 20993, USA
| | - Meagan E Deming
- Department of Microbiology and Immunology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- University of Maryland Medical Center, Department of Medicine, Division of Infectious Disease, Institute of Human Virology, 725 West Lombard Street, Room 211A, Baltimore, MD, 21201, USA
| | - Boyd L Yount
- Department of Epidemiology, The University of North Carolina at Chapel Hill, 2107 McGavran-Greenberg, CB 7435, Chapel Hill, NC, 27599, USA
| | - Ralph S Baric
- Department of Epidemiology, The University of North Carolina at Chapel Hill, 2107 McGavran-Greenberg, CB 7435, Chapel Hill, NC, 27599, USA.
- Department of Microbiology and Immunology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
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13
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Laconi A, Listorti V, Franzo G, Cecchinato M, Naylor C, Lupini C, Catelli E. Molecular characterization of whole genome sequence of infectious bronchitis virus 624I genotype confirms the close relationship with Q1 genotype. Transbound Emerg Dis 2018; 66:207-216. [PMID: 30126059 PMCID: PMC7168539 DOI: 10.1111/tbed.13000] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 07/16/2018] [Accepted: 08/12/2018] [Indexed: 11/28/2022]
Abstract
Infectious Bronchitis virus (IBV) genotype Q1 was detected for the first time in China in 1996, and then spread worldwide. The first report of Q1 genotype in Italy occurred in 2011 and a deep molecular investigation of a Q1 isolated in Italy in 2013 has led to speculation regarding the origin of this genotype. Phylogenetic analysis of the S1 sequence of a Q1 Italian strain revealed a close relationship with sequences of the 624I strains circulating in Italy in the early 1990s and this led to the idea that 624I was an ancestor of the Q1 genotype. Despite the fact that most heterogeneity of IBVs occurs in the S1 gene, the sequence analysis of this gene alone was not sufficient to confirm or deny this hypothesis. In the present study, an Italian 624I (gammaCoV/AvCov/Ck/Italy/IP14425/96) was fully sequenced for the first time and compared to all available complete Q1 genome sequences. This analysis confirmed the genetic correlation between GammaCoV/AvCov/Ck/Italy/IP14425/96 and Q1 strains, suggesting a common origin between 624I and Q1 genotypes.
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Affiliation(s)
- Andrea Laconi
- Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.,Department of Infection Biology, University of Liverpool, Leahurst Campus, Liverpool, Cheshire, UK
| | - Valeria Listorti
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell'Emilia, BO, Italy
| | - Giovanni Franzo
- Department of Animal Medicine, Production and Health, University of Padua, Legnaro, PD, Italy
| | - Mattia Cecchinato
- Department of Animal Medicine, Production and Health, University of Padua, Legnaro, PD, Italy
| | - Clive Naylor
- Department of Infection Biology, University of Liverpool, Leahurst Campus, Liverpool, Cheshire, UK
| | - Caterina Lupini
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell'Emilia, BO, Italy
| | - Elena Catelli
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell'Emilia, BO, Italy
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14
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Charlton Hume HK, Lua LHL. Platform technologies for modern vaccine manufacturing. Vaccine 2017; 35:4480-4485. [PMID: 28347504 PMCID: PMC7115529 DOI: 10.1016/j.vaccine.2017.02.069] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 02/21/2017] [Accepted: 02/23/2017] [Indexed: 10/29/2022]
Abstract
Improved understanding of antigenic components and their interaction with the immune system, as supported by computational tools, permits a sophisticated approach to modern vaccine design. Vaccine platforms provide an effective tool by which strategically designed peptide and protein antigens are modularized to enhance their immunogenicity. These modular vaccine platforms can overcome issues faced by traditional vaccine manufacturing and have the potential to generate safe vaccines, rapidly and at a low cost. This review introduces two promising platforms based on virus-like particle and liposome, and discusses the methodologies and challenges.
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Affiliation(s)
- Hayley K Charlton Hume
- The University of Queensland, Protein Expression Facility, St Lucia, QLD 4072, Australia
| | - Linda H L Lua
- The University of Queensland, Protein Expression Facility, St Lucia, QLD 4072, Australia.
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15
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Ball C, Awad F, Hutton S, Forrester A, Baylis M, Ganapathy K. Infectious bronchitis vaccine virus detection and part-S1 genetic variation following single or dual inoculation in broiler chicks. Avian Pathol 2017; 46:309-318. [PMID: 27917677 DOI: 10.1080/03079457.2016.1268675] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
An investigation was undertaken of the extent of genetic variation occurring within infectious bronchitis virus (IBV) vaccine strains following vaccination of day-old broiler chicks. Chicks were divided into seven groups, with two groups receiving single Massachusetts (Mass) vaccinations while the other four were inoculated with combinations of different IBV serotypes; Mass, 793B, D274 and Arkansas (Ark). The remaining group was maintained as an unvaccinated control. Following vaccination, swabs and tissues collected at intervals were pooled and RNA was extracted for detection of IBV by reverse transcription polymerase chain reaction. Positive amplicons were sequenced for the part-S1 gene and compared to the original vaccine strain sequences. Single nucleotide polymorphisms, amino acid variations and hydrophobicity changes were identified and recorded for each sampling point. A total of 106 single nucleotide polymorphisms were detected within 28 isolates. The average single nucleotide polymorphism counts of swab isolates were greater than those found in tissue samples. This translated into 64 amino acid changes; however only six resulted in a change to the hydrophobicity properties. All hydrophobic alterations occurred within swab isolates and the majority were recovered at 3 days post vaccination suggesting such changes to be detrimental to early virus survival. Nucleotide deletions were seen only in the group given the combination of Mass and Ark. Of the 16 sequenced samples in this group, 13 contained the same AAT deletion at position 1033 1035 in the Ark strains. Findings presented in this study demonstrate alteration in the S1 nucleotide sequence following co-administration of live IBV vaccines.
