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Goraichuk IV, Msoffe PLM, Chiwanga GH, Dimitrov KM, Afonso CL, Suarez DL. Complete genome sequence of seven virulent Newcastle disease virus isolates of sub-genotype XIII.1.1 from Tanzania. Microbiol Resour Announc 2023; 12:e0040523. [PMID: 37750692 PMCID: PMC10586168 DOI: 10.1128/mra.00405-23] [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: 05/13/2023] [Accepted: 08/08/2023] [Indexed: 09/27/2023] Open
Abstract
We report the complete genome sequences of seven virulent Newcastle disease viruses (NDVs) that were isolated from chickens from live bird markets in the Arusha, Iringa, Mbeya, and Tanga regions of Tanzania in 2012. Phylogenetic analysis revealed that all isolates belong to sub-genotype XIII.1.1.
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Affiliation(s)
- Iryna V. Goraichuk
- Exotic and Emerging Avian Viral Disease Research Unit, Southeast Poultry Research Laboratory, U.S. National Poultry Research Center, ARS, USDA, Athens, Georgia, USA
- National Scientific Center Institute of Experimental and Clinical Veterinary Medicine, Kharkiv, Ukraine
| | - Peter L. M. Msoffe
- Department of Veterinary Medicine and Public Health, Sokoine University of Agriculture, Morogoro, Tanzania
| | | | - Kiril M. Dimitrov
- Exotic and Emerging Avian Viral Disease Research Unit, Southeast Poultry Research Laboratory, U.S. National Poultry Research Center, ARS, USDA, Athens, Georgia, USA
- Texas A&M Veterinary Medical Diagnostic Laboratory, College Station, Texas, USA
| | - Claudio L. Afonso
- Exotic and Emerging Avian Viral Disease Research Unit, Southeast Poultry Research Laboratory, U.S. National Poultry Research Center, ARS, USDA, Athens, Georgia, USA
| | - David L. Suarez
- Exotic and Emerging Avian Viral Disease Research Unit, Southeast Poultry Research Laboratory, U.S. National Poultry Research Center, ARS, USDA, Athens, Georgia, USA
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Babaeimarzangou SS, Molouki A, Talebi A, Allymehr M, Allahyari E, Soltani M. Molecular characterization and phylogenetic study of the hemagglutinin-neuraminidase gene of newcastle disease virus isolated from peacock (Pavo cristatus) and Turkey (Meleagris) and its comparison with broiler isolates. Arch Microbiol 2023; 205:253. [PMID: 37254016 DOI: 10.1007/s00203-023-03592-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/05/2023] [Accepted: 05/18/2023] [Indexed: 06/01/2023]
Abstract
Newcastle disease has been endemic within the Iranian poultry industry for decades. However, the genetic nature of the circulating Hemagglutinin-Neuraminidase (HN) gene among Iranian domesticated bird populations is broadly unexplored. The presented study was carried out to gain insights into the biological and molecular characterization of four complete HN genes isolated from turkey, peacock, and broiler isolates in Iran between 2018 and 2020. The phylogenetic analysis revealed that the isolates belong to the Newcastle disease virus (NDV) subgenotype VII.1.1, previously known as VIIL. Further analysis demonstrated the thermostable substitutions S315P and I369V within the isolates. Finding the N-glycosylation site (NIS) at positions 144-146 and the cysteine residue 123 might influence the fusogenicity abilities of the isolates, while identification of multiple amino acid substitutions in both antigenic sites, especially I514V and E347Q, and the binding sites of the HN protein, raised concern about the pathogenicity of the isolates. In addition, the annual rate of change based on the HN gene of Iranian NDV was calculated at about 1.8088E-3 between 2011 and 2020. In conclusion, a new NDV variant with multiple site mutagenesis is circulating not only among chickens but also in turkey and captive birds such as peafowls, and failure of routine vaccination programs could be attributed to the differences between circulating NDV strains and those used in vaccine manufacturing. Therefore, future legislation aimed at providing vaster vaccination cover and biosecurity plans will be needed to control the spread of circulating NDV strains.
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Affiliation(s)
- Seyed Sajjad Babaeimarzangou
- Division of Poultry Health and Diseases, Department of Clinical Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
| | - Aidin Molouki
- Department of Avian Diseases Research and Diagnostics, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
| | - Alireza Talebi
- Division of Poultry Health and Diseases, Department of Clinical Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Manochehr Allymehr
- Division of Poultry Health and Diseases, Department of Clinical Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | | | - Mohammad Soltani
- Graduated from Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
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Li J, Ding J, Chen M, Chen K, Zou Y, Xu X, Zhang D, Yu X, Ding Z. Transcriptome-wide N6-methyladenosine modification profiling of mRNAs during infection of Newcastle disease virus in chicken macrophages. Virus Res 2023; 323:198993. [PMID: 36326508 PMCID: PMC10194374 DOI: 10.1016/j.virusres.2022.198993] [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: 08/16/2022] [Revised: 10/15/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022]
Abstract
N6-methyladenosine (m6A) modification, the most prevalent post-transcriptional modification of eukaryotic mRNAs, is reported to play a crucial role in viral infection. However, the role of m6A modification during Newcastle disease virus (NDV) infection has remained unclear. In this study, we performed MeRIP-seq to investigate the transcriptome-wide m6A methylome and m6A-modified genes in NDV-infected chicken macrophages. A total of 9496 altered peaks were identified, of which 7015 peaks were significantly upregulated across 3320 genes, and 2481 peaks were significantly down-regulated across 1264 genes. Combined analysis of m6A peaks and mRNA expression showed that 1234 mRNAs had significantly altered levels of methylation and expression after NDV infection, and m6A modification tended to have a negative relationship with mRNA expression, suggesting that m6A modification may regulate the process of NDV infection by regulating gene expression, particularly of the genes important in the innate immune response. To the best of our knowledge, this is the first comprehensive characterization of m6A patterns in chicken macrophage mRNA after NDV infection, providing a valuable basis for further exploring the role of m6A modification mechanisms during the course of NDV infection.
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Affiliation(s)
- Jindou Li
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Jiaxin Ding
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Minghua Chen
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Kainan Chen
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Yinxue Zou
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Xiaohong Xu
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Di Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Xibing Yu
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Zhuang Ding
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China.
