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Shi B, Yang G, Xiao Y, Qian K, Shao H, Xu M, Qin A. Long-Term Protection against Virulent Newcastle Disease Virus (NDV) in Chickens Immunized with a Single Dose of Recombinant Turkey Herpesvirus Expressing NDV F Protein. Vaccines (Basel) 2024; 12:604. [PMID: 38932333 PMCID: PMC11209589 DOI: 10.3390/vaccines12060604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 05/17/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024] Open
Abstract
Newcastle disease (ND) is a significant infectious disease in poultry, causing substantial economic losses in developing countries. To control ND, chickens must be vaccinated multiple times a year. In order to develop an improved vaccine that provides long-term protection, the F gene from genotype VII NDV was inserted into the herpesvirus of turkey (HVT) vaccine virus using CRISPR/Cas9-mediated NHEJ repair and Cre/LoxP technology. The immunogenicity and protective efficacy of the resulting recombinant vaccines were evaluated through antibody assays and virus challenge experiments. Two recombinant vaccines, rHVT-005/006-F and rHVT-US2-F, were generated, both exhibiting growth rates comparable with those of HVT in vitro and consistently expressing the F protein. One-day-old specific pathogen-free (SPF) chickens immunized with 2000 PFU/bird of either rHVT-005/006-F or rHVT-US2-F developed robust humoral immunity and were completely protected against challenge with the NDV F48E8 strain at 4 weeks post-vaccination (wpv). Furthermore, a single dose of these vaccines provided sustained protection for at least 52 wpv. Our study identifies rHVT-005/006-F and rHVT-US2-F as promising ND vaccine candidates, offering long-term protection with a single administration. Moreover, HVT-005/006 demonstrates promise for accommodating additional foreign genes, facilitating the construction of multiplex vaccines.
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Affiliation(s)
- Bin Shi
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Yangzhou University, No.12 East Wenhui Road, Yangzhou 225009, China
| | - Guifu Yang
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Yangzhou University, No.12 East Wenhui Road, Yangzhou 225009, China
| | - Yue Xiao
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Yangzhou University, No.12 East Wenhui Road, Yangzhou 225009, China
| | - Kun Qian
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Yangzhou University, No.12 East Wenhui Road, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, No.12 East Wenhui Road, Yangzhou 225009, China
| | - Hongxia Shao
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Yangzhou University, No.12 East Wenhui Road, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, No.12 East Wenhui Road, Yangzhou 225009, China
| | - Moru Xu
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Yangzhou University, No.12 East Wenhui Road, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, No.12 East Wenhui Road, Yangzhou 225009, China
| | - Aijian Qin
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Yangzhou University, No.12 East Wenhui Road, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, No.12 East Wenhui Road, Yangzhou 225009, China
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Al-Mubarak AIA, Al-Kubati AAG, Sheikh A, Abdelaziz AM, Hussen J, Kandeel M, Falemban B, Hemida MG. Detection of Avian Orthoavulavirus-1 genotypes VI.2.1 and VII.1.1 with neuro-viscerotropic tropism in some backyard pigeons (Columbidae) in Eastern Saudi Arabia. Front Vet Sci 2024; 11:1352636. [PMID: 38500603 PMCID: PMC10947193 DOI: 10.3389/fvets.2024.1352636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 02/06/2024] [Indexed: 03/20/2024] Open
Abstract
Introduction Avian orthoavulavirus-1 (AOAV1) has a wide host range, including domestic and wild birds. The present study aimed to identify the currently circulating AOAV1 strains from some outbreaks in some backyard pigeons in the eastern region of Saudi Arabia (ERSA). Methods Tracheal/cloacal swabs and tissue specimens were collected from eight backyards in Al-Ahsa, ERSA, between January 2021 and March 2023. Samples were tested for the presence of AOAV1 using commercial real-time RT-PCR. Part of the fusion gene was also amplified by gel-based RT-PCR, and the obtained amplicons were sequenced. Results and discussion AOAV1 was detected in samples from the eight flocks. The retrieved sequences from samples of 6/8 pigeon backyards are reported. Phylogenetic analysis based on the obtained sequences from these backyard pigeons showed the segregation of the obtained sequences in AOAV1 genotypes VI.2.1 and VII.1.1. Clinically, nervous manifestations were dominant in pigeons infected with both genotypes. Respiratory manifestations and significantly higher overall mortality rate were induced by genotype VI.2.1. The deduced amino acid sequences of the fusion protein cleavage site (FPCS) showed that all the detected isolates belong to velogenic strains. Differences in clinical profiles induced by the natural infection of pigeons with AOAV1 genotypes VI.2.1 and VII.1.1 were reported. The present findings highlight the potential roles of some backyard pigeons in the long-distance spread and cross-species transmission of the reported AOAVI genotypes. Further research is required to perform biotyping and pathotyping of the reported strains.