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Affiliation(s)
- Christopher Ball
- a Institute of Infection and Global Health, University of Liverpool, Leahurst Campus , Cheshire , UK
| | - Faez Awad
- a Institute of Infection and Global Health, University of Liverpool, Leahurst Campus , Cheshire , UK.,b Faculty of Veterinary Medicine , University of Omar Al-Mukhtar , Al-Bayda , Libya
| | - Sally Hutton
- a Institute of Infection and Global Health, University of Liverpool, Leahurst Campus , Cheshire , UK
| | - Anne Forrester
- a Institute of Infection and Global Health, University of Liverpool, Leahurst Campus , Cheshire , UK
| | - Matthew Baylis
- a Institute of Infection and Global Health, University of Liverpool, Leahurst Campus , Cheshire , UK.,c NIHR Health Protection Research Unit in Emerging and Zoonotic Infections, University of Liverpool , Liverpool , UK
| | - Kannan Ganapathy
- a Institute of Infection and Global Health, University of Liverpool, Leahurst Campus , Cheshire , UK
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16
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Bayry J. Coronaviridae: Infectious Bronchitis Virus. EMERGING AND RE-EMERGING INFECTIOUS DISEASES OF LIVESTOCK 2017. [PMCID: PMC7122401 DOI: 10.1007/978-3-319-47426-7_5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Zanaty A, Naguib MM, El-Husseiny MH, Mady W, Hagag N, Arafa AS. The sequence of the full spike S1 glycoprotein of infectious bronchitis virus circulating in Egypt reveals evidence of intra-genotypic recombination. Arch Virol 2016; 161:3583-3587. [DOI: 10.1007/s00705-016-3042-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 08/29/2016] [Indexed: 01/04/2023]
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18
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Leghari RA, Fan B, Wang H, Bai J, Zhang L, Abro SH, Jiang P. Full-length genome sequencing analysis of avian infectious bronchitis virus isolate associated with nephropathogenic infection. Poult Sci 2016; 95:2921-2929. [PMID: 27566728 PMCID: PMC7127410 DOI: 10.3382/ps/pew259] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 04/10/2016] [Accepted: 06/26/2016] [Indexed: 11/20/2022] Open
Abstract
Infectious bronchitis virus (IBV) produces infectious bronchitis (IB) disease in poultry worldwide. In spite of proper vaccinations against the IBV, new IBV strains are continually emerging worldwide. In this study, a new highly virulent nephropathogenic IBV strain named CK/CH/XDC-2/2013 was identified from a vaccinated flock with clinical signs of IB in the Jiangsu province of China. The full-length genome sequence of the isolate was 27,714 nucleotides long, and the genome was organized similarly to classical IBV strains. Minimum divergence, phylogenetic analysis, and distance matrix of the genome showed that the CK/CH/XDC-2/2013 isolate had the highest similarity to the IBV BJ strain. The spike glycoprotein (S) gene had the greatest similarity to the nephropathogenic BJ strain and showed an 8 amino acid insertion (YSNGNSDV) at 73 to 80 sites and 3 amino acid deletion at sites 126 to 128 compared to the IBV vaccine strains. A recombination analysis of the S gene showed that the new isolate evolved from the IBV BJ strain and the KM91 vaccine strain. An animal challenge experiment showed a mortality of 60 to 80% in early-age chickens by different inoculation routes. Pathological examinations of the kidneys revealed inflammation, distention with uric acid deposits, and tubular degeneration. It indicated that the CK/CH/XDC-2/2013 isolate has robust kidney tissue tropism, and new nephropathogenic IBV strains are continuously evolving in China.
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Affiliation(s)
- R A Leghari
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.,Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University Tandojam, 70050, Pakistan
| | - B Fan
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - H Wang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - J Bai
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - L Zhang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - S H Abro
- Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University Tandojam, 70050, Pakistan
| | - P Jiang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
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19
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The establishment and characteristics of cell-adapted IBV strain H120. Arch Virol 2016; 161:3179-87. [PMID: 27558123 DOI: 10.1007/s00705-016-3008-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 08/02/2016] [Indexed: 12/23/2022]
Abstract
Avian infectious bronchitis virus is an important pathogen in poultry worldwide. Vaccination is the only effective way to prevent and control IBV infection. H120, one of the safest vaccine strains, which has been used worldwide as a primary vaccine, cannot adapt to passaged cells, which severely restricts the quality of the vaccine. Based on the reverse genetics of our previous research work, we constructed the recombinant R-H120-Beaudette-p65(S) strain by replacing the complete spike gene of H120 with the corresponding spike gene from the Beaudette p65 strain. Some biological characteristics, including replication kinetics, virulence and immunological properties of R-H120-Beaudette-p65(S) have been evaluated. The results showed that biological characteristics of R-H120-Beaudette-p65(S), such as replication kinetics in embryonated chicken eggs (ECEs) and embryo virulence, were similar to those of H120. In addition, R-H120-Beaudette-p65(S) could induce a similar antibody titre and provide up to 80 % immune protection in chickens challenged with the M41 strain. These results indicate that R-H120-Beaudette-p65(S) has the potential for further development as a cell-adapted vaccine.