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Hu Z, He X, Deng J, Hu J, Liu X. Current situation and future direction of Newcastle disease vaccines. Vet Res 2022; 53:99. [DOI: 10.1186/s13567-022-01118-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 10/11/2022] [Indexed: 11/28/2022] Open
Abstract
AbstractNewcastle disease (ND) is one of the most economically devastating infectious diseases affecting the poultry industry. Virulent Newcastle disease virus (NDV) can cause high mortality and severe tissue lesions in the respiratory, gastrointestinal, neurological, reproductive and immune systems of poultry. Tremendous progress has been made in preventing morbidity and mortality caused by ND based on strict biosecurity and wide vaccine application. In recent decades, the continual evolution of NDV has resulted in a total of twenty genotypes, and genetic variation may be associated with disease outbreaks in vaccinated chickens. In some countries, the administration of genotype-matched novel vaccines in poultry successfully suppresses the circulation of virulent NDV strains in the field. However, virulent NDV is still endemic in many regions of the world, especially in low- and middle-income countries, impacting the livelihood of millions of people dependent on poultry for food. In ND-endemic countries, although vaccination is implemented for disease control, the lack of genotype-matched vaccines that can reduce virus infection and transmission as well as the inadequate administration of vaccines in the field undermines the effectiveness of vaccination. Dissection of the profiles of existing ND vaccines is fundamental for establishing proper vaccination regimes and developing next-generation vaccines. Therefore, in this article, we provide a broad review of commercial and experimental ND vaccines and promising new platforms for the development of next-generation vaccines.
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Hejazi Z, Tabatabaeizadeh S, Toroghi R, Farzin H, Saffarian P. First detection and characterisation of sub-genotype XIII.2.1 Newcastle disease virus isolated from backyard chickens in Iran. Vet Med Sci 2022; 8:2521-2531. [PMID: 36084260 PMCID: PMC9677366 DOI: 10.1002/vms3.928] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND Newcastle disease (ND) is an economically significant poultry disease worldwide. During field surveillance for ND in 2010 in Iran, a backyard chicken flock showed clinical signs of ND with 100% mortality. OBJECTIVES We aimed to characterise genetically, biologically and epidemiologically an exotic virulent ND virus (NDV) detected in Iran. METHODS After observing high mortality, dead birds were sampled and then disposed of by burial, and the chicken house was disinfected. Tissue samples were molecularly tested for NDV. The genetic homogeneity of the isolate RT30/2010 was tested by plaque assay, and then a large virus plaque was used for the second step of plaque purification. Fusion and matrix complete genes were sequenced and used for genotyping and epidemiological tracing. We tested biological pathotypes using mean death time (MDT) and intracerebral pathogenicity index (ICPI) assays. RESULTS The isolate formed heterogeneous plaques in chicken embryo fibroblast cells. The second step of plaque purification produced homogeneous and large plaques. Phylogenetic analysis using both genes classified the virus into sub-genotype XIII.2.1. Nucleic acid and amino acid identities of RT30/2010 fusion gene with the closest available isolate SPVC/Karachi/NDV/43 are 97.95% and 98.73%, respectively. Isolate has 112 RRRKRF117 motif at the fusion cleavage site, and pathogenicity tests showed MDT of 56.4 h and ICPI of 1.85. CONCLUSIONS This study presents the first detection and characterisation of a velogenic NDV of sub-genotype XIII.2.1 from Iran. Our follow-up surveillance for ND shows that timely virus detection and carcass management have led to the cessation of virus transmission in Iran.
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Affiliation(s)
- Zahra Hejazi
- Department of Microbiology, Science and Research BranchIslamic Azad UniversityTehranIran
| | - Seyed‐Elias Tabatabaeizadeh
- Mashhad Branch, Razi Vaccine and Serum Research InstituteAgricultural ResearchEducation and Extension Organization (AREEO)MashhadIran
| | - Reza Toroghi
- Mashhad Branch, Razi Vaccine and Serum Research InstituteAgricultural ResearchEducation and Extension Organization (AREEO)MashhadIran
| | - Hamidreza Farzin
- Mashhad Branch, Razi Vaccine and Serum Research InstituteAgricultural ResearchEducation and Extension Organization (AREEO)MashhadIran
| | - Parvaneh Saffarian
- Department of Microbiology, Science and Research BranchIslamic Azad UniversityTehranIran
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Allahyari E, Allymehr M, Molouki A, Fallah Mehrabadi MH, Talebi A. Molecular characterisation and phylogenetic study of the fusion gene of Newcastle disease viruses isolated from broiler farms of Iran in 2018-2019. BULGARIAN JOURNAL OF VETERINARY MEDICINE 2022. [DOI: 10.15547/bjvm.2020-0041] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Avian orthoavulavirus, commonly known as Newcastle disease virus (NDV) has been a constant threat for the poultry industry of Iran for decades. Recently, a couple of preliminary studies on backyard and commercial chicken suggested that a major subgenotype circulating in Iran may be VII(L) subgenotype, which is now known as VII.1.1 according to the new classification system. The unique subgenotype was not reported from other parts of the world and was slightly (≥3%) different from the closest group that was VIId. The study was conducted between July 2018 and March 2019 to determine the exact NDV genotypes/subgenotypes circulating in Iranian broiler poultry farms; five-hundred and forty chickens were sampled from thirty-six broiler farms located in eighteen provinces of Iran. As other genotypes/subgenotypes such as XIII and VI.2 are circulating in neighbouring countries, border provinces were also sampled. The F gene of the NDV isolates was sequenced and phylogenetic analysis was conducted. All the isolates clustered under the VII.1.1 group. The evolutionary analysis also revealed that the distances were between 0.0 and 0.7% meaning that the Iranian NDV circulating in broiler farms were not only of VII.1.1 sub-genotype, but also genetically very identical, indicating that the routine control measures for ND in Iran were not able to prevent the circulating NDVs. Although stricter biosecurity measures have been really effective in developed countries, surveillance of NDV to determine the circulating genotypes might also help us to implement better vaccination strategies in the future.
