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Hasan M, Ahmed S, Imranuzzaman M, Bari R, Roy S, Hasan MM, Mia MM. Designing and development of efficient multi-epitope-based peptide vaccine candidate against emerging avian rotavirus strains: A vaccinomic approach. J Genet Eng Biotechnol 2024; 22:100398. [PMID: 39179326 PMCID: PMC11260576 DOI: 10.1016/j.jgeb.2024.100398] [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: 02/28/2024] [Revised: 05/17/2024] [Accepted: 06/19/2024] [Indexed: 08/26/2024]
Abstract
BACKGROUND Enteric avian rotavirus (ARV) is the etiological agent of several health problems that pose a global threat to commercial chickens. Therefore, to avoid these widespread epidemics and high mortality rates, only vaccine and strict biosecurity are required. METHOD The present study employs computational techniques to design a unique multi-epitope-based vaccine candidate that successfully activates immune cells against the ARV by combining adjuvant, linker, and B and T-cell epitopes. Starting, homologous sequences in the various ARV serotypes were revealed in the NCBI BLAST database, and then the two surface proteins (VP4 and VP7) of the ARV were retrieved from the UniprotKB database. The Clustal Omega server was then used to identify the conserved regions among the homologous sequences, and the B and T-cell epitopes were predicted using IEDB servers. Then, superior epitopes-2 MHC-1 epitopes, 2 MHC-2 epitopes, and 3B-cell epitopes-were combined with various adjuvants to create a total of four unique vaccine candidates. Afterward, the designed vaccine candidates underwent computational validation to assess their antigenicity, allergenicity, and stability. The vaccine candidate (V2) that demonstrated non-antigenicity, a high VaxiJen score, and non-allergenicity was ultimately chosen for molecular docking and dynamic simulation. RESULTS Although the V2 and V4 vaccine candidates were highly immunogenic, V2 had a higher solubility rate. The predicted values of the aliphatic index and GRAVY value were 30.4 and 0.417, respectively. In terms of binding energy, V2 outperformed V4. Being successfully docked with TLRs, V2 was praised as the finest. After adaptation, the sequence's 50.73 % GC content outside of the BglII or ApaI restriction sites indicated that it was equivalently safe to clone. The chosen sequence was then inserted into the pET28a(+) vector within the BglII and ApaI restriction sites. This resulted in a final clone that was 4914 base pairs long, with the inserted sequence accounting for 478 bp and the vector accounting for the remainder. CONCLUSIONS The immune-mediated simulation results for the selected vaccine construct showed significant response; thus, the study confirmed that the selected V2 vaccine candidate could enhance the immune response against ARV.
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Affiliation(s)
- Mahamudul Hasan
- Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh.
| | - Shakil Ahmed
- Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh.
| | - Md Imranuzzaman
- Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh; Department of Pharmacology and Toxicology, Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh
| | - Rezaul Bari
- Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh
| | - Shiplu Roy
- Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh; Department of Livestock Production and Management, Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh
| | - Md Mahadi Hasan
- Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh
| | - Md Mukthar Mia
- Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh; Department of Poultry Science, Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh
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Lai J, Yang L, Chen F, He X, Zhang R, Zhao Y, Gao G, Mu W, Chen X, Luo S, Ren T, Xiang B. Prevalence and Molecular Characteristics of FAdV-4 from Indigenous Chicken Breeds in Yunnan Province, Southwestern China. Microorganisms 2023; 11:2631. [PMID: 38004643 PMCID: PMC10673041 DOI: 10.3390/microorganisms11112631] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/18/2023] [Accepted: 10/24/2023] [Indexed: 11/26/2023] Open
Abstract
Fowl adenovirus-induced hepatitis-pericardial effusion syndrome outbreaks have been increasingly reported in China since 2015, resulting in substantial economic losses to the poultry industry. The genetic diversity of indigenous chicken results in different immune traits, affecting the evolution of these viruses. Although the molecular epidemiology of fowl adenovirus serotype 4 (FAdV-4) has been well studied in commercial broiler and layer chickens, the prevalence and genetic characteristics of FAdV-4 in indigenous chickens remain largely unknown. In this study, samples were collected from six indigenous chicken breeds in Yunnan province, China. FAdV-positive samples were identified in five of the six indigenous chicken populations via PCR and 10 isolates were obtained. All FAdVs belonged to serotype FAdV-4 and species FAdV-C. The hexon, fiber, and penton gene sequence comparison analysis demonstrated that the prevalence of FAdV-4 isolates in these chickens might have originated from other provinces that exported chicks and poultry products to Yunnan province. Moreover, several distinct amino acid mutations were firstly identified in the major structural proteins. Our findings highlighted the need to decrease inter-regional movements of live poultry to protect indigenous chicken genetic resources and that the immune traits of these indigenous chickens might result in new mutations of FAdV-4 strains.