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Affiliation(s)
- Abdullah I. A. Al-Mubarak
- Department of Microbiology, College of Veterinary Medicine, King Faisal University, Al-Hofuf, Saudi Arabia
| | - Anwar A. G. Al-Kubati
- Department of Veterinary Medicine, Faculty of Agriculture and Veterinary Medicine, Thamar University, Dhamar, Yemen
| | - Abdullah Sheikh
- Camel Research Center, King Faisal University, Al Hofuf, Saudi Arabia
| | - Adel M. Abdelaziz
- Faculty of Veterinary Medicine, Veterinary Educational Hospital, Zagazig University, Zagazig, Egypt
- Veterinary Diagnostic Laboratory, Ministry of Environment, Water and Agriculture, Al-Ahsa, Saudi Arabia.
| | - Jamal Hussen
- Department of Microbiology, College of Veterinary Medicine, King Faisal University, Al-Hofuf, Saudi Arabia
| | - Mahmoud Kandeel
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Hofuf, Saudi Arabia
- Department of Pharmacology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Baraa Falemban
- Department of Microbiology, College of Veterinary Medicine, King Faisal University, Al-Hofuf, Saudi Arabia
| | - Maged Gomaa Hemida
- Department of Veterinary Biomedical Sciences, College of Veterinary Medicine, Long Island University, Brookville, NY, United States
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Vahidi V, Ebrahimi S, Akbari N, Jafari P. Molecular Identification and Phylogenetic Study Based on the Fusion Gene of Newcastle Disease Virus Isolated from Broiler Poultry Farms in Markazi Province, Iran. ARCHIVES OF RAZI INSTITUTE 2023; 78:1794-1803. [PMID: 38828167 PMCID: PMC11139395 DOI: 10.32592/ari.2023.78.6.1794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 06/29/2023] [Indexed: 06/05/2024]
Abstract
Newcastle disease (ND) is an economically significant and extremely spreadable viral illness affecting a wide variety of avian species. ND can rapidly spread within poultry farms and result in considerable economic losses for the global poultry industry. This disease is endemic in Iran, and despite intensive vaccination efforts in the poultry industry, outbreaks of ND occur unexpectedly. This study aimed to isolate the Newcastle disease virus (NDV) from poultry farms with breathing problems in Markazi province, Iran, and investigate the evolutionary relationship and molecular characteristics of the isolates during 2017-2019. To this end, tissue samples (lung, brain, and trachea) were taken from 42 broiler farms exhibiting respiratory symptoms. The samples were inoculated into 9-11-day-old embryonated eggs, and the virus was isolated from 20 (47.6%) of the 42 farms. Subsequently, RT-PCR was used to amplify partial fusion gene sequences from the new isolates. The amplified products were sequenced and compared phylogenetically to the standard pilot dataset (125 selected sequences) generated by the NDV consortium. As determined by phylogenetic analysis, all nine isolates belonged to subgenotype VII.1.1 of genotype VII and were highly similar to isolates from other parts of Iran and China. Moreover, all isolates possessed a polybasic cleavage site motif (112RRQKRF117), characteristic of virulent strains. Furthermore, the present isolates shared a high nucleotide identity (96%) with viruses previously isolated from other provinces of Iran, as determined by BLAST searches and multiple alignments. In addition, they shared a high degree of sequence similarity but were distinct from the existing NDV vaccines. Therefore, the genetic dissimilarity between current vaccine strains and circulating NDVs must be considered in vaccination programs.
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Affiliation(s)
- V Vahidi
- Department of Microbiology, Faculty of Science, Islamic Azad University, Arak, Iran
| | - S Ebrahimi
- Central branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Arak, Iran
| | - N Akbari
- Department of Microbiology, Faculty of Science, Islamic Azad University, Arak, Iran
| | - P Jafari
- Department of Microbiology, Faculty of Science, Islamic Azad University, Arak, Iran
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Chang Z, Dong X, Guan Z, Lu K, Chen X, Wei X, Guo H, Dang R, Wang J, Wang X, Xiao S, Yang Z, Liu H. Antigenic variation in hemagglutinin-neuraminidase of Newcastle disease virus isolated from Tibet, China. Vet Microbiol 2023; 285:109872. [PMID: 37690146 DOI: 10.1016/j.vetmic.2023.109872] [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: 06/26/2023] [Revised: 08/29/2023] [Accepted: 09/03/2023] [Indexed: 09/12/2023]
Abstract
Vaccines are widely used to prevent Newcastle disease virus (NDV). Under the pressure of immunization, NDVs with mutations among epitopes of F and HN protein were isolated, which indicates that the efficiency of vaccine may decrease in terms of preventing emerged NDV. However, the lack of evidences to support whether these mutations contribute to antigenic mutation and immune escape in NDV leading to the controversy that the matched vaccine is more effective than the mismatched vaccine. In this study, a genotype VII velogenic NDV strain (C22) was isolated from a vaccinated farm in Tibet, China. We found that this strain was close to NDV from east China, but it had a specific mutation (K138R) in one epitope (131DYIGGIGKE139) of HN protein. This mutation might change the interaction between amino acids in stalk-head link region of HN protein and then induce the specific antibody to worse recognize the C22 strain, but it did not alter viral virulence and growth ability. Then, the C22 strain was attenuated via modification of the F protein cleavage site to generate a matched vaccine. Comparing to a mismatched vaccine (LaSota), this matched vaccine showed advantages in inhibiting viral shedding and tissue damage. However, both vaccines induced chicken to generate similar level of neutralizing antibodies against C22, C22mut (R138K) and LaSota. These results suggest that the epitope mutation is insufficient to help NDV escaping neutralizing antibodies of vaccinated chicken, supporting that the merits of NDV matched vaccine are not totally related to humoral immunity.