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20
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Yao S, Ou C, Liu X, Wang X, Yao Z, Liu J. Isolation of a novel serotype strain of infectious bronchitis virus ZZ2004 from ducks in China. Virus Genes 2016; 52:660-70. [PMID: 27164844 PMCID: PMC7089278 DOI: 10.1007/s11262-016-1352-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 05/03/2016] [Indexed: 01/03/2023]
Abstract
In chickens, the infectious bronchitis virus (IBV) often causes respiratory distress, a decrease in egg production, poor egg quality, and occasional nephritis. However, ZZ2004, a Chinese isolate of IBV, was obtained from ducks with clinical growth suppression and mild respiratory symptoms that had been reared with chickens in the central region of China. Virus isolation, virus neutralization testing, and RT-PCR were employed to identify the causative pathogen, while sequence alignment was used to analyze gene variations of the S1 subunit and M genes. The results showed that the ducks were infected with IBV due to the emergence of a dwarfing phenotype and the death of embryos between 48 and 144 h post-inoculation. RT-PCR also confirmed the presence of the expected fragment sizes of the S1 subunit and M genes by RT-PCR. Meanwhile, the results of the virus neutralization test indicated that the strains of JX/99/01, GD, SAIBK, LDT3 showed cross-reactivity with the ZZ2004 isolate, and hardly any cross-neutralization of IBV ZZ2004 was observed with the strains of M41, H120, Gray, Holte, or Aust-T. Phylogenetic analysis suggested that there were large differences between ZZ2004 and other IBV reference strains on the S1 subunit. Meanwhile, homologies in the nucleotide and amino acid sequences of the M gene of IBV ZZ2004 were 86.9–92.0 % and 91.1–93.9 %, respectively, compared with 35 other IBV reference strains derived from different regions. This result revealed that there were conspicuous variations among the selected strains. Furthermore, the results showed that the prevalent strains of IBV in ducks had no antigen homology with the vaccine strains widely used in China except the LDT3-strain, making it urgent to explore and develop new IBV vaccines.
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Affiliation(s)
- Sixin Yao
- College of Animal Science, Henan Institute of Science and Technology, Hualan Street, Xinxiang, 453003, Henan, PR China
| | - Changbo Ou
- College of Animal Science, Henan Institute of Science and Technology, Hualan Street, Xinxiang, 453003, Henan, PR China
| | - Xingyou Liu
- College of Animal Science, Henan Institute of Science and Technology, Hualan Street, Xinxiang, 453003, Henan, PR China. .,School of Life Science and Technology, Xinxiang University, Xinxiang, 453003, PR China.
| | - Xianwen Wang
- College of Animal Science, Henan Institute of Science and Technology, Hualan Street, Xinxiang, 453003, Henan, PR China
| | - Zonghui Yao
- College of Animal Science, Henan Institute of Science and Technology, Hualan Street, Xinxiang, 453003, Henan, PR China
| | - Jinjing Liu
- Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, PR China
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21
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Genome sequence and origin analyses of the recombinant novel IBV virulent isolate SAIBK2. Virus Genes 2016; 52:509-20. [PMID: 27108998 PMCID: PMC7088859 DOI: 10.1007/s11262-016-1337-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 04/05/2016] [Indexed: 01/16/2023]
Abstract
Recombination between infectious bronchitis viruses (IBVs), together with point mutations, insertions, and deletions, is thought to be responsible for the emergence of new IBV variants. SAIBK2 is a nephropathogenic strain isolated from layer flocks vaccinated with live attenuated H120 vaccine in Sichuan province, China in 2011. SAIBK2 causes severe kidney lesions and results in 50 % mortality in 30-day-old specific-pathogen-free chickens (with a dose of 105 EID50/0.1 mL SAIBK2 per chicken). The complete genome of SAIBK2 consists of 27669 nucleotides, excluding the poly-A tail at the 3′ end. SAIBK2 has the highest identity to YX10 in terms of complete genome. Phylogenetic analysis of complete sequence showed that SAIBK2 belongs to the most dominant genotype in China. Comparison and recombination analyses with other IBV strains revealed that SAIBK2 may originate from recombination events among a YX10-, a YN-, and a Mass-like strain. Furthermore, whole gene 5 and parts of nsp 3, nsp 4, nsp 16, and N genes are involved in the recombination events, and the uptake of these regions from YN and Mass strains by SAIBK2 may increase its replication efficiency and be responsible for its increased virulence in specific-pathogen-free chickens.