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Affiliation(s)
- Jinyu Lai
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Liangyu Yang
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Fashun Chen
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Xingchen He
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Rongjie Zhang
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Yong Zhao
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Gan Gao
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Weiwu Mu
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Xi Chen
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Shiyu Luo
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Tao Ren
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Bin Xiang
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
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3
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Abstract
The different technology platforms used to make poultry vaccines are reviewed. Vaccines based on classical technologies are either live attenuated or inactivated vaccines. Genetic engineering is applied to design by deletion, mutation, insertion, or chimerization, genetically modified target microorganisms that are used either as live or inactivated vaccines. Other vaccine platforms are based on one or a few genes of the target pathogen agent coding for proteins that can induce a protective immune response ("protective genes"). These genes can be expressed in vitro to produce subunit vaccines. Alternatively, vectors carrying these genes in their genome or nucleic acid-based vaccines will induce protection by in vivo expression of these genes in the vaccinated host. Properties of these different types of vaccines, including advantages and limitations, are reviewed, focusing mainly on vaccines targeting viral diseases and on technologies that succeeded in market authorization.
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4
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Wang J, Li Y, Zhang Y, Chen L, Fang L, Chang S, Wang Y, Zhao P. Construction of chicken infectious anemia virus infectious clone and study on its pathogenicity. Front Microbiol 2022; 13:1016784. [PMID: 36212822 PMCID: PMC9539448 DOI: 10.3389/fmicb.2022.1016784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 09/06/2022] [Indexed: 11/13/2022] Open
Abstract
Chicken infectious anemia virus (CIAV) can be transmitted through contaminated live poultry vaccine. However, the pathogenicity of contaminated CIAV strains is rarely reported. Previously, the chickens showed the typical symptoms of anemia after using the attenuated live fowl pox virus (FPV) vaccine. Therefore, exogenous CIAV contamination was suspected. We detected anti-CIAV antibodies in SPF chicks vaccinated with the FPV vaccine. CIAV contamination was confirmed in the FPV vaccine, and the CIAV strain was named JS2020-FPV. This study aims to rescue JS2020-FPV by reverse genetic assays and investigate its pathogenicity. Firstly, double-copies infectious clone of JS2020-FPV was constructed. For the pathogenicity study, infectious clone of JS2020-FPV was used to inoculate 1-day-old SPF chicks. The typical symptoms of anemia were observed in the JS2020-PFV group 14 days post inoculation. The hematocrit and body weight of chicks in the JS2020-PFV group were significantly lower than those in the mock group. Notably, the thymus development index and antibody levels of NDV were lower in chicks in the JS2020-PFV group than those in the mock group. Different degrees of apoptosis of MSB1 and DF-1 were observed after inoculated with the JS2020-FPV VP3 recombinant fusion protein expressed by E. coli system, indicating that VP3 induced apoptosis in the transformed cells. Overall, the pathogenicity of the CIAV detected in the contaminated vaccine was confirmed by inoculating SPF chicks with the double-copies infectious DNA clone in this study. Our findings indicate that the dangers of vaccine contamination cannot be ignored.