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Affiliation(s)
- Zhengwu Chang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xiaoyu Dong
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Zhao Guan
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Kejia Lu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xi Chen
- College of Animal Husbandry and Veterinary Medicine, Southwest University for Nationalities, Chengdu 610041, China
| | - Xi Wei
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Hanwei Guo
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Ruyi Dang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Juan Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xinglong Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Sa Xiao
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Zengqi Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Haijin Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China.
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5
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Wang J, Lan Q, Zong X, Zhu G, Yang R, Yang G, Jiang Y, Yang W, Huang H, Shi C, Zeng Y, Wang N, Cao X, Wang C. Protection against genotype VII Newcastle disease virus by a mucosal subunit vaccination based on bacterium-like particles bearing the F or HN antigen. Int J Biol Macromol 2023:125293. [PMID: 37315677 DOI: 10.1016/j.ijbiomac.2023.125293] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 06/16/2023]
Abstract
Genotype VII Newcastle disease viruses (NDV) are still epidemic in many countries in chicken and waterfowl despite intensive vaccination with conventional live and inactivated vaccines. Here, we developed an effective mucosal subunit vaccine based on a bacterium-like particles (BLPs) delivery platform derived from Lactococcus lactis. The NDV protective antigen F or HN fused protein anchor (PA) was expressed by recombinant baculovirus and loaded on the surface of BLPs, resulting in BLPs-F and BLPs-HN, respectively. Efficient uptake of BLPs-F/HN by antigen-presenting cells activated the innate immune system depending mainly on the combination of chicken TLR2 type 1 (chTLR2t1) and chicken TLR1 type 1 (chTLR1t1) was observed. Delivered intranasally, BLPs-F, BLPs-HN, or BLPs-F/HN (a mixture containing equal amounts of BLPs-F and BLPs-HN) elicited robust local NDV-specific SIgA in the trachea as well as systemic neutralizing antibody and a mixed Th1/Th2 immune response in chickens. Notably, BLPs-F/HN provided as high as 90 % protection rate against intranasal challenge with a lethal dose of virulent genotype VII NDV NA-1 strain. These data indicate that this BLP-based subunit vaccine has the potential to be a novel mucosal vaccine against genotype VII NDV infection.