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22
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Xu G, Liu XY, Zhao Y, Chen Y, Zhao J, Zhang GZ. Characterization and analysis of an infectious bronchitis virus strain isolated from southern China in 2013. Virol J 2016; 13:40. [PMID: 26955947 PMCID: PMC4784446 DOI: 10.1186/s12985-016-0497-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 03/03/2016] [Indexed: 11/25/2022] Open
Abstract
Background Infectious bronchitis is a severe disease caused by infectious bronchitis virus (IBV) that affects fowl flocks worldwide. The understanding of the mechanisms involved in IBV evolution and variation would provide important theoretical basis for prevention and control of the disease in the future. Methods IBV strain GD was isolated from southern China in 2013 and the complete genome sequencing and phylogenetic analysis were performed. Results The genome of approximately 27,680 nt comprised six genes, with insertions and mutations in most of the structural genes. The S1 gene showed the highest identity to strain TW2575/98 isolated in Taiwan, and was distantly related to the H120 vaccine strain. Phylogenetic analysis showed that the S1 gene of strain GD was also related to that of TW-type strains. Recombination analysis indicated that strain GD was a chimera whose putative parental strains belonged to the QX- and TW-type subgroups. Conclusions An increasing number of TW-type strains have been isolated from China in recent years, which is in agreement with our findings, suggesting the emergence and increased prevalence of new TW-type strains in southern China.
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Affiliation(s)
- Gang Xu
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, People's Republic of China
| | - Xiao-Yu Liu
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, People's Republic of China
| | - Ye Zhao
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, People's Republic of China
| | - Yang Chen
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, People's Republic of China
| | - Jing Zhao
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, People's Republic of China
| | - Guo-Zhong Zhang
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian, Beijing, 100193, People's Republic of China.
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23
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Yang X, Zhou Y, Li J, Fu L, Ji G, Zeng F, Zhou L, Gao W, Wang H. Recombinant infectious bronchitis virus (IBV) H120 vaccine strain expressing the hemagglutinin-neuraminidase (HN) protein of Newcastle disease virus (NDV) protects chickens against IBV and NDV challenge. Arch Virol 2016; 161:1209-16. [PMID: 26873815 PMCID: PMC7087005 DOI: 10.1007/s00705-016-2764-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 01/17/2016] [Indexed: 01/20/2023]
Abstract
Infectious bronchitis (IB) and Newcastle disease (ND) are common viral diseases of chickens, which are caused by infectious bronchitis virus (IBV) and Newcastle disease virus (NDV), respectively. Vaccination with live attenuated strains of IBV-H120 and NDV-LaSota are important for the control of IB and ND. However, conventional live attenuated vaccines are expensive and result in the inability to differentiate between infected and vaccinated chickens. Therefore, there is an urgent need to develop new efficacious vaccines. In this study, using a previously established reverse genetics system, we generated a recombinant IBV virus based on the IBV H120 vaccine strain expressing the haemagglutinin-neuraminidase (HN) protein of NDV. The recombinant virus, R-H120-HN/5a, exhibited growth dynamics, pathogenicity and viral titers that were similar to those of the parental IBV H120, but it had acquired hemagglutination activity from NDV. Vaccination of SPF chickens with the R-H120-HN/5a virus induced a humoral response at a level comparable to that of the LaSota/H120 commercial bivalent vaccine and provided significant protection against challenge with virulent IBV and NDV. In summary, the results of this study indicate that the IBV H120 strain could serve as an effective tool for designing vaccines against IB and other infectious diseases, and the generation of IBV R-H120-HN/5a provides a solid foundation for the development of an effective bivalent vaccine against IBV and NDV.
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Affiliation(s)
- Xin Yang
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, School of Life Science, Sichuan University, Chengdu, 610064, China
| | - Yingshun Zhou
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, School of Life Science, Sichuan University, Chengdu, 610064, China
| | - Jianan Li
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, School of Life Science, Sichuan University, Chengdu, 610064, China
| | - Li Fu
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, School of Life Science, Sichuan University, Chengdu, 610064, China
| | - Gaosheng Ji
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, School of Life Science, Sichuan University, Chengdu, 610064, China
| | - Fanya Zeng
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, School of Life Science, Sichuan University, Chengdu, 610064, China
| | - Long Zhou
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, School of Life Science, Sichuan University, Chengdu, 610064, China
| | - Wenqian Gao
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, School of Life Science, Sichuan University, Chengdu, 610064, China
| | - Hongning Wang
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, School of Life Science, Sichuan University, Chengdu, 610064, China.