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Affiliation(s)
- Jinjin Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an, China
| | - Yan Li
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an, China
| | - Yawen Zhang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an, China
| | - Longfei Chen
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an, China
| | - Lichun Fang
- Shandong Academy of Agricultural Sciences, Jinan, China
| | - Shuang Chang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an, China
| | - Yixin Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an, China
- *Correspondence: Yixin Wang, ; Peng Zhao,
| | - Peng Zhao
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an, China
- *Correspondence: Yixin Wang, ; Peng Zhao,
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Li X, Zhang K, Pei Y, Xue J, Ruan S, Zhang G. Development and Application of an MRT-qPCR Assay for Detecting Coinfection of Six Vertically Transmitted or Immunosuppressive Avian Viruses. Front Microbiol 2020; 11:1581. [PMID: 32765453 PMCID: PMC7379340 DOI: 10.3389/fmicb.2020.01581] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 06/17/2020] [Indexed: 01/19/2023] Open
Abstract
Marek's disease virus (MDV), reticuloendotheliosis virus (REV), avian reovirus (ARV), chicken infectious anemia virus (CIAV), infectious bursal disease virus (IBDV), and fowl adenovirus (FAdV) are important causes of disease in poultry. To investigate the infection status of the above six viruses in chickens in China, 1,187 samples from chicken flocks were collected and tested using a newly developed multiplex reverse-transcription quantitative real-time PCR (MRT-qPCR) assay in the study. A series of validation tests confirmed that the MRT-qPCR assay has high specificity, sensitivity, and repeatability. As for six detected pathogens, CIAV had the highest detection ratio, while ARV was not detected in any samples. In the spleen samples, the coinfection rate for MDV and CIAV was 1.6%, and that for REV and CIAV was 0.4%. In the bursa samples, the coinfection rate for FAdV and CIAV was 0.3%, and that for IBDV and CIAV was 1%. In the thymus samples, the coinfection rates for MDV and CIAV and for REV and CIAV were both 0.8%. Our study indicates that the coinfection of these viruses was existing in chickens in China. Through the detection of clinical samples, this study provides data on the coinfections of the above six pathogens and provides a basis for the further study of viral coinfection in chickens.
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Affiliation(s)
- Xiao Li
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Keran Zhang
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Yu Pei
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jia Xue
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Sifan Ruan
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Guozhong Zhang
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, China
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Immune effect of a Newcastle disease virus DNA vaccine with IL-12 as a molecular adjuvant delivered by electroporation. Arch Virol 2020; 165:1959-1968. [PMID: 32519007 PMCID: PMC7282469 DOI: 10.1007/s00705-020-04669-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 04/17/2020] [Indexed: 10/27/2022]
Abstract
Newcastle disease (ND), caused by virulent Newcastle disease virus (NDV) strains, has been one of the most problematic diseases affecting the poultry industry worldwide. Conventional vaccines provide effective protection for birds to survive ND outbreaks, but they may not completely suppress NDV shedding. NDV strains circulate on farms for a long time after the initial infection and cause potential risks. A new vaccine with fast clearance ability and low viral shedding is needed. In this study, we used interleukin-12 (IL-12) as an adjuvant and electroporation (EP) as an advanced delivery system to improve a DNA vaccine candidate. The fusion (F) protein gene from an NDV strain of the prevalent genotype VII.1.1 was cloned to prepare the vaccine. Chickens immunized with the F gene DNA vaccine co-delivered with an IL-12-expressing plasmid DNA showed higher neutralizing antibody levels and stronger concanavalin-A-induced lymphocyte proliferation than those treated with the F gene DNA vaccine alone. The co-delivered vaccine provided 100% protection, and less viral shedding and a shorter release time were observed in challenged chickens than when the F gene DNA vaccine was administered alone. The use of F gene DNA combined with IL-12 delivered by electroporation is a promising approach for vaccination against ND.
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7
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Wibowo MH, Sahesty A, Mahardika BK, Purwanto B, Lestariningsih CL, Kade Suardana IB, Oka Winaya IB, Irine I, Suryanggono J, Jonas M, Murwijati T, Mahardika GN. Epizootiology, Clinical Signs, and Phylogenetic Analysis of Fowl Adenovirus in Chicken Farms in Indonesia from 2018 to 2019. Avian Dis 2020; 63:619-624. [PMID: 31865676 DOI: 10.1637/aviandiseases-d-19-00127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 07/10/2019] [Indexed: 11/05/2022]
Abstract
Fowl adenovirus (FAdV) infection is an emerging problem in the world poultry industry, especially in broilers, as the causal agent of inclusion body hepatitis or hepatitis-hydropericardium syndrome. From December 2017 to January 2019, we recorded 116 cases of suspected hepatitis-hydropericardium syndrome in chicken farms throughout Indonesia. Necropsy was done on each farm site with three to five freshly dead birds per farm. Tissue samples were collected in virus transport medium and frozen at -20 C. The virus was cultivated in 9-day-old fertilized specific-pathogenic-free chicken eggs. FAdV was detected using polymerase chain reaction with a published primer set. The polymerase chain reaction products were sequenced and subjected to a BLAST search. The phylogeny was inferred using the neighbor-joining method and tested using the bootstrap test. FadV-D and -E are present in Indonesia and confirmed in 40 of 116 suspected cases. The affected chicken ages were 27.27 ± 8.94 days. Most affected farms were raising broiler chickens. The only typical clinical sign was unusual daily mortality of >1%, while the three most frequent pathologic lesions were swelling and hemorrhage of kidney and liver, as well as hydropericardium. To reduce economic loss, a vaccine should be developed immediately.