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Affiliation(s)
- Jianzhong Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130118, China; Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
| | - Qiquan Lan
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130118, China; Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Xianchun Zong
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130118, China; Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Guangmei Zhu
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130118, China; Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Rui Yang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130118, China; Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Guilian Yang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130118, China; Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Yanlong Jiang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130118, China; Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Wentao Yang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130118, China; Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Haibin Huang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130118, China; Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Chunwei Shi
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130118, China; Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Yan Zeng
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130118, China; Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Nan Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130118, China; Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Xin Cao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130118, China; Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - Chunfeng Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130118, China; Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
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Xu T, Xiong T, Xie W, Wu J, Liu X, Li G, Lv Y, Li L, Yang Z, Wang H, Liu D, Chen R. Construction and Evaluation of the Immunogenicity and Protective Efficacy of Recombinant Replication-Deficient Human Adenovirus-5 Expressing Genotype VII Newcastle Disease Virus F Protein and Infectious Bursal Disease Virus VP2 Protein. Vaccines (Basel) 2023; 11:1051. [PMID: 37376440 DOI: 10.3390/vaccines11061051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/18/2023] [Accepted: 05/26/2023] [Indexed: 06/29/2023] Open
Abstract
Newcastle disease (ND) and infectious bursal disease (IBD) are two key infectious diseases that significantly threaten the health of the poultry industry. Although existing vaccinations can effectively prevent and treat these two diseases through multiple immunizations, frequent immunization stresses significantly impact chicken growth. In this study, three recombinant adenoviruses, rAd5-F expressing the NDV (genotype VII) F protein, rAd5-VP2 expressing the IBDV VP2 protein, and rAd5-VP2-F2A-F co-expressing F and VP2 proteins, were constructed using the AdEasy system. The F and VP2 genes of the recombinant adenoviruses could be transcribed and expressed normally in HEK293A cells as verified by RT-PCR and Western blot. The three recombinant viruses were shown to have similar growth kinetics as rAd5-EGFP. Compared with the PBS and rAd5-EGFP groups, SPF chickens immunized with recombinant adenoviruses produced higher antibody levels, more significant lymphocyte proliferation, and significantly higher CD4+/CD3+ and CD8+/CD3+ cells in peripheral blood. The survival rate of SPF chickens immunized with rAd5-F and rAd5-VP2-F2A-F after the challenge with DHN3 was 100%, and 86% of SPF chickens showed no viral shedding at 7 dpc. The survival rate of SPF chickens immunized with rAd5-VP2 and rAd5-VP2-F2A-F after the challenge with BC6/85 was 86%. rAd5-VP2 and rAd5-VP2-F2A-F significantly inhibited bursal atrophy and pathological changes compared to the rAd5-EGFP and PBS groups. This study provides evidence that these recombinant adenoviruses have the potential to be developed into safe and effective vaccine candidates for the prevention and control of ND and IBD.
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Affiliation(s)
- Ting Xu
- Zhaoqing Branch of Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Zhaoqing 526238, China
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China
| | - Ting Xiong
- Zhaoqing Branch of Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Zhaoqing 526238, China
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China
| | - Wenting Xie
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China
| | - Jing Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China
| | - Xiao Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China
| | - Guimin Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China
| | - Yadi Lv
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China
| | - Linyu Li
- Zhaoqing Branch of Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Zhaoqing 526238, China
| | - Zekun Yang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China
| | - Han Wang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China
| | - Dingxiang Liu
- Zhaoqing Branch of Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Zhaoqing 526238, China
- Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China
| | - Ruiai Chen
- Zhaoqing Branch of Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Zhaoqing 526238, China
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510640, China
- Key Laboratory of Biotechnology and Bioproducts Development for Animal Epidemic Prevention, Ministry of Agriculture and Rural Affairs, Zhaoqing 526238, China
- Guangdong Enterprise Key Laboratory of Biotechnology R&D of Veterinary Biologics, Zhaoqing 526238, China
- Zhaoqing Dahuanong Biology Medicine Co., Ltd., Zhaoqing 526238, China
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7
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Qiu X, Jia Y, Zhang Z, Fo X, Wang W. Characterization of Chicken-Derived Genotype VII Newcastle Disease Virus Isolates from Northwest China. J Poult Sci 2023; 60:2023010. [PMID: 37124632 PMCID: PMC10132845 DOI: 10.2141/jpsa.2023010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 03/16/2023] [Indexed: 05/02/2023] Open
Abstract
Newcastle disease virus (NDV) threatens global poultry production, with genotype VII the most prevalent strain in China. However, little information is available regarding viral multiplication and pathogenicity based inoculation route. The objectives of this study were to sequence NDV VII isolates and to analyze their biological characteristics in detail. A total of 86 oral and cloacal swabs were collected from Shaanxi and Gansu provinces in northwest China. Identification of genotype VII NDV based on the M gene was performed by qPCR. Viral multiplication and pathogenicity were assessed as a function of route of infection. We observed increased morbidity and mortality using intravenous injection, whereas intranasal, intraocular, and cloacal infections resulted in slower progression and milder clinical disease, with viral proliferation obvious in different tissues. These results provide an important basis for the clinical control and prevention of NDV epidemics in poultry.