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24
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Tan L, Liao Y, Fan J, Zhang Y, Mao X, Sun Y, Song C, Qiu X, Meng C, Ding C. Prediction and identification of novel IBV S1 protein derived CTL epitopes in chicken. Vaccine 2015; 34:380-6. [PMID: 26620841 DOI: 10.1016/j.vaccine.2015.11.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 10/30/2015] [Accepted: 11/12/2015] [Indexed: 01/22/2023]
Abstract
Infectious bronchitis virus (IBV) is a major pathogen common in the poultry industry. Broad cytotoxic T lymphocyte (CTL) response against IBV is one of the crucial factors that help to control viral replication. Spike glycoproteins on the surface of the IBV virion harbor major T cell epitopes. In this study, based on the peptide-binding motifs of chicken MHC I molecules for the BF2*4, BF2*12, BF2*15, and BF2*19 haplotypes, potential CTL epitopes were predicted using S1 proteins from different IBV strains. Twenty-one peptides were predicted to be potential CTL epitopes; they were manually synthesized and the CTL responses to them tested in vitro. Spleen lymphocytes were collected from specific-pathogen free (SPF) chicken that had been immunized with the S1 protein expression plasmid, pV-S1, and were stimulated by the synthesized peptides. IFN-γ secretion and CD8(+) T cell proliferation in chickens were tested by ELISpot array and flow cytometry, respectively. Four epitopes (P8SRIQTATDP, P9SRNATGSQP, P18GAYAVVNV, and P19SRIQTATQP) were identified to stimulate CD8(+) T cell proliferation and IFN-γ secretion, indicating their efficacy as CTL epitopes in chicken. Poly-CTL-epitope DNA vaccine (pV-S1T) was constructed by inserting nucleotide sequences encoding the P8, P9, P18, and P19 CTL epitopes into the pVAX1 vector. Chickens were vaccinated with either pV-S1, pV-S1T, or pVAX1 and the protection efficacy was analyzed, revealing that ninety percent of chickens immunized with pV-S1T were protected after challenge with 10(6) ELD50 of IBV, demonstrating that these novel CTL epitopes were effective against IBV challenge. This study provides a new method to screen virus CTL epitopes in chicken and to develop poly-CTL-epitope DNA vaccines.
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Affiliation(s)
- Lei Tan
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Ying Liao
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Jin Fan
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Yuqiang Zhang
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Xiang Mao
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Yingjie Sun
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Cuiping Song
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Xusheng Qiu
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Chunchun Meng
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Chan Ding
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China.
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Bande F, Arshad SS, Hair Bejo M, Moeini H, Omar AR. Progress and challenges toward the development of vaccines against avian infectious bronchitis. J Immunol Res 2015; 2015:424860. [PMID: 25954763 PMCID: PMC4411447 DOI: 10.1155/2015/424860] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Revised: 03/20/2015] [Accepted: 03/23/2015] [Indexed: 12/03/2022] Open
Abstract
Avian infectious bronchitis (IB) is a widely distributed poultry disease that has huge economic impact on poultry industry. The continuous emergence of new IBV genotypes and lack of cross protection among different IBV genotypes have been an important challenge. Although live attenuated IB vaccines remarkably induce potent immune response, the potential risk of reversion to virulence, neutralization by the maternal antibodies, and recombination and mutation events are important concern on their usage. On the other hand, inactivated vaccines induce a weaker immune response and may require multiple dosing and/or the use of adjuvants that probably have potential safety risks and increased economic burdens. Consequently, alternative IB vaccines are widely sought. Recent advances in recombinant DNA technology have resulted in experimental IB vaccines that show promise in antibody and T-cells responses, comparable to live attenuated vaccines. Recombinant DNA vaccines have also been enhanced to target multiple serotypes and their efficacy has been improved using delivery vectors, nanoadjuvants, and in ovo vaccination approaches. Although most recombinant IB DNA vaccines are yet to be licensed, it is expected that these types of vaccines may hold sway as future vaccines for inducing a cross protection against multiple IBV serotypes.
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Affiliation(s)
- Faruku Bande
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
- Department of Veterinary Services, Ministry of Animal Health and Fisheries Development, PMB 2109, Usman Faruk Secretariat, Sokoto 840221, Sokoto State, Nigeria
| | - Siti Suri Arshad
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
| | - Mohd Hair Bejo
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
- Laboratory of Vaccine and Immunotherapeutics, Institute of Bioscience, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
| | - Hassan Moeini
- Department of Virus-Associated Tumours (F100), German Cancer Research Centre, Im Neuenheimer Feld 242, 69120 Heidelberg, Germany
| | - Abdul Rahman Omar
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
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26
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Expression of Avian Infectious Bronchitis Virus Multi-Epitope Based Peptide EpiC inLactococcus lactisfor Oral Immunization of Chickens. Biosci Biotechnol Biochem 2014; 76:1871-6. [DOI: 10.1271/bbb.120326] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Lactococcus lactisAnchoring Avian Infectious Bronchitis Virus Multi-Epitope Peptide EpiC Induced Specific Immune Responses in Chickens. Biosci Biotechnol Biochem 2014; 77:1499-504. [DOI: 10.1271/bbb.130157] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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28
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Zhou S, Tang M, Jiang Y, Chen X, Shen X, Li J, Dai Y, Zou J. Complete genome sequence of a novel infectious bronchitis virus strain circulating in China with a distinct S gene. Virus Genes 2014; 49:152-6. [PMID: 24682939 PMCID: PMC7089373 DOI: 10.1007/s11262-014-1063-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 03/14/2014] [Indexed: 11/30/2022]
Abstract
An avian infectious bronchitis virus (IBV) was isolated and identified from a commercial layer flock vaccinated with live attenuated H120 vaccine in China, designed as ck/CH/IBTZ/2012. To determine the origination and evolution of this isolated strain, we have carried out a complete genome sequencing of this strain. The genome of the ck/CH/IBTZ/2012 strain is 27,691 nucleotides in length and includes more than 10 open reading frames. Sequence comparison and phylogenetic analysis based on the full-length genomic sequences showed that ck/CH/IBTZ/2012 is mostly related to the LX4-like strains. However, sequence analysis based on the spike protein (S) gene sequences revealed that ck/CH/IBTZ/2012 possesses a distinct S gene setting it apart from the Massachusetts-type strains and LX4-type strains. The cleavage site within the spike protein (S) of ck/CH/IBTZ/2012 is HRRKR, which is different from the majority of the IBVs in China for their cleavage sits are HRRRR. Recombination analysis showed that ck/CH/IBTZ/2012 is a chimeric virus with a LX4-like backbone except S gene which might be from an unknown strain. Based on the data presented in this paper, it can be concluded that genetic changes due to adaptive evolution and recombination both contributed to the origin of strain ck/CH/IBTZ/2012, which belongs to a new genotype.