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Affiliation(s)
- E. Allahyari
- Division of Poultry Health & Diseases, Department of Clinical sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - M. Allymehr
- Division of Poultry Health & Diseases, Department of Clinical sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - A. Molouki
- Department of Avian Diseases Research and Diagnosis, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - M. H. Fallah Mehrabadi
- Department of Avian Diseases Research and Diagnosis, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - A. Talebi
- Division of Poultry Health & Diseases, Department of Clinical sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
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Characterization of Newcastle disease virus in broiler flocks with respiratory symptoms in some provinces of Iran. Mol Biol Rep 2021; 48:7281-7291. [PMID: 34623594 DOI: 10.1007/s11033-021-06728-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 09/28/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Newcastle disease, is one of the most important diseases of the poultry industry, has many economic losses. The aim of this study was to isolate and determine the molecular identity of Newcastle disease virus in 40 broiler flocks with respiratory symptoms in four provinces of Iran. METHODS AND RESULTS Samples of farms with respiratory symptoms were collected from different regions of Isfahan, East Azerbaijan, Golestan, and Khuzestan provinces and inoculated into 9-day-old embryonated chicken eggs. The Reverse-transcription polymerase chain reaction (RT-PCR) was performed to detect the Newcastle disease virus in allantoic fluid. Of the 40 flocks, the virus was isolated and identified in 16 flocks. The PCR products of 16 isolates were sequenced, and a phylogenetic tree was drawn. Accordingly, six isolates were in genotype II and ten isolates were in subgenotype VII.1.1 (VIId) of class II. CONCLUSION Both genotypes were present in all four provinces. The isolates of Khuzestan province showed the greatest diversity compared to the other three provinces. The similarity of isolates belonging to genotype II in this study was observed with Pakistan, China, and Nigeria, and other isolates were similar to previous isolates in Iran. Also, the highest amino acid sequence in the F-protein cleavage site was 112RRQKR/F117 for VII.1.1 (VIId) genotype isolates and 112GRQGR/L117 for II genotype isolates.
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Predominance of Fourth Panzootic Newcastle Disease Virus Subgenotype VII.1.1 in Iran and Its Relation to the Genotypes Circulating in the Region. Curr Microbiol 2021; 78:3068-3078. [PMID: 34165608 DOI: 10.1007/s00284-021-02572-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 06/11/2021] [Indexed: 10/21/2022]
Abstract
Following recent Newcastle disease virus (NDV) outbreaks in Iranian poultry farms which were mostly associated with lesions of the avian gastrointestinal tract, it was speculated that the scale of the outbreaks could be attributed in part to co-circulating infectious agents or a new NDV genotype/subgenotype. This speculation was due to the isolation of a few 5th panzootic subgenotype VII.2 viruses from Iranian poultry farms in 2017. Samples from different species of commercial and domestic birds were collected from different provinces of Iran, 19 of which were selected for the current study. Phylogenetic analyses showed that the recent outbreaks have been caused by only one agent, i.e. the distinctive NDV subgenotype VII.1.1 (previously known VIIl) viruses that seem to be circulating predominantly in Iran, but have also been sporadically reported from Iraq among neighbouring countries. At most, 96.3-96.7% BLAST identity to non-Iranian VII.1.1 isolates was observed. Genetic distance values of <1% were indicative of high similarity between the isolates, but the values were approaximately 2% when the current isolates were compared to the earliest recorded Iranian VII.1.1 viruses isolated in 2010. Using Bayesian analysis, annual mutation rates of 1.7156E-3 (strict) and 1.9902E-3 (relaxed) over 11 years were obtained. In addition, we report that our laboratories have not detected any genotype XIII strains since 2011. Following up on previous reports, we concluded that currently, and except in Columbiforms, subgenotype VII.1.1 may likely be the predominant subgenotype in many bird species in Iran despite the subgenotype VII.2 being predominant in neighbouring countries.
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Karamendin K, Kydyrmanov A. Cormorants as a Potentially Important Reservoir and Carrier of Newcastle Disease Virus on the Asian Continent. Front Vet Sci 2021; 8:648091. [PMID: 34195243 PMCID: PMC8236515 DOI: 10.3389/fvets.2021.648091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 05/21/2021] [Indexed: 11/13/2022] Open
Abstract
Despite numerous disease prevention measures and control programs, Newcastle disease (ND) remains one of the most significant infections in poultry worldwide, especially in developing countries. It is known that wild birds, mainly of the Anseriformes order, are the main carrier of lentogenic (non-pathogenic) variants of Newcastle disease virus (NDV) in nature. But the question of the reservoir of velogenic (highly pathogenic) NDV in nature still remains open. In the 1970s, 1990s, and 2000s in North America during epizootics among cormorants, velogenic NDV strains were isolated. It was later concluded that cormorants play an important role in the maintenance and circulation of NDV in North America. New data have been obtained on the circulation of velogenic NDV strains in wild birds in Central Asia: VIIb and XIII genotype strains were isolated from cormorants for the first time in Kazakhstan. Interestingly, outbreaks of NDV registered in poultry in Central and Southern Asia were phylogenetically close to the viruses from cormorants that support the idea that cormorants can serve as the potential reservoir of velogenic NDV in developing countries of Asia. The seasonal migrations of cormorants may contribute to the distribution of the virus throughout Asia but more evidence must be obtained to confirm this hypothesis. There is increasing evidence of the introduction of NDV into the poultry farms from wild nature worldwide. This article continues the discussion on the likelihood of cormorants to serve as a reservoir and carrier of NDV on the Asian continent.