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Affiliation(s)
- Xinxin Qiu
- College of Veterinary Medicine, Gansu Agricultural
University, Lanzhou, Gansu 730070, China
- Department of animal engineering/Shaanxi engineering research
center of the prevention and control for animal disease, Yangling Vocational &
Technical College, Yangling, Shaanxi Province 712100, China
| | - Yanqing Jia
- Department of animal engineering/Shaanxi engineering research
center of the prevention and control for animal disease, Yangling Vocational &
Technical College, Yangling, Shaanxi Province 712100, China
| | - Zhencang Zhang
- Department of animal engineering/Shaanxi engineering research
center of the prevention and control for animal disease, Yangling Vocational &
Technical College, Yangling, Shaanxi Province 712100, China
| | - Xianglin Fo
- Department of animal engineering/Shaanxi engineering research
center of the prevention and control for animal disease, Yangling Vocational &
Technical College, Yangling, Shaanxi Province 712100, China
| | - Wenhui Wang
- College of Veterinary Medicine, Gansu Agricultural
University, Lanzhou, Gansu 730070, China
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8
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Zhang J, Ji Y, Wang Z, Jia Y, Zhu Q. Effective improvements to the live-attenuated Newcastle disease virus vaccine by polyethylenimine-based biomimetic silicification. Vaccine 2022; 40:886-896. [PMID: 34991927 DOI: 10.1016/j.vaccine.2021.12.054] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/20/2021] [Accepted: 12/23/2021] [Indexed: 10/19/2022]
Abstract
Live and killed vaccines impart a significant role in preventing of Newcastle disease (ND) in China. Vaccine efficacy could be ameliorated by improving vaccine-induced cellular immunity and antibody persistency. Previous studies substantiated the potency of silicon dioxide (SiO2) in the control-release of drugs and as a vaccine adjuvant, and polyethylenimine (PEI) merits as a mucosal adjuvanticity with electro-positivity. The present study employed SiO2 and PEI to prepare biomimetic silicon mineralized nanoparticle G7M@SiO2-PEI and microparticle (SiO2 + PEI)@G7M vaccines of G7M, a candidate for live attenuated vaccine of genotype VII Newcastle disease virus (NDV). The zeta potential experiment confirmed the significant increase in the average zeta potential of the nanoparticle G7M@SiO2-PEI and microparticle (SiO2 + PEI)@G7M relative to G7M before mineralization. The results of RT-qPCR revealed more than 99% mineralization efficiency of the G7M@SiO2-PEI and (SiO2 + PEI)@G7M. The morphology detected by transmission electron microscopy reported that the diameters of G7M@SiO2-PEI were similar to those of G7M, while for (SiO2 + PEI)@G7M, it was about five times larger than that of G7M. Silicon was detected on the surface of both mineralization particles, except for G7M, as observed from the elemental distribution detected by elemental mapping and energy dispersive X-ray spectrogram. Indirect immunofluorescence assays validated that mineralization virus have replicated ability in BHK-21F cells. In vivo experiments revealed higher than 5.50 log2 of antibody in nanoparticles G7M@SiO2-PEI group until 10-week post-vaccination, and significant proliferation of antigen-specific CD3+CD4+ in nanoparticles G7M@SiO2-PEI immunized group corroborated improved cellular immune responses. Vaccines provided full protection to the immunized chickens, whereas all the chickens receiving mock immunizations succumbed to the disease. Overall, our study concluded the efficacy of biomimetic mineralization of live attenuated vaccine in nanoparticles to improve humoral and cellular immune responses.
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Affiliation(s)
- Jinjin Zhang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, PR China
| | - Yanhong Ji
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, PR China
| | - Zhengxiang Wang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, PR China
| | - Yane Jia
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, PR China
| | - Qiyun Zhu
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, PR China.
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9
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Pathotyping of Newcastle Disease Virus: a Novel Single BsaHI Digestion Method of Detection and Differentiation of Avirulent Strains (Lentogenic and Mesogenic Vaccine Strains) from Virulent Virus. Microbiol Spectr 2021; 9:e0098921. [PMID: 34878298 PMCID: PMC8653816 DOI: 10.1128/spectrum.00989-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We provide a novel single restriction enzyme (RE; BsaHI) digestion approach for detecting distinct pathotypes of Newcastle disease virus (NDV). After scanning 4,000 F gene nucleotide sequences in the NCBI database, we discovered a single RE (BsaHI) digestion site in the cleavage site. APMV-I “F gene” class II-specific primer-based reverse transcriptase PCR was utilized to amplify a 535-bp fragment, which was then digested with the RE (BsaHI) for pathotyping avian NDV field isolates and pigeon paramyxovirus-1 isolates. The avirulent (lentogenic and mesogenic strains) produced 189- and 346-bp fragments, respectively, but the result in velogenic strains remained undigested with 535-bp fragments. In addition, 45 field NDV isolates and 8 vaccine strains were used to confirm the approach. The sequence-based analysis also agrees with the data obtained utilizing the single RE (BsaHI) digestion approach. The proposed technique has the potential to distinguish between avirulent and virulent strains in a short time span, making it valuable in NDV surveillance and monitoring research. IMPORTANCE The extensive use of the NDV vaccine strain and the existence of avirulent NDV strains in wild birds makes it difficult to diagnose Newcastle Disease virus (NDV). The intracerebral pathogenicity index (ICPI) and/or sequencing-based identification, which are required to determine virulent NDV, are time-consuming, costly, difficult, and cruel techniques. We evaluated 4,000 F gene nucleotide sequences and discovered a restriction enzyme (RE; BsaHI) digestion technique for detecting NDV and vaccine pathotypes in a short time span, which is cost-effective and useful for field cases as well as for large-scale NDV monitoring and surveillance. The data acquired using the single RE BsaHI digestion technique agree with the sequence-based analysis.