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Affiliation(s)
- Sheng Zhou
- Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou, 225125, Jiangsu, People's Republic of China,
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29
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Molecular characterization of major structural protein genes of avian coronavirus infectious bronchitis virus isolates in southern china. Viruses 2013; 5:3007-20. [PMID: 24304696 PMCID: PMC3967158 DOI: 10.3390/v5123007] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 11/09/2013] [Accepted: 11/27/2013] [Indexed: 11/29/2022] Open
Abstract
To gain comprehensive genetic information of circulating avian coronavirus infectious bronchitis virus (IBV) isolates in China, analysis of the phylogenetic tree, entropy of the amino acid sequences, and the positive selection as well as computational recombinations of S1, M and N genes of 23 IBV isolates was conducted in the present study. The phylogenetic trees based on the S1, M and N genes exhibited considerably different topology and the CK/CH/LSC/99I-type isolates were the predominant IBVs based on the phylogenetic analysis of S1 gene. Results of entropy of amino acid sequences revealed that the S1 gene had the largest variation; the M gene had less variation than the N gene. Positive selections were detected in not only S1 but also M and N gene proteins. In addition, five S1 gene recombinants between vaccine strain 4/91 and CK/CH/LSC/99I-type field isolate were confirmed. In conclusion, multiple IBV genotypes co-circulated; genetic diversity and positive selections existed in S1, M and N genes; 4/91 vaccine recombinants emerged in China. Our results show that field IBVs in China are continuing to evolve and vaccine strains may have an important role in the appearance of new IBV strains via recombination. In addition, the present study indicates that IBV evolution is driven by both generations of genetic diversity and selection.
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30
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Zhao F, Zou N, Wang F, Guo M, Liu P, Wen X, Cao S, Huang Y. Analysis of a QX-like avian infectious bronchitis virus genome identified recombination in the region containing the ORF 5a, ORF 5b, and nucleocapsid protein gene sequences. Virus Genes 2013; 46:454-64. [PMID: 23355072 PMCID: PMC7089284 DOI: 10.1007/s11262-013-0884-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Accepted: 01/16/2013] [Indexed: 01/03/2023]
Abstract
The complete genome of a QX-like infectious bronchitis virus (IBV) strain Sczy3 isolated recently in Sichuan was sequenced. The genome contains 27,695 nucleotides (nt), and possesses a genomic structure similar to other IBV strains. Sequence comparisons demonstrated that the Sczy3 genome had the highest nt sequence identity with QX-like IBVs and was most dissimilar to the Massachusetts type IBV. Differences in the sequences of genes present in the Sczy3 genome and other IBVs gene sequences were also identified. Phylogenic analysis showed that the entire genome and most of the Sczy3 genes were located in the same cluster as LX4. Recombination analysis showed that Sczy3 is a chimeric strain derived from LX4 (major parental sequence) and H120 (minor parental sequence) suggesting that recombination occurred in a region containing the 3' terminal 5a sequence (83 nt), the 5' terminal 5b sequence (222 nt), and the 5' terminal nucleocapsid protein gene sequence (132 nt). Mutations and intergenic recombination may have played an important role in the evolution of IBVs.