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Affiliation(s)
- Michael Haryadi Wibowo
- Microbiology Department, Faculty of Veterinary Medicine Gajah Mada University, Yogjakarta 55281, Indonesia
| | - Aprilla Sahesty
- Research and Development Department, PT Medion Farma Jaya, Bandung 40552, Indonesia
| | - Bayu K Mahardika
- The Animal Biomedical and Molecular Biology Laboratory, Udayana University of Bali, Denpasar 80223, Indonesia
| | - Budi Purwanto
- Research and Development Department, PT Medion Farma Jaya, Bandung 40552, Indonesia
| | | | - Ida Bagus Kade Suardana
- Virology Department, Faculty of Veterinary Medicine, Udayana University of Bali, Denpasar 80113, Indonesia
| | - Ida Bagus Oka Winaya
- Pathology Department, Faculty of Veterinary Medicine Udayana University of Bali, Denpasar 80113, Indonesia
| | - Ine Irine
- Research and Development Department, PT Medion Farma Jaya, Bandung 40552, Indonesia
| | - Jodi Suryanggono
- Research and Development Department, PT Medion Farma Jaya, Bandung 40552, Indonesia
| | - Melina Jonas
- Research and Development Department, PT Medion Farma Jaya, Bandung 40552, Indonesia
| | - Theresia Murwijati
- Research and Development Department, PT Medion Farma Jaya, Bandung 40552, Indonesia
| | - Gusti Ngurah Mahardika
- The Animal Biomedical and Molecular Biology Laboratory, Udayana University of Bali, Denpasar 80223, Indonesia, .,Virology Department, Faculty of Veterinary Medicine, Udayana University of Bali, Denpasar 80113, Indonesia,
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Mao Y, Su Q, Li J, Jiang T, Wang Y. Avian leukosis virus contamination in live vaccines: A retrospective investigation in China. Vet Microbiol 2020; 246:108712. [PMID: 32605749 DOI: 10.1016/j.vetmic.2020.108712] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/24/2020] [Accepted: 05/04/2020] [Indexed: 12/19/2022]
Abstract
Avian leukosis (AL) is one of the most pandemic immunosuppressive diseases and has been widely spread between 2006 and 2009 in China. The contamination of avian leukosis virus (ALV) in attenuated vaccine is considered as one of the possible transmission routes of this disease. Based on a retrospective survey of 918 batches of attenuated vaccine produced before 2010, three of them were identified as ALV-positive and corresponding ALV strains were successfully isolated from a live Fowlpox virus vaccine, a live Newcastle disease virus vaccine and a live Infectious Bursal Disease virus vaccine, respectively, and whole-genome sequencing showed that these three isolates shared the highest homology with ALV-A wild strains isolated in China (97.7%) over the same period, and the phylogenetic analysis based on their gp85 genes further confirmed that they belong to subgroup A. Meanwhile, although these three ALV-A strains isolated from contaminated vaccines shared a close genetic relationship, their U3 region of genome have a relatively low identity, suggesting that these three strains may have different sources. This study reminds us once again that the possibility of ALV infecting chickens through contaminated live vaccines, requiring us to carry out stricter exogenous virus monitoring in vaccines.
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Affiliation(s)
- Yaqing Mao
- China Institute of Veterinary Drug Control, Beijing 100081, China
| | - Qi Su
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Junping Li
- China Institute of Veterinary Drug Control, Beijing 100081, China.
| | - Taozhen Jiang
- China Institute of Veterinary Drug Control, Beijing 100081, China.
| | - Yixin Wang
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, Shandong, China.