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Affiliation(s)
- Kobey Karamendin
- Laboratory of Viral Ecology, Scientific and Production Center of Microbiology and Virology, Almaty, Kazakhstan.,Kazakh National Agrarian University, Almaty, Kazakhstan
| | - Aidyn Kydyrmanov
- Laboratory of Viral Ecology, Scientific and Production Center of Microbiology and Virology, Almaty, Kazakhstan.,Kazakh National Agrarian University, Almaty, Kazakhstan
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Saputri ME, Poetri ON, Soejoedono RD. Phylogenetic studies of Newcastle disease virus isolated from poultry flocks in South Sulawesi Province, Indonesia, in 2019. J Adv Vet Anim Res 2021; 8:129-137. [PMID: 33860023 PMCID: PMC8043355 DOI: 10.5455/javar.2021.h495] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 12/02/2020] [Accepted: 12/05/2020] [Indexed: 11/13/2022] Open
Abstract
Objective: Indonesia is one of the Newcastle disease (ND) endemic countries in the world. An outbreak of the ND virus (NDV) was first reported in Indonesia in 1926. This study aimed to detect, isolate, and classify the NDV by molecular approaches from poultry farms in South Sulawesi Province of Indonesia in 2019. Materials and Methods: As many as 36 pooling samples from the cloacal swab, trachea swab, proventriculus, and spleen tissues obtained from ND-suspected chickens were isolated in 11-day-old embryonated chicken eggs type-specific antibody-negative. The viruses were confirmed by reverse transcription-polymerase chain reaction (RT-PCR), followed by sequencing. Results: The results showed that 18 out of 36 pooling samples were NDV-positive based on the isolation result and RT-PCR test. The sequencing results showed that 10 NDV isolates had a motif 112R-R-Q-K-R-F117 in the fusion protein cleavage site region, which suggested that the NDV isolates were of virulent pathotype. The phylogenetic studies based on the F gene’s partial nucleotide sequence classified the study isolates into NDV virus genotype/subgenotype VII.2. Conclusion: These findings are expected to help provide the latest characteristic information of NDV in South Sulawesi Province to determine the seed vaccine for control strategies of ND.
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Affiliation(s)
- Meliana Eka Saputri
- Study Program Medical Microbiology, Faculty of Veterinary Medicine, IPB University, Bogor, Indonesia
| | - Okti Nadia Poetri
- Department of Animal Diseases and Veterinary Public Health, Faculty of Veterinary Medicine, IPB University, Bogor, Indonesia
| | - Retno Damajanti Soejoedono
- Department of Animal Diseases and Veterinary Public Health, Faculty of Veterinary Medicine, IPB University, Bogor, Indonesia
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Kiani MH, Bozorgmehrifard MH, Hosseini H, Charkhkar S, Ghalyanchilangeroudi A. Hemagglutinin-neuraminidase Sequence and Phylogenetic Analysis of Two Newcastle Disease Virus Isolated from Chickens in Iran. ARCHIVES OF RAZI INSTITUTE 2021; 76:31-39. [PMID: 33818955 DOI: 10.22092/ari.2019.124844.1289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 08/27/2019] [Indexed: 09/30/2022]
Abstract
Newcastle disease is a highly contagious viral infection affecting many species of birds that can spread fast between poultry houses and cause a heavy economic burden on the poultry industry all around the world. Fusion and hemagglutinin-neuraminidase (HN) protein are important in the pathogenesis of the Newcastle disease virus (NDV). The HN protein is a critical viral protein with multiple functions and plays a key role in the formation of the virulence of NDV. Head of HN protein is responsible for receptor binding, neuraminidase activity. This study aimed to investigate the sequence homology of hemagglutinin-neuraminidase of two NDV isolates sampled from infected farms in Iran. The samples were collected from flocks that had been vaccinated by both types of live and killed vaccines for NDV. After isolation of NDV, the viruses were subjected to the polymerase chain reaction (PCR) amplification using two pairs of specific primers designed for the HN gene to amplify the complete HN gene (1730bp). Afterward, the PCR products were sequenced and analyzed by phylogenetic tree construction software. Based on the analysis, substantial sequence homology among Iranian isolates is within the range of 97.1-100%. Moreover, the sequence homology searching revealed a level of similarity between HN sequences of Iranian isolates and the HN sequences from other countries, particularly Asian ones. For instance, a high homology ratio (95.34%) was found between Iranian isolates and the sequences registered on online molecular databases from China. Based on phylogenetic analysis, the NDV isolates belong to the VIId genotype. Finally, it can be concluded that monitoring the circulation of NDVs among poultry and other birds can help to obtain an insight into the evolution of NDVs and control of panzootic viruses in the future.
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Affiliation(s)
- M H Kiani
- Department of Poultry and Obstetrics, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - M H Bozorgmehrifard
- Department of Poultry and Obstetrics, Science and Research Branch, Islamic Azad University, Tehran, Iran.,Department of Poultry and Obstetrics, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - H Hosseini
- Department of Clinical Science, Faculty of Veterinary Medicine, Karaj Branch, Islamic Azad University, Alborz, Iran
| | - S Charkhkar
- Department of Poultry and Obstetrics, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - A Ghalyanchilangeroudi
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
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Karamendin K, Kydyrmanov A, Kasymbekov Y, Daulbayeva K, Khan E, Seidalina A, Sayatov M, Gavrilov A, Fereidouni S. Cormorants as Potential Victims and Reservoirs of Velogenic Newcastle Disease Virus (Orthoavulavirus-1) in Central Asia. Avian Dis 2020; 63:599-605. [PMID: 31865674 DOI: 10.1637/aviandiseases-d-19-00092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 07/01/2019] [Indexed: 11/05/2022]
Abstract
Virulent strains of avian orthoavulavirus 1, historically known as Newcastle disease virus (NDV), are widespread and cause high levels of mortality in poultry worldwide. Wild birds may play an important role in the maintenance of Avian orthoavulavirus 1 in nature. Prior to 2014, most of the lentogenic NDV strains isolated from Central Asia were obtained from the avian order Anseriformes (ducks and geese). Wild birds were monitored from 2014-2016 to detect the circulation of NDV. A total of 1522 samples belonging to 73 avian species were examined, and 26 positive samples were identified. The isolates of Avian orthoavulavirus 1 belonged to three genotypes: viruses from doves (Columbiformes) and cormorants (Suliformes) were attributed to the velogenic genotypes VI and XIII, respectively, while the isolate from poultry belonged to lentogenic genotype I. The isolation of Avian orthoavulavirus 1 from doves may confirm their role as a reservoir of pigeon paramyxoviruses (antigenic variant of the genotype VI NDV) in nature and indicates the potential threat of introduction of velogenic strains into the poultry population. Our study describes an epizootic scenario in Kazakhstan among cormorants with mortality among juveniles of up to 3 wk of age and isolation of the NDV from apparently healthy birds. These observations may support the idea that cormorants are one of the potential reservoirs and victims of velogenic Avian orthoavulavirus 1 in Central Asia. The seasonal migrations of cormorants may partially contribute to viral dissemination throughout the continent; however, this hypothesis needs more evidence.