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Affiliation(s)
- Fangfang Zhao
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya’an, 625014 Sichuan People’s Republic of China
| | - Nianli Zou
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya’an, 625014 Sichuan People’s Republic of China
| | - Fuyan Wang
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya’an, 625014 Sichuan People’s Republic of China
| | - Mingping Guo
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya’an, 625014 Sichuan People’s Republic of China
| | - Ping Liu
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya’an, 625014 Sichuan People’s Republic of China
| | - Xintian Wen
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya’an, 625014 Sichuan People’s Republic of China
| | - Sanjie Cao
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya’an, 625014 Sichuan People’s Republic of China
| | - Yong Huang
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya’an, 625014 Sichuan People’s Republic of China
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31
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Zhou YS, Zhang Y, Wang HN, Fan WQ, Yang X, Zhang AY, Zeng FY, Zhang ZK, Cao HP, Zeng C. Establishment of reverse genetics system for infectious bronchitis virus attenuated vaccine strain H120. Vet Microbiol 2013; 162:53-61. [PMID: 22999521 PMCID: PMC7117355 DOI: 10.1016/j.vetmic.2012.08.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Revised: 08/12/2012] [Accepted: 08/13/2012] [Indexed: 12/11/2022]
Abstract
Infectious bronchitis virus (IBV) strain H120 was successfully rescued as infectious clone by reverse genetics. Thirteen 1.5-2.8 kb fragments contiguously spanning the virus genome were amplified and cloned into pMD19-T. Transcription grade complete length cDNA was acquired by a modified "No See'm" ligation strategy, which employed restriction enzyme Bsa I and BsmB I and ligated more than two fragments in one T4 ligase reaction. The full-length genomic cDNA was transcribed and its transcript was transfected by electroporation into BHK-21 together with the transcript of nucleocapsid gene. At 48 h post transfection, the medium to culture the transfected BHK-21 cells was harvested and inoculated into 10-days old SPF embryonated chicken eggs (ECE) to replicate the rescued virus. After passage of the virus in ECE five times, the rescued H120 virus (R-H120) was successfully recovered. R-H120 was subsequently identified to possess the introduced silent mutation site in its genome. Some biological characteristics of R-H120 such as growth curve, EID50 and HA titers, were tested and all of them were very similar to its parent strain H120. In addition, both R-H120 and H120 induced a comparable titer of HA inhibition (HI) antibody in immunized chickens and also provided up to 85% of immune protection to the chickens that were challenged with Mass41 IBV strain. The present study demonstrated that construction of infectious clone from IBV vaccine strain H120 is possible and IBV-H120 can be use as a vaccine vector for the development of novel vaccines through molecular recombination and the modified reverse genetics approach.
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Affiliation(s)
- Ying Shun Zhou
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - Yi Zhang
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
- Sichuan Center for Animal Disease Control and Prevention, Chengdu 610041, China
| | - Hong Ning Wang
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - Wen Qiao Fan
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - Xin Yang
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - An Yun Zhang
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - Fan Ya Zeng
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - Zhi Kun Zhang
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - Hai Peng Cao
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - Cheng Zeng
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
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32
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Mo ML, Hong SM, Kwon HJ, Kim IH, Song CS, Kim JH. Genetic diversity of spike, 3a, 3b and e genes of infectious bronchitis viruses and emergence of new recombinants in Korea. Viruses 2013; 5:550-67. [PMID: 23435235 PMCID: PMC3640513 DOI: 10.3390/v5020550] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 01/21/2013] [Accepted: 01/24/2013] [Indexed: 12/15/2022] Open
Abstract
The nucleotide sequences of a region including S1, S2, 3a, 3b and E genes of twenty-seven infectious bronchitis virus (IBV) isolates in Korea between 1990–2011 were determined and phylogenetic and computational recombination analyses were conducted. The sizes of coding regions of some genes varied among IBV isolates due to deletion or insertion of nucleotides; the nucleotide similarities of S1, S2, 3a, 3b and E genes among the 27 isolates were 75.9%–100.0%, 85%–100.0%, 64.0%–100.0%, 60.4%–100.0% and 83.1%–100.0%, respectively. According to phylogenetic analysis of S1 gene, the 27 isolates were divided into five genotypes, Mass, Korean-I (K-I), QX-like, KM91-like and New cluster 1. The phylogenetic trees based on the S2, 3a, 3b, E genes and S1-S2-3a-3b-E (S1-E) region nucleotide sequences did not closely follow the clustering based on the S1 sequence. The New cluster 1 prevalent during 2009 and 2010 was not found in 2011 but QX-like viruses became prevalent in 2011. The recombination analysis revealed two new S gene recombinants, 11036 and 11052 which might have been derived from recombinations between the New cluster 1 and QX-like viruses and between the K-I and H120 (vaccine) viruses, respectively. In conclusion, multiple IBV genotypes have co-circulated; QX-like viruses have recurred and new recombinants have emerged in Korea. This has enriched molecular epidemiology information of IBV and is useful for the control of IB in Korea.
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Affiliation(s)
- Mei-Lan Mo
- Laboratory of Avian Diseases, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea; E-Mails: (M.-L.M.); (S.-M.H.); (I.-H.K.)
- BK21 for Veterinary Science, Seoul National University, Seoul 151-742, Korea
- College of Animal Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530005, China
| | - Seung-Min Hong
- Laboratory of Avian Diseases, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea; E-Mails: (M.-L.M.); (S.-M.H.); (I.-H.K.)
| | - Hyuk-Joon Kwon
- Research Institute for Veterinary Science , College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea; E-Mail:
| | - Il-Hwan Kim
- Laboratory of Avian Diseases, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea; E-Mails: (M.-L.M.); (S.-M.H.); (I.-H.K.)
- BK21 for Veterinary Science, Seoul National University, Seoul 151-742, Korea
| | - Chang-Seon Song
- College of Veterinary Medicine, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea; E-Mail:
| | - Jae-Hong Kim
- Laboratory of Avian Diseases, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea; E-Mails: (M.-L.M.); (S.-M.H.); (I.-H.K.)