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Jiang Z, Liu M, Wang C, Zhou X, Li F, Song J, Pu J, Sun Y, Wang M, Shahid M, Wei F, Sun H. Characterization of fowl adenovirus serotype 4 circulating in chickens in China. Vet Microbiol 2019; 238:108427. [PMID: 31648724 DOI: 10.1016/j.vetmic.2019.108427] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 09/13/2019] [Accepted: 09/20/2019] [Indexed: 01/10/2023]
Abstract
Outbreaks of fowl adenovirus (FAdV) has resulted in huge economic losses in poultry industry in China since 2015. This study detected the pathogens from diseased chickens and determined that fowl adenovirus serotype 4 (FAdV-4) and co-infection of immunosuppressive pathogens were the causes of the outbreaks. Phylogenetic analysis results indicated that these pandemic strains originated from previously FAdV-4 predecessor in China and had obtain gene mutations that might contribute to enhanced pathogenicity of these strains. Compared with early strains, the pathogenicity of novel FAdV-4 strains significantly increased, which led to systemic infections and injuries to multiple organs in the infected chickens. Our study could provide useful information for understanding of the FAdV-4 and favorable theory basis for clinical prevention and control of the disease.
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Affiliation(s)
- Zhimin Jiang
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine and State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, 100094, China
| | - Mengda Liu
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Chenxi Wang
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine and State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, 100094, China
| | - Xiaowei Zhou
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine and State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, 100094, China
| | - Fangtao Li
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine and State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, 100094, China
| | - Jingwei Song
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine and State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, 100094, China
| | - Juan Pu
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine and State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, 100094, China
| | - Yipeng Sun
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine and State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, 100094, China
| | - Mingyang Wang
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine and State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, 100094, China
| | - Muhammad Shahid
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine and State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, 100094, China
| | - Fanhua Wei
- College of Agriculture, Ningxia University, Yinchuan, 750021, China
| | - Honglei Sun
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine and State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, 100094, China.
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A New Strategy for the Detection of Chicken Infectious Anemia Virus Contamination in Attenuated Live Vaccine by Droplet Digital PCR. BIOMED RESEARCH INTERNATIONAL 2019; 2019:2750472. [PMID: 31223613 PMCID: PMC6541982 DOI: 10.1155/2019/2750472] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 04/07/2019] [Indexed: 12/19/2022]
Abstract
Chicken infectious anemia virus (CIAV) causes the atrophy of bone marrow hematopoietic and lymphoid tissues in chicks, leading to huge economic losses all over the world. The using of attenuated vaccine contaminated with CIAV increased the mortality and the pathogenicity of other diseases in many farms. However, it is difficult to detect the CIAV contamination by general detection technology due to the extremely low dose of CIAV in vaccines. In this study, we established a new method called droplet digital Polymerase Chain Reaction (ddPCR) to detect CIAV contamination of vaccines more sensitively and accurately. The lowest detection limitation of this method is 2.4 copies of CIAV plasmid or CIAV contamination at 0.1 EID50/1000 feathers in vaccines without any positive signals of other viruses. Besides, the sensitivity of ddPCR is 100 times greater than that of conventional PCR and 10 times greater than that of real-time PCR. The ddPCR technique is more sensitive and more intuitive. Therefore, it could be valuable for the detection of CIAV contamination in vaccines.
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11
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Li G, Yu G, Niu Y, Cai Y, Liu S. Airborne Transmission of a Serotype 4 Fowl Adenovirus in Chickens. Viruses 2019; 11:E262. [PMID: 30875756 PMCID: PMC6466269 DOI: 10.3390/v11030262] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 03/01/2019] [Accepted: 03/12/2019] [Indexed: 02/04/2023] Open
Abstract
Serotype 4 fowl adenovirus (FAdV-4) is the main pathogen for hydropericardium syndrome (HPS) in chickens. It has caused major economic losses in the global poultry industry. Currently, FAdV-4's transmission routes in chickens remain unclear. Here we investigate the airborne transmission routes of FAdV-4 in chickens. A total of 45 ten-day-old chickens were equally divided into three groups (infected group/isolator A, airborne group/isolator B, and control group/isolator C). Of note, isolators A and B were connected by a leak-free pipe. The results showed that the virus could form a viral aerosol, detected in isolators two days post infection (dpi). The viral aerosol reached a peak at 4 dpi in the infected group. Healthy chickens in the airborne group were infected by the virus at 8 dpi. The chickens of the airborne group demonstrated subclinical symptoms capable of shedding the virus for some time. This finding suggests that FAdV-4 can be efficiently transmitted among chickens by aerosol transmission. These findings have significant implications for developing strategies to control this infectious disease epidemic.
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Affiliation(s)
- Gang Li
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
| | - Guanliu Yu
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
| | - Yujuan Niu
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
| | - Yumei Cai
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
| | - Sidang Liu
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong, China.