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10
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Thomazelli LM, Sinhorini JA, Oliveira DBL, Knöbl T, Bosqueiro TCM, Sano E, Costa GCV, Monteiro C, Dorlass EG, Utecht N, Scagion GP, Meneguin C, Silva LMN, Moraes MVS, Bueno LM, Reischak D, Carrasco AOT, Arns CW, Ferreira HL, Durigon EL. An Outbreak in Pigeons Caused by the Subgenotype VI.2.1.2 of Newcastle Disease Virus in Brazil. Viruses 2021; 13:v13122446. [PMID: 34960715 PMCID: PMC8706928 DOI: 10.3390/v13122446] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/30/2021] [Accepted: 12/01/2021] [Indexed: 02/07/2023] Open
Abstract
Newcastle disease virus (NDV) can infect over 250 bird species with variable pathogenicity; it can also infect humans in rare cases. The present study investigated an outbreak in feral pigeons in São Paulo city, Brazil, in 2019. Affected birds displayed neurological signs, and hemorrhages were observed in different tissues. Histopathology changes with infiltration of mononuclear inflammatory cells were also found in the brain, kidney, proventriculus, heart, and spleen. NDV staining was detected by immunohistochemistry. Twenty-seven out of thirty-four tested samples (swabs and tissues) were positive for Newcastle disease virus by RT-qPCR test, targeting the M gene. One isolate, obtained from a pool of positive swab samples, was characterized by the intracerebral pathogenicity index (ICPI) and the hemagglutination inhibition (HI) tests. This isolate had an ICPI of 0.99, confirming a virulent NDV strain. The monoclonal antibody 617/161, which recognizes a distinct epitope in pigeon NDV strains, inhibited the isolate with an HI titer of 512. A complete genome of NDV was obtained using next-generation sequencing. Phylogenetic analysis based on the complete CDS F gene grouped the detected isolate with other viruses from subgenotype VI.2.1.2, class II, including one previously reported in Southern Brazil in 2014. This study reports a comprehensive characterization of the subgenotype VI.2.1.2, which seems to have been circulating in Brazilian urban areas since 2014. Due to the zoonotic risk of NDV, virus surveillance in feral pigeons should also be systematically performed in urban areas.
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Affiliation(s)
- Luciano M. Thomazelli
- Biomedical Science Institute, University of São Paulo, São Paulo 05508-000, Brazil; (L.M.T.); (D.B.L.O.); (E.S.); (C.M.); (E.G.D.); (N.U.); (G.P.S.); (C.M.); (E.L.D.)
| | - Juliana A. Sinhorini
- Zoonoses Surveillance Division of the Health Surveillance Coordination, Health Department of São Paulo, R. Santa Eulália, 86, São Paulo 02031-020, Brazil; (J.A.S.); (T.C.M.B.); (G.C.V.C.)
| | - Danielle B. L. Oliveira
- Biomedical Science Institute, University of São Paulo, São Paulo 05508-000, Brazil; (L.M.T.); (D.B.L.O.); (E.S.); (C.M.); (E.G.D.); (N.U.); (G.P.S.); (C.M.); (E.L.D.)
- Zoonoses Surveillance Division of the Health Surveillance Coordination, Health Department of São Paulo, R. Santa Eulália, 86, São Paulo 02031-020, Brazil; (J.A.S.); (T.C.M.B.); (G.C.V.C.)
| | - Terezinha Knöbl
- Hospital Israelita Albert Einstein, São Paulo 05652-900, Brazil
| | - Tatiana C. M. Bosqueiro
- Avian Medicine Laboratory, Veterinary Medicine and Animal Science School, University of São Paulo, Butantã, São Paulo 05508-270, Brazil;
| | - Elder Sano
- Biomedical Science Institute, University of São Paulo, São Paulo 05508-000, Brazil; (L.M.T.); (D.B.L.O.); (E.S.); (C.M.); (E.G.D.); (N.U.); (G.P.S.); (C.M.); (E.L.D.)