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Affiliation(s)
- Kobey Karamendin
- Scientific and Production Center for Microbiology and Virology, 103 Bogenbay batyr Str., 050010, Almaty, Kazakhstan,
| | - Aidyn Kydyrmanov
- Scientific and Production Center for Microbiology and Virology, 103 Bogenbay batyr Str., 050010, Almaty, Kazakhstan
| | - Yermukhammet Kasymbekov
- Scientific and Production Center for Microbiology and Virology, 103 Bogenbay batyr Str., 050010, Almaty, Kazakhstan
| | - Klara Daulbayeva
- Scientific and Production Center for Microbiology and Virology, 103 Bogenbay batyr Str., 050010, Almaty, Kazakhstan
| | - Elizaveta Khan
- Scientific and Production Center for Microbiology and Virology, 103 Bogenbay batyr Str., 050010, Almaty, Kazakhstan
| | - Aigerim Seidalina
- Scientific and Production Center for Microbiology and Virology, 103 Bogenbay batyr Str., 050010, Almaty, Kazakhstan
| | - Marat Sayatov
- Scientific and Production Center for Microbiology and Virology, 103 Bogenbay batyr Str., 050010, Almaty, Kazakhstan
| | - Andrey Gavrilov
- Institute of Zoology, 93 al Farabi Str., 050060, Almaty, Kazakhstan
| | - Sasan Fereidouni
- Research Institute of Wildlife Ecology, University of Veterinary Medicine Vienna, Savoyenstrasse 1, Vienna, Austria
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Amanollahi R, Asasi K, Abdi-Hachesoo B. Effect of Newcastle disease and infectious bronchitis live vaccines on the immune system and production parameters of experimentally infected broiler chickens with H9N2 avian influenza. Comp Immunol Microbiol Infect Dis 2020; 71:101492. [PMID: 32417570 DOI: 10.1016/j.cimid.2020.101492] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 04/15/2020] [Accepted: 04/20/2020] [Indexed: 11/16/2022]
Abstract
H9N2 Avian influenza (AI) is an infectious disease which considered to have low pathogenic virulence, but in the case of coinfection with other pathogens it has the potential to become a major threat to the poultry industry. Infectious bronchitis (IB) and Newcastle diseases (ND) are other common problems to the poultry industry, which there are an extensive vaccination program against these viral pathogens. To investigate the effects of administration of infectious bronchitis and Newcastle disease live vaccines (IBLVs and NDLVs) in the presence of H9N2 AI infection on the immune system and some production parameters, 180 one-day-old broiler chicks were randomly allocated into six groups with different vaccination programs including H120 IBLV, 4/91 IBLV, B1 NDLV and LaSota NDLV. At the age of 20 days, all birds of the experimental groups except the negative control group, were inoculated intra-nasally (at dose of 106 EID50) with H9N2 AIV. After the inoculation, gross and microscopic lesions of the immune organs, serological changes and some production parameters were examined. The findings of this study showed that coinfection of H9N2 AI with NDLVs exacerbated the gross and microscopic injuries in the immune organs; especially the bursa of Fabricius. LaSota + AIV group had the most severe lesion in the bursa of Fabricius, spleen and thymus. Furthermore, the birds of LaSota + AIV group consumed the least amount of feed and water and their final body weight were significantly (P ≤ 0.05) lower in comparison with the other groups. Interestingly, in the context of this experiment both 4/91 and H120 IB live vaccines enhanced the HI antibody titers against H9N2 AIV, but the 4/91 showed the most significant (P ≤ 0.05) increase compared to the other experimental groups.
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Affiliation(s)
- Reza Amanollahi
- Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
| | - Keramat Asasi
- Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Bahman Abdi-Hachesoo
- Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
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Tavassoli A, Soleymani S, Haghparast A, Hashemi Tabar G, Bassami MR, Dehghani H. Reverse Genetics Assembly of Newcastle Disease Virus Genome Template Using Asis-Sal-Pac BioBrick Strategy. Biol Proced Online 2020; 22:9. [PMID: 32377174 PMCID: PMC7193399 DOI: 10.1186/s12575-020-00119-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 03/18/2020] [Indexed: 11/25/2022] Open
Abstract
Background The BioBrick construction as an approach in synthetic biology provides the ability to assemble various gene fragments. To date, different BioBrick strategies have been exploited for assembly and cloning of a variety of gene fragments. We present a new BioBrick strategy, here referred as Asis-Sal-Pac BioBrick, which we used for the assembly of NDV as a candidate for single-stranded non-segmented, negative-sense RNA genome viruses. Results In the present study, we isolated three NDVs from clinical samples which were classified into the VIId genotype based on their pathogenicity and phylogenetic analyses. Then, SalI, AsisI, and PacI enzymes were used to design and develop a novel BioBrick strategy, which enabled us to assemble the NDV genome, adopting the “rule of six”. In this method, in each assembly step, the restriction sites in the newly formed destination plasmid are reproduced, which will be used for the next insertion. In this study using two overlapping PCRs, the cleavage site of the F gene was also modified from 112RRQKRF117to 112GRQGRL117 in order to generate the attenuated recombinant NDV. Finally, in order to construct the recombinant NDV viruses, the plasmids harboring the assembled full-length genome of the NDV and the helper plasmids were co-transfected into T7-BHK cells. The rescue of the recombinant NDVwas confirmed by RT-PCR and HA tests. Conclusions These findings suggest that the combination of reverse genetic technology and BioBrick assembly have the potential to be applied for the development of novel vaccine candidates. This promising strategy provides an effective and reliable approach to make genotype-matched vaccines against specific NDV strains or any other virus.