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12
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Su Q, Meng F, Li Y, Zhang Y, Zhang Z, Cui Z, Chang S, Zhao P. Chicken infectious anemia virus helps fowl adenovirus break the protection of maternal antibody and cause inclusion body hepatitis-hydropericardium syndrome in layers after using co-contaminated Newcastle disease virus-attenuated vaccine. Poult Sci 2019; 98:621-628. [PMID: 30358862 DOI: 10.3382/ps/pey153] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 09/19/2018] [Indexed: 12/17/2022] Open
Abstract
Inclusion body hepatitis-hydropericardium syndrome (IBH-HPS) caused by fowl adenovirus type 4 (FAdV-4) has caused huge economic losses for China in the past five years. At present, this disease is controlled in many flocks with the inactivated FAdV vaccine, but the offspring chicks of a layer breeding flock that were vaccinated with this vaccine still became infected and developed IBH-HPS with a 20% mortality rate. Analysis revealed that the NDV-attenuated vaccine in use from the above-mentioned poultry farm was simultaneously contaminated with FAdV-4 and chicken infectious anemia virus (CIAV). The FAdV and CIAV isolated from the vaccine were purified for the artificial preparation of an NDV-attenuated vaccine singly contaminated with FAdV or CIAV, or simultaneously contaminated with both of them. Seven-day-old layers with maternal FAdV antibody were inoculated with the artificially prepared, contaminated vaccines and assessed for corresponding indices. The experiments showed that no obvious symptoms occurred after using the NDV-attenuated vaccine singly contaminated with FAdV or CIAV; however, common IBH and occasional HPS-related death was found in birds after administering the NDV-attenuated vaccine co-contaminated with FAdV and CIAV. In conclusion, this study illustrated that CIAV could assist FAdV in breaking maternal FAdV antibody protection, which then caused the IBH-HPS after vaccination with the co-contaminated NDV vaccine.
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Affiliation(s)
- Q Su
- College of Veterinary Medicine, Shandong Agricultural University, Shandong, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
| | - F Meng
- College of Veterinary Medicine, Shandong Agricultural University, Shandong, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
| | - Y Li
- College of Veterinary Medicine, Shandong Agricultural University, Shandong, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China.,China Animal Health and Epidemiology Center, Qingdao, 266032, China
| | - Y Zhang
- College of Veterinary Medicine, Shandong Agricultural University, Shandong, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
| | - Z Zhang
- College of Veterinary Medicine, Shandong Agricultural University, Shandong, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
| | - Z Cui
- College of Veterinary Medicine, Shandong Agricultural University, Shandong, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
| | - S Chang
- College of Veterinary Medicine, Shandong Agricultural University, Shandong, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
| | - P Zhao
- College of Veterinary Medicine, Shandong Agricultural University, Shandong, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
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13
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Su Q, Liu X, Li Y, Meng F, Cui Z, Chang S, Zhao P. The intracorporal interaction of fowl adenovirus type 4 and LaSota strain significantly aggravates the pathogenicity of one another after using contaminated Newcastle disease virus-attenuated vaccine. Poult Sci 2019; 98:613-620. [DOI: 10.3382/ps/pey129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Accepted: 09/19/2018] [Indexed: 12/15/2022] Open
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14
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Su Q, Zhang Y, Li Y, Cui Z, Chang S, Zhao P. Epidemiological investigation of the novel genotype avian hepatitis E virus and co-infected immunosuppressive viruses in farms with hepatic rupture haemorrhage syndrome, recently emerged in China. Transbound Emerg Dis 2018; 66:776-784. [PMID: 30484967 DOI: 10.1111/tbed.13082] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 10/24/2018] [Accepted: 11/20/2018] [Indexed: 01/25/2023]
Abstract
Since 2016, hepatic rupture haemorrhage syndrome (HRHS) appeared in chickens of China and caused huge economic loss. To assess the infection status of the avian hepatitis E virus (HEV) and co-infected viruses, including avian leukosis virus (ALV), reticuloendotheliosis virus (REV), fowl adenovirus (FAdV), and chicken infectious anaemia virus (CIAV), in farms with HRHS, 180 liver samples were collected from 24 farms in different provinces and detected by strict molecular virology methods. Results showed that the positive rates of HEV, ALV, REV, FAdV, and CIAV were 74.44%, 20.00%, 27.78%, 31.11%, and 12.22%, respectively, whereas there are also 112 samples with co-infection, for a rate of 58%. Meanwhile, the positive rate of HEV decreased gradually with age; the lowest positive rate of ALV (5.76%) and REV (19.23%) appeared in 25-35 weeks age, during which the positive rate of CIAV was the highest (19.23%); the positive rate of HEV in layers (64.00%) was lower than that of broilers (83.33%), but the positive rates of ALV (38.46%) and CIAV (15.38%) in layers were higher than that of broilers (5.88%, 9.80%); the positive rates of HEV (75.88%) and CIAV (15.60%) in parental generation (PG) were higher than that of commodity generation (CG, 64.10%, 0.00%), whereas the positive rate of ALV showed inverse relationship (PG: 14.89%; CG: 38.46%). Additionally, phylogenetic analysis showed that all the avian HEV identified this study belong to a novel genotype, and found the close relationship between the wild strains (REV and CIAV) and corresponding isolates from contaminated vaccine. The data presented in this report will enhance the current understanding of the epidemiology characteristics in farms with HRHS in China.