- Zoonoses Surveillance Division of the Health Surveillance Coordination, Health Department of São Paulo, R. Santa Eulália, 86, São Paulo 02031-020, Brazil; (J.A.S.); (T.C.M.B.); (G.C.V.C.)
| | - Gladyston C. V. Costa
- Zoonoses Surveillance Division of the Health Surveillance Coordination, Health Department of São Paulo, R. Santa Eulália, 86, São Paulo 02031-020, Brazil; (J.A.S.); (T.C.M.B.); (G.C.V.C.)
| | - Cairo Monteiro
- Biomedical Science Institute, University of São Paulo, São Paulo 05508-000, Brazil; (L.M.T.); (D.B.L.O.); (E.S.); (C.M.); (E.G.D.); (N.U.); (G.P.S.); (C.M.); (E.L.D.)
| | - Erick G. Dorlass
- Biomedical Science Institute, University of São Paulo, São Paulo 05508-000, Brazil; (L.M.T.); (D.B.L.O.); (E.S.); (C.M.); (E.G.D.); (N.U.); (G.P.S.); (C.M.); (E.L.D.)
| | - Nathalia Utecht
- Biomedical Science Institute, University of São Paulo, São Paulo 05508-000, Brazil; (L.M.T.); (D.B.L.O.); (E.S.); (C.M.); (E.G.D.); (N.U.); (G.P.S.); (C.M.); (E.L.D.)
| | - Guilherme P. Scagion
- Biomedical Science Institute, University of São Paulo, São Paulo 05508-000, Brazil; (L.M.T.); (D.B.L.O.); (E.S.); (C.M.); (E.G.D.); (N.U.); (G.P.S.); (C.M.); (E.L.D.)
| | - Carla Meneguin
- Biomedical Science Institute, University of São Paulo, São Paulo 05508-000, Brazil; (L.M.T.); (D.B.L.O.); (E.S.); (C.M.); (E.G.D.); (N.U.); (G.P.S.); (C.M.); (E.L.D.)
| | - Laura M. N. Silva
- Graduate Program in Experimental Epidemiology Applied to Zoonoses, Veterinary Medicine and Animal Science School, University of São Paulo, São Paulo 05508-270, Brazil; (L.M.N.S.); (M.V.S.M.)
| | - Maria Vitória S. Moraes
- Graduate Program in Experimental Epidemiology Applied to Zoonoses, Veterinary Medicine and Animal Science School, University of São Paulo, São Paulo 05508-270, Brazil; (L.M.N.S.); (M.V.S.M.)
| | - Larissa M. Bueno
- Department of Veterinary Medicine, FZEA-USP, University of Sao Paulo, Pirassununga 13635-900, Brazil;
| | - Dilmara Reischak
- Federal Laboratory for Agricultural Defense in Sao Paulo (LFDA-SP), Animal Diagnostics Unit, Rua Raul Ferrari, s/n°, Campinas 13100-105, Brazil;
| | - Adriano O. T. Carrasco
- Department of Veterinary Medicine, State University of the Midwest, Alameda Élio Antonio Dalla Vecchia, 838, Guarapuava 85040-167, Brazil;
| | - Clarice W. Arns
- Department of Genetics, Evolution and Bioagents, Institute of Biology, University of Campinas—UNICAMP, P.O. Box 6109, Campinas 13083-970, Brazil;
| | - Helena L. Ferreira
- Graduate Program in Experimental Epidemiology Applied to Zoonoses, Veterinary Medicine and Animal Science School, University of São Paulo, São Paulo 05508-270, Brazil; (L.M.N.S.); (M.V.S.M.)
- Department of Veterinary Medicine, FZEA-USP, University of Sao Paulo, Pirassununga 13635-900, Brazil;
- Correspondence: ; Tel.: +55-19-3565-4385
| | - Edison L. Durigon
- Biomedical Science Institute, University of São Paulo, São Paulo 05508-000, Brazil; (L.M.T.); (D.B.L.O.); (E.S.); (C.M.); (E.G.D.); (N.U.); (G.P.S.); (C.M.); (E.L.D.)
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11
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Zhan T, He D, Lu X, Liao T, Wang W, Chen Q, Liu X, Gu M, Wang X, Hu S, Liu X. Biological Characterization and Evolutionary Dynamics of Pigeon Paramyxovirus Type 1 in China. Front Vet Sci 2021; 8:721102. [PMID: 34722696 PMCID: PMC8548471 DOI: 10.3389/fvets.2021.721102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 09/14/2021] [Indexed: 11/13/2022] Open
Abstract
Pigeon paramyxovirus type 1 (PPMV-1) is considered as an antigenic variant of Newcastle disease virus (NDV) which has an obvious host preference for pigeons and has caused significant economic losses to the global poultry industry. The evolutionary dynamics of PPMV-1 in China, however, are poorly understood. In this study, we characterized seven PPMV-1 isolates from diseased pigeons collected in Jiangsu, Anhui, and Henan provinces during 2020. Phylogenetic analysis revealed that seven isolates belonged to sub-genotype VI.2.1.1.2.2. Biological characterization indicated that seven isolates were mesogenic based on the mean death time (69.6-91.2 h) and intracerebral pathogenicity index (1.19-1.40) and had similar growth kinetics in chicken embryos and CEFs. Furthermore, the four representative viruses (AH/01/20/Pi, JS/06/20/Pi, HN/01/20/Pi, and HN/02/20/Pi) could result in marked cytopathic effects (CPE) in CEFs and induced syncytium formation in Vero cells. Our Bayesian phylogenetic analysis showed that PPMV-1 might first emerge in East China in 1974 and East China had the highest genotypic diversity of PPMV-1. Besides, phylogeographic analysis indicated that East China and South China were probably the major epicenters of dissemination of PPMV-1 in China. Selection pressure analysis and amino acid substitutions analysis revealed that the viral replication complex (NP, P, and L proteins) was likely related with the host preference of PPMV-1. Collectively, this study uncovered the epidemiology and evolutionary dynamics of PPMV-1 circulating in China, emphasizing the importance of strengthening the monitoring of PPMV-1 in East China and South China and providing significant clues for further studies on the molecular mechanism underlying host preference of PPMV-1.