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Affiliation(s)
- Amin Tavassoli
- 1Division of Biotechnology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran
| | - Safoura Soleymani
- 1Division of Biotechnology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran
| | - Alireza Haghparast
- 1Division of Biotechnology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran.,2Immunology Section, Department of Pathobiology , Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Gholamreza Hashemi Tabar
- 1Division of Biotechnology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran
| | - Mohammad Reza Bassami
- 1Division of Biotechnology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran
| | - Hesam Dehghani
- 1Division of Biotechnology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran.,3Department of Basic Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran.,4Stem Cell Biology and Regenerative Medicine Research Group, Research Institute of Biotechnology, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran
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Hassanzadeh M, Abdoshah M, Yousefi AR, Masoudi S. Comparison of the Impact of Different Administration Routes on the Efficacy of a Thermoresistant Newcastle Disease Vaccine in Chickens. Viral Immunol 2020; 33:361-366. [PMID: 31976824 DOI: 10.1089/vim.2019.0125] [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] [Indexed: 11/12/2022] Open
Abstract
Route of vaccine administration has a great impact on immunization and protection outcomes in chickens. This study was conducted to compare the effect of different administration routes on the efficacy of a thermoresistant Newcastle disease (ND) vaccine (ND.TR.IR) in chickens. A total of 100 one-day-old specific pathogen-free chicks were divided into five groups (n = 20 chicks per group) and vaccinated through different routes at 10 and 20 days of age. Treatments included no vaccination (control [C]), 1 dose inoculation through eye drop (ED), 1 dose inoculation through drinking water (DW), 1 dose inoculation through feed (FV1), and 10 doses inoculation through feed (FV10). At 20 and 34 days of age, antibody titers were measured against ND virus (NDV) in all the chickens by hemagglutination inhibition (HI) test. Chicks immunized with ND.TR.IR vaccine through different routes of administration also were intramuscularly challenged with a local virulent NDV (vNDV) (Ck/ir/Beh/2011) 14 days after booster vaccination (at 34 days of age). Our results showed that in comparison with the FVs groups, the immunized chicks through ED induced a higher HI antibody titers at 20 days of age (p < 0.05). Meanwhile, vaccination through ED induced higher HI antibody titers at day 34 of age compared with all other groups (p > 0.05). The percentages of the protective HI antibody titers (≥log23) detected in ED and DW groups at 20 days of age were higher than those detected in the FV1 group (p < 0.05). However, routes of vaccination had no significant effect on the rate of protective titers at day 34 of age (100%, 90%, 75%, and 85% for ED, DW, FV1, and FV10, respectively). The percentage of post-NDV challenge survived chickens was not affected by the route of vaccination (p > 0.05), but immunization of chicks with ND.TR.IR in FV1 group provided relatively poorer protection when compared with the other groups (90% vs. 100%, respectively). Altogether, immunization of chicks with ND.TR.IR vaccine through different routes of administration induced protective NDV antibody HI titers, and provided protection against vNDV. However, when the vaccine was administrated through feed, a higher dose of vaccine is recommended.
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Affiliation(s)
- Mohammad Hassanzadeh
- Department of Poultry Diseases, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Mohammad Abdoshah
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Ali Reza Yousefi
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Shahin Masoudi
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
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Xu X, Li J, Ding J, Yang M, Xue C, Wang J, Cong Y, Yin R, Qian J, Jin N, Ding Z. Evaluation of the safety and protection efficacy of an attenuated genotype vii newcastle disease virus strain as a candidate vaccine. Microb Pathog 2019; 139:103831. [PMID: 31682996 DOI: 10.1016/j.micpath.2019.103831] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 10/30/2019] [Accepted: 10/30/2019] [Indexed: 11/16/2022]
Abstract
Newcastle disease (ND) is a serious avian infectious disease, causing severe economic loss worldwide. Its prevention depends on comprehensive vaccination scheme against Newcastle disease virus (NDV). However, current vaccine strains are of different genotypes with prevalent circulating strains (genotype VII), with significant genetic distance. Our team previously generated a genotype matched attenuated NDV strain (rmNA-1). In this study, its safety and immunization efficacy were evaluated. Its lentogenic characteristic was stable for 25 generations in embryonated chicken eggs and for six generations in SPF chickens. Overdosed administration did not cause any clinical signs or pathogenic changes in chickens. As to its immunization effect, rmNA-1 stimulated a comparable serum NDV specific antibody level to a LaSota (genotype II) strain based commercial vaccine, and provided full protection against virulent genotype VII strain challenge, with significantly reduced virus shedding period.
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Affiliation(s)
- Xiaohong Xu
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China; College of Basic Medical Science, Jilin University, Changchun, 130021, China
| | - Jindou Li
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China
| | - Jiaxin Ding
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China
| | - Mingxi Yang
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China
| | - Cong Xue
- College of Agriculture and Forestry Science, Linyi University, Linyi, 276000, China
| | - Jianzhong Wang
- Engineering Research Center of Jilin Province for Animals Probiotics, College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Yanlong Cong
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China
| | - Renfu Yin
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China
| | - Jing Qian
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences / Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture, Nanjing, 210014, China
| | - Ningyi Jin
- College of Basic Medical Science, Jilin University, Changchun, 130021, China
| | - Zhuang Ding
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China.
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Xu X, Ding Z, Yuan Q, Ding J, Li J, Wang W, Cong Y, Ouyang W, Wang Y, Qian J, Yin R. A genotype VII Newcastle disease virus-like particles confer full protection with reduced virus load and decreased virus shedding. Vaccine 2018; 37:444-451. [PMID: 30545716 DOI: 10.1016/j.vaccine.2018.11.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/17/2018] [Accepted: 11/25/2018] [Indexed: 11/24/2022]
Abstract
Newcastle disease (ND) is one of the most severe avian infectious disease inflicting a great loss on poultry industry worldwide. The control of ND relies on proper vaccination strategies. The vaccine strains of Newcastle disease virus (NDV) mainly belong to genotype I, II or III, which cannot fully prohibit virus shedding against the prevalent genotype VII virulent strain attack. To develop a safe, genotype matched vaccine candidate, we employed a bac-to-bac expression system and constructed a genotype VII NDV strain based virus-like particles (NDV VLPs). It was constructed with NDV M protein as the skeleton, and protective antigen F and HN proteins displayed on the surface. The NDV VLPs exhibited a similar appearance to the live NDV particles, but with denser F and HN proteins displayed on the surface. The immunization assay indicated that NDV VLPs stimulated a longer protection period, less tissue virus loading and shorter virus shedding period than the commercialized LaSota-formulated vaccine when challenged with genotype VII NDV strain. These results proposed the potential role of NDV VLPs as an alternative to current live genotype unmatched vaccine for the control and eliminate NDV in the avian flocks.