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Affiliation(s)
- Qi Su
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
| | - Yawen Zhang
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
| | - Yang Li
- China Animal Health and Epidemiology Center, Qingdao, Shandong, China
| | - Zhizhong Cui
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
| | - Shuang Chang
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
| | - Peng Zhao
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
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15
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Dong G, Meng F, Zhang Y, Cui Z, Lidan H, Chang S, Zhao P. Development and evaluation of a droplet digital PCR assay for the detection of fowl adenovirus serotypes 4 and 10 in attenuated vaccines. J Virol Methods 2018; 265:59-65. [PMID: 30222990 DOI: 10.1016/j.jviromet.2018.09.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 09/12/2018] [Indexed: 01/13/2023]
Abstract
In recent years, there has been an increase in reported cases of fowl adenovirus serotype 4 (FAdV-4) in chickens in China. The use of live attenuated vaccines contaminated with FAdV-4 has been proved to be one of the important causes of massive outbreaks of hydropericardium syndrome. To detect the contamination with FAdV-4 in attenuated vaccines more promptly and accurately, a droplet digital PCR (ddPCR) assay was developed for the rapid detection of FAdV-4 and FAdV-10. The ability of this assay to detect FAdV-4 contamination in attenuated Newcastle disease virus vaccines was assessed in comparison to a quantitative real-time PCR (qPCR) and a conventional PCR assay. The findings indicated that the ddPCR assay could detect FAdV-4 contamination at 0.1 EID50/1,000 feathers, while the qPCR could detect FAdV-4 contamination at 1 EID50/1,000 feathers with identical genomic targets, which was 1,000-fold more sensitive than conventional PCR detection with a sensitivity of 102 EID50/1,000 feathers. The ddPCR assay also showed high specificity for FAdV-4/10 and no positive signals were detected for other FAdVs. Consequently, the intuitive and rapid results were especially suitable for the detection of FAdV-4 contamination in vaccines. In this study, a ddPCR assay was developed to effectively detect and quantify low-dose FAdV-4 contamination, providing a new method for rapid detection of FAdV-4 contamination in various samples, especially vaccines.
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Affiliation(s)
- Guiwei Dong
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
| | - Fanfeng Meng
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China; Beijing Dafaun Poultry Breeding Company Ltd., Beijing, China
| | - Yubiao Zhang
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
| | - Zhizhong Cui
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China
| | - Hou Lidan
- China Insititute of Veterinary Drug Control, Beijing, China.
| | - Shuang Chang
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China.
| | - Peng Zhao
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, China.
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16
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Su Q, Li Y, Zhang Y, Zhang Z, Meng F, Cui Z, Chang S, Zhao P. Newcastle disease virus-attenuated vaccine LaSota played a key role in the pathogenicity of contaminated exogenous virus. Vet Res 2018; 49:80. [PMID: 30081944 PMCID: PMC6080498 DOI: 10.1186/s13567-018-0577-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 07/26/2018] [Indexed: 12/01/2022] Open
Abstract
Newcastle disease virus (NDV)-attenuated vaccine has been widely used since the 1950s and made great progress in preventing and controlling Newcastle disease. However, many reports mention exogenous virus contamination in attenuated vaccines, while co-contamination with fowl adenovirus (FAdV) and chicken infectious anaemia virus (CIAV) in the NDV-attenuated vaccine also emerged in China recently, which proved to be an important reason for the outbreaks of inclusion body hepatitis–hydropericardium syndrome in some flocks. It is amazing that exogenous virus contamination at extremely low doses still infected chickens and induced severe disease; thus, we speculated that there must be some interaction between the NDV-attenuated vaccine and the contaminated exogenous viruses within. Accordingly, simulation experiments were launched using FAdV and CIAV isolated from the abovementioned vaccine. The results showed that the pathogenicity of FAdV and CIAV co-infection through the contaminated vaccine was significantly higher than that of direct oral infection, while the synergistic reaction of these viruses and LaSota prompted their multiplication in vivo and disturbed the production of antibodies against each other. This study showed the interactions of FAdV, CIAV and LaSota after using contaminated NDV-attenuated vaccine, helping us to understand how the contaminated exogenous viruses cause infection and induce severe disease at a relatively low dose through the oral route.