- Research Institute for Veterinary Science , College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea; E-Mail:
- BK21 for Veterinary Science, Seoul National University, Seoul 151-742, Korea
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +82-2-880-1288; Fax: +82-2-880-1233
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33
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Complete genome sequence of an infectious bronchitis virus chimera between cocirculating heterotypic strains. J Virol 2013; 86:13887-8. [PMID: 23166279 DOI: 10.1128/jvi.02722-12] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
To date, multiple serotypes and genotypes of infectious bronchitis virus (IBV) have been isolated and identified. In order to provide more information on the viral evolution of IBVs, a new virulent strain named GX-NN09032, isolated from Guangxi, China, in 2009, was sequenced, and phylogenetic and recombination analyses were conducted. Furthermore, potential recombination events associated with GX-NN09032 were found in four IBV strains, including GX-YL5, DY07, CK/CH/SD09/005, TC07-2. The present study suggested that GX-NN09032 might contribute to the emergence of modern IBV variants through recombination.
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Abro SH, Renström LHM, Ullman K, Belák S, Baule C. Characterization and analysis of the full-length genome of a strain of the European QX-like genotype of infectious bronchitis virus. Arch Virol 2012; 157:1211-5. [PMID: 22421962 DOI: 10.1007/s00705-012-1284-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2011] [Accepted: 02/13/2012] [Indexed: 11/30/2022]
Abstract
In recent years, strains of infectious bronchitis virus belonging to the QX-like genotype have been causing huge economic losses in commercial chicken flocks in different countries in Europe. In order to expand the knowledge of the molecular features of these viruses, we have sequenced and characterized the complete genome of European QX-like IBV strain CK/SWE/0658946/10, which was isolated in 2010 in Sweden. The genome is 27664 nucleotides in length, comprising six genes and 5' and 3' untranslated regions. The ORF1a, spike and nucleocapsid genes were under strong positive selective pressure that resulted in genetic diversity in relation to classical IBV isolates. The full-length genome of the CK/SWE/0658946/10 strain has the highest nucleotide sequence identity (93.18%) to ITA/90254/2005 and the lowest nucleotide identity (89.10%) to strain CQ04-1. Phylogenetic analysis of partial S1 gene sequences of IBV strains showed that the European QX-like genotype comprises strains that have been predominantly circulating in this continent for the past decade.
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Affiliation(s)
- Shahid Hussain Abro
- Department of Biomedical Sciences and Veterinary Public Health, Section of Virology, The Swedish University of Agricultural Sciences, Uppsala, Sweden.
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35
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Recombination in avian gamma-coronavirus infectious bronchitis virus. Viruses 2011; 3:1777-99. [PMID: 21994806 PMCID: PMC3187689 DOI: 10.3390/v3091777] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 08/24/2011] [Accepted: 09/05/2011] [Indexed: 12/27/2022] Open
Abstract
Recombination in the family Coronaviridae has been well documented and is thought to be a contributing factor in the emergence and evolution of different coronaviral genotypes as well as different species of coronavirus. However, there are limited data available on the frequency and extent of recombination in coronaviruses in nature and particularly for the avian gamma-coronaviruses where only recently the emergence of a turkey coronavirus has been attributed solely to recombination. In this study, the full-length genomes of eight avian gamma-coronavirus infectious bronchitis virus (IBV) isolates were sequenced and along with other full-length IBV genomes available from GenBank were analyzed for recombination. Evidence of recombination was found in every sequence analyzed and was distributed throughout the entire genome. Areas that have the highest occurrence of recombination are located in regions of the genome that code for nonstructural proteins 2, 3 and 16, and the structural spike glycoprotein. The extent of the recombination observed, suggests that this may be one of the principal mechanisms for generating genetic and antigenic diversity within IBV. These data indicate that reticulate evolutionary change due to recombination in IBV, likely plays a major role in the origin and adaptation of the virus leading to new genetic types and strains of the virus.
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36
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Ovchinnikova EV, Bochkov YA, Shcherbakova LO, Nikonova ZB, Zinyakov NG, Elatkin NP, Mudrak NS, Borisov AV, Drygin VV. Molecular characterization of infectious bronchitis virus isolates from Russia and neighbouring countries: identification of intertypic recombination in the S1 gene. Avian Pathol 2011; 40:507-14. [PMID: 21854179 DOI: 10.1080/03079457.2011.605782] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Infectious bronchitis virus (IBV) isolates recovered in Russia, Ukraine, and Kazakhstan between 2007 and 2010 were subjected to molecular characterization and compared with those isolated a decade ago. The IBV genome was detected in 202 out of 605 field samples from chickens with various clinical signs. Partial sequencing of the S1 gene revealed 153 vaccine strains and 49 field isolates of several genetic groups. Massachusetts, 793/B and D274 remained the predominant IBV genotypes along with QX, whereas B1648, Italy-02, Arkansas and variants accounted for about 12% of the total number. Three IBVs contained recombinant S1 gene sequences comprising genome fragments of QX-type field isolates and vaccine strains H120 (UKR/02/2009) or 4/91 (RF/03/2010), and vaccine strains H120 and D274 (RF/01/2010). The results of the present study showed a significant decline in prevalence of variant IBVs and a further spread of QX-type isolates in commercial chicken flocks in Russia as compared with the 1998 to 2002 data.
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