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Affiliation(s)
- Xiaohong Xu
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun 130062, China
| | - Zhuang Ding
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun 130062, China
| | - Qianliang Yuan
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun 130062, China
| | - Jiaxin Ding
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun 130062, China
| | - Jindou Li
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun 130062, China
| | - Weiqi Wang
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun 130062, China
| | - Yanlong Cong
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun 130062, China
| | - Wei Ouyang
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences/Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture, Nanjing 210014, China
| | - Yongshan Wang
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences/Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture, Nanjing 210014, China
| | - Jing Qian
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun 130062, China; Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences/Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture, Nanjing 210014, China
| | - Renfu Yin
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun 130062, China.
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18
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Genotype Diversity of Newcastle Disease Virus in Nigeria: Disease Control Challenges and Future Outlook. Adv Virol 2018; 2018:6097291. [PMID: 30631359 PMCID: PMC6304561 DOI: 10.1155/2018/6097291] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 08/28/2018] [Indexed: 11/17/2022] Open
Abstract
Newcastle disease (ND) is one of the most important avian diseases with considerable threat to the productivity of poultry all over the world. The disease is associated with severe respiratory, gastrointestinal, and neurological lesions in chicken leading to high mortality and several other production related losses. The aetiology of the disease is an avian paramyxovirus type-1 or Newcastle disease virus (NDV), whose isolates are serologically grouped into a single serotype but genetically classified into a total of 19 genotypes, owing to the continuous emergence and evolution of the virus. In Nigeria, molecular characterization of NDV is generally very scanty and majorly focuses on the amplification of the partial F gene for genotype assignment. However, with the introduction of the most objective NDV genotyping criteria which utilize complete fusion protein coding sequences in phylogenetic taxonomy, the enormous genetic diversity of the virus in Nigeria became very conspicuous. In this review, we examine the current ecological distribution of various NDV genotypes in Nigeria based on the available complete fusion protein nucleotide sequences (1662 bp) in the NCBI database. We then discuss the challenges of ND control as a result of the wide genetic distance between the currently circulating NDV isolates and the commonest vaccines used to combat the disease in the country. Finally, we suggest future directions in the war against the economically devastating ND in Nigeria.
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Gowthaman V, Ganesan V, Gopala Krishna Murthy TR, Nair S, Yegavinti N, Saraswathy PV, Suresh Kumar G, Udhayavel S, Senthilvel K, Subbiah M. Molecular phylogenetics of Newcastle disease viruses isolated from vaccinated flocks during outbreaks in Southern India reveals circulation of a novel sub‐genotype. Transbound Emerg Dis 2018; 66:363-372. [DOI: 10.1111/tbed.13030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 08/29/2018] [Accepted: 09/24/2018] [Indexed: 01/03/2023]
Affiliation(s)
- Vasudevan Gowthaman
- Poultry Disease Diagnosis and Surveillance Laboratory Veterinary College and Research Institute Campus Tamil Nadu Veterinary and Animal Sciences University Namakkal India
| | | | | | - Sowmya Nair
- National Institute of Animal Biotechnology Hyderabad India
| | | | | | - Ganesan Suresh Kumar
- Poultry Disease Diagnosis and Surveillance Laboratory Veterinary College and Research Institute Campus Tamil Nadu Veterinary and Animal Sciences University Namakkal India
| | - Shanmugasunderam Udhayavel
- Poultry Disease Diagnosis and Surveillance Laboratory Veterinary College and Research Institute Campus Tamil Nadu Veterinary and Animal Sciences University Namakkal India
| | - Kandasamy Senthilvel
- Poultry Disease Diagnosis and Surveillance Laboratory Veterinary College and Research Institute Campus Tamil Nadu Veterinary and Animal Sciences University Namakkal India
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20
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Fazel P, Mehrabanpour MJ. Evaluation of the Viral Interference between Lentogenic Newcastle Disease Virus (Lasota) and Avian Influenza Virus (H9N2) using Real-Time Reverse Transcription Polymerase Chain Reaction in SPF Chicken. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2018. [DOI: 10.1590/1806-9061-2017-0717] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- P Fazel
- Islamic Azad University, Iran; Islamic Azad University, Iran
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21
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Ghalyanchilangeroudi A, Hosseini H, Jabbarifakhr M, Fallah Mehrabadi MH, Najafi H, Ghafouri SA, Mousavi FS, Ziafati Z, Modiri A. Emergence of a virulent genotype VIIi of Newcastle disease virus in Iran. Avian Pathol 2018; 47:509-519. [PMID: 29954188 DOI: 10.1080/03079457.2018.1495313] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Newcastle disease (ND) is a contagious viral disease affecting numerous avian species, particularly domestic poultry, and causes devastating outbreaks. In spite of its endemicity and importance in Iran, data on the genetic characterization of ND virus (NDV) are scarce. An alarming issue that has just been raised is the occurrence of ND outbreaks with unexpected high mortality and severe clinical signs. The present study was conducted to characterize the emerging NDV genetically. An NDV strain, isolated in 2017 from commercial broilers showing severe nervous and enteric signs, was completely sequenced and found to be 15,192 nucleotides in length. The phylogenetic analysis demonstrated that the virus belonged to subgenotype VIIi, a subgenotype with potential panzootic features which has recently emerged in the Middle East and Asia. The supporting genetic pattern obtained from the complete genome, fusion and haemagglutinin gene analysis showed close relationship of the isolate with Pakistani VIIi NDVs. The analysis of the F protein showed a polybasic amino acid motif and a phenylalanine at position 117 at the cleavage site, which is a characteristic of virulent strains. The isolate showed significant differences from the previously characterized NDV strains from commercial and rural chickens in Iran. This may describe the importance of the illegal trade of pet birds from neighbouring countries leading to the emergence of new genotypes. This study introduces a newly emerging NDV VIIi subgenotype in Iran. This investigation emphasizes the necessity of effective control strategies.