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Affiliation(s)
- Qi Su
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, 61 Daizong Street, Tai'an, 271018, Shandong, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, 61 Daizong Street, Tai'an, 271018, Shandong, China
| | - Yang Li
- China Animal Health and Epidemiology Center, 369 Nanjing Street, Qingdao, 266000, Shandong, China
| | - Yawen Zhang
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, 61 Daizong Street, Tai'an, 271018, Shandong, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, 61 Daizong Street, Tai'an, 271018, Shandong, China
| | - Zhihui Zhang
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, 61 Daizong Street, Tai'an, 271018, Shandong, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, 61 Daizong Street, Tai'an, 271018, Shandong, China
| | - Fanfeng Meng
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, 61 Daizong Street, Tai'an, 271018, Shandong, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, 61 Daizong Street, Tai'an, 271018, Shandong, China
| | - Zhizhong Cui
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, 61 Daizong Street, Tai'an, 271018, Shandong, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, 61 Daizong Street, Tai'an, 271018, Shandong, China
| | - Shuang Chang
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, 61 Daizong Street, Tai'an, 271018, Shandong, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, 61 Daizong Street, Tai'an, 271018, Shandong, China
| | - Peng Zhao
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, China. .,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, 61 Daizong Street, Tai'an, 271018, Shandong, China. .,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, 61 Daizong Street, Tai'an, 271018, Shandong, China.
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17
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Su Q, Li Y, Meng F, Cui Z, Chang S, Zhao P. Newcastle disease virus-attenuated vaccine co-contaminated with fowl adenovirus and chicken infectious anemia virus results in inclusion body hepatitis-hydropericardium syndrome in poultry. Vet Microbiol 2018; 218:52-59. [PMID: 29685221 DOI: 10.1016/j.vetmic.2018.03.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 02/22/2018] [Accepted: 03/16/2018] [Indexed: 01/24/2023]
Abstract
Inclusion body hepatitis-hydropericardium syndrome (IBH-HPS) induced by fowl adenovirus type 4 (FAdV-4) has caused huge economic losses to the poultry industry of China, but the source of infection for different flocks, especially flocks with high biological safety conditions, has remained unclear. This study tested the pathogenicity of Newcastle disease virus (NDV)-attenuated vaccine from a large-scale poultry farm in China where IBH-HPS had appeared with high mortality. Analysis revealed that the NDV-attenuated vaccine in use from the abovementioned poultry farm was simultaneously contaminated with FAdV-4 and chicken infectious anemia virus (CIAV). The FAdV and CIAV isolated from the vaccine were purified for the artificial preparation of an NDV-attenuated vaccine singly contaminated with FAdV or CIAV, or simultaneously contaminated with both of them. Seven-day-old specific pathogen-free chicks were inoculated with the artificially prepared contaminated vaccines and tested for corresponding indices. The experiments showed that no hydropericardium syndrome (HPS) and corresponding death occurred after administering the NDV-attenuated vaccine singly contaminated with FAdV or CIAV, but a mortality of 75% with IBH-HPS was commonly found in birds after administering the NDV-attenuated vaccine co-contaminated with FAdV and CIAV. In conclusion, this study found the co-contamination of FAdV-4 and CIAV in the same attenuated vaccine and confirmed that such a contaminated attenuated vaccine was a significant source of infection for outbreaks of IBH-HPS in some flocks.
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Affiliation(s)
- Qi Su
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China
| | - Yang Li
- China Animal Health and Epidemiology Center, 369 Nanjing Street, Qingdao, Shandong, 266000, China
| | - Fanfeng Meng
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China
| | - Zhizhong Cui
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China
| | - Shuang Chang
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China
| | - Peng Zhao
- College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China.
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