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Affiliation(s)
- Tiansong Zhan
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Dongchang He
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiaolong Lu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Tianxing Liao
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Wenli Wang
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Qing Chen
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiaowen Liu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, China
| | - Min Gu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, China
| | - Xiaoquan Wang
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, China
| | - Shunlin Hu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, China
| | - Xiufan Liu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, China
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12
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Guinat C, Vergne T, Kocher A, Chakraborty D, Paul MC, Ducatez M, Stadler T. What can phylodynamics bring to animal health research? Trends Ecol Evol 2021; 36:837-847. [PMID: 34034912 DOI: 10.1016/j.tree.2021.04.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 04/22/2021] [Accepted: 04/29/2021] [Indexed: 11/18/2022]
Abstract
Infectious diseases are a major burden to global economies, and public and animal health. To date, quantifying the spread of infectious diseases to inform policy making has traditionally relied on epidemiological data collected during epidemics. However, interest has grown in recent phylodynamic techniques to infer pathogen transmission dynamics from genetic data. Here, we provide examples of where this new discipline has enhanced disease management in public health and illustrate how it could be further applied in animal health. In particular, we describe how phylodynamics can address fundamental epidemiological questions, such as inferring key transmission parameters in animal populations and quantifying spillover events at the wildlife-livestock interface, and generate important insights for the design of more effective control strategies.
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Affiliation(s)
- Claire Guinat
- Department of Biosystems Science and Engineering, ETH Zürich, Mattenstrasse 26, 4058 Basel, Switzerland; Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland.
| | - Timothee Vergne
- IHAP, Université de Toulouse, INRAE, ENVT, 23 Chemin des Capelles, 31300 Toulouse, France
| | - Arthur Kocher
- Transmission, Infection, Diversification & Evolution (tide) group, Max Planck Institute for the Science of Human History, Kahlaische str. 10, 07745 Jena, Germany
| | - Debapryio Chakraborty
- IHAP, Université de Toulouse, INRAE, ENVT, 23 Chemin des Capelles, 31300 Toulouse, France
| | - Mathilde C Paul
- IHAP, Université de Toulouse, INRAE, ENVT, 23 Chemin des Capelles, 31300 Toulouse, France
| | - Mariette Ducatez
- IHAP, Université de Toulouse, INRAE, ENVT, 23 Chemin des Capelles, 31300 Toulouse, France
| | - Tanja Stadler
- Department of Biosystems Science and Engineering, ETH Zürich, Mattenstrasse 26, 4058 Basel, Switzerland; Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
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13
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Genetic and evolutionary characterization of avian paramyxovirus type 4 in China. INFECTION GENETICS AND EVOLUTION 2021; 91:104777. [PMID: 33631368 DOI: 10.1016/j.meegid.2021.104777] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 02/14/2021] [Accepted: 02/17/2021] [Indexed: 01/11/2023]
Abstract
As an economically important poultry pathogen, avian paramyxovirus serotype 4 (APMV-4) frequently reported and isolated from domestic and wild birds particularly waterfowls worldwide. However, evolutionary dynamics of APMV-4 based on genomic characteristics is lacking. In this study, APMV-4 strain designated JX-G13 was isolated from oropharyngeal and cloacal swab samples of wild birds in China. Phylogenetic analysis revealed APMV-4 strains were divided into four genetic genotypes and China isolates were mainly clustered into Genotype I. The MCMC tree indicated that APMV-4 diverged about 104 years ago with the evolutionary rate of 1.2927 × 10-3 substitutions/site/year. BSP analysis suggested that the effective population size of APMV-4 exhibited a steady state and decreased slowly after 2013. The F gene of APMV-4 was considered relatively conserved among isolates based on nucleotide diversity analysis. Although the F gene was under purifying selection, two positions (5 and 21) located in 3'-UTR were subject to positive selection. Our study firstly presented the evolutionary assessments on the genetic diversity of circulating APMV-4 from wild birds and domestic poultry.
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