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Affiliation(s)
- Arash Ghalyanchilangeroudi
- a Department of Microbiology and Immunology, Faculty of Veterinary Medicine , University of Tehran , Tehran , Iran
| | - Hossein Hosseini
- b Department of Clinical Sciences, Faculty of Veterinary Medicine , Karaj Branch, Islamic Azad University , Alborz , Iran
| | - Masoumeh Jabbarifakhr
- a Department of Microbiology and Immunology, Faculty of Veterinary Medicine , University of Tehran , Tehran , Iran
| | | | - Hamideh Najafi
- d Department of Pathobiology, School of Veterinary Medicine , Shiraz University , Shiraz , Iran
| | | | - Fatemeh Sadat Mousavi
- a Department of Microbiology and Immunology, Faculty of Veterinary Medicine , University of Tehran , Tehran , Iran
| | - Zahra Ziafati
- a Department of Microbiology and Immunology, Faculty of Veterinary Medicine , University of Tehran , Tehran , Iran
| | - Amir Modiri
- a Department of Microbiology and Immunology, Faculty of Veterinary Medicine , University of Tehran , Tehran , Iran
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Sabouri F, Vasfi Marandi M, Bashashati M. Characterization of a novel VIIl sub-genotype of Newcastle disease virus circulating in Iran. Avian Pathol 2017; 47:90-99. [DOI: 10.1080/03079457.2017.1376735] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Fereshteh Sabouri
- Department of Poultry Diseases, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Mehdi Vasfi Marandi
- Department of Poultry Diseases, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Mohsen Bashashati
- Department of Avian Disease Research and Diagnostic, Razi Vaccine and Serum Research Institute, Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran
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Mayahi V, Esmaelizad M. Molecular evolution and epidemiological links study of Newcastle disease virus isolates from 1995 to 2016 in Iran. Arch Virol 2017; 162:3727-3743. [PMID: 28864876 DOI: 10.1007/s00705-017-3536-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 08/01/2017] [Indexed: 11/21/2022]
Abstract
In the case of Newcastle disease virus, multiple factors such as host adaptation, immune response evasion, and selective pressures have been suggested to result in evolution of viruses and the emergence of genetic variants. Multiple studies on virus classification and global epidemiological links have yielded consistent data. Here, we have performed a molecular analysis study of circulating Newcastle disease viruses in Iran (1995-2016). According to evolutionary divergences, subgenotype VIg, VIj, VIIj, VIId, XIIIa and XIIId isolates have been circulating in the country during a 21-year period. Based on data analysis, VIg isolates shared highest sequence identity with Russian and Polish isolates of the VIg subgenotype, while VIj subgenotype isolates (2012) were most similar to a virus isolated in 2015 in India. Analysis of the evolutionary divergence of subgenotype VIIj suggests that Chinese and Ukrainian viruses may have played a crucial role in the emergence of VIIj isolates. Evolutionary difference studies also indicated that XIIIa isolates circulating in Iran may have caused the emergence of adapted variants of subgenotype XIIId. Therefore, we propose that the evolutionary and epidemiological study of virulent Newcastle disease viruses could help to provide accurate molecular data about variants circulating in the region, thus aiding in the design of more efficient recombinant vaccines.
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Affiliation(s)
- Vafa Mayahi
- Central Laboratory Department, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Alborz, Iran
| | - Majid Esmaelizad
- Central Laboratory Department, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Alborz, Iran.
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Emerging variant of genotype XIII Newcastle disease virus from Northeast India. Acta Trop 2017; 172:64-69. [PMID: 28450210 DOI: 10.1016/j.actatropica.2017.04.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 04/18/2017] [Accepted: 04/21/2017] [Indexed: 01/12/2023]
Abstract
Northeast India with its rich and diverse avifauna acts as a hotbed for emerging virulent Newcastle disease virus (NDV) strains. The present work describes the molecular and pathogenic characterization of NDV strain isolated from Pandu, Assam, India. Clinicopathological and genetic analysis showed the virulent nature of NDV strain Pandu. On molecular phylogenetic and evolutionary distance analysis, the NDV strain Pandu formed a distinct clade within the genotype XIII of class II NDV, suggesting a new sub-genotype XIIIc. The accumulation of mutations in the NDV strain Pandu makes it divergent enough to be considered as a new sub-genotype. The proposed NDV sub-genotype XIIIc consists of strains recently reported from eastern and northeastern India.
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Fan W, Wang Y, Wang S, Cheng Z, Guo H, Zhao X, Liu J. Virulence in Newcastle disease virus: A genotyping and molecular evolution spectrum perspective. Res Vet Sci 2017; 111:49-54. [DOI: 10.1016/j.rvsc.2016.12.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 11/07/2016] [Accepted: 12/05/2016] [Indexed: 11/26/2022]
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Zhao J, Yang H, Xu H, Ma Z, Zhang G. Efficacy of an inactivated bivalent vaccine against the prevalent strains of Newcastle disease and H9N2 avian influenza. Virol J 2017; 14:56. [PMID: 28302119 PMCID: PMC5356287 DOI: 10.1186/s12985-017-0723-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 03/07/2017] [Indexed: 11/22/2022] Open
Abstract
Background Newcastle disease (ND) and avian influenza subtype H9N2 (H9N2 AI) are two of the most important diseases of poultry, causing severe economic losses in the global poultry industry. Vaccination is an effective way to prevent and control the spread of ND virus (NDV) and H9N2 AI virus (AIV), but the antigenic differences between the current circulating strains and the vaccine strains might account for recent ND and H9N2 AI outbreaks in vaccinated poultry flocks. Methods We developed an inactivated bivalent H9N2 and NDV vaccine based on the current prevalent strains of H9N2 AIV and NDV in China and evaluated its efficacy in chickens in this study. Results The results indicated that the inactivated bivalent vaccine could induce a fast antibody response in vaccinated chickens. The hemagglutination inhibition (HI) titer in the sera increased rapidly, and the highest HI titer was observed at 4 weeks post-vaccination (wpv) with a mean titre of 8.6 log2 for NDV and 9.5 log2 for H9N2. Up until 15 wpv, HI titers were still detectable at a high level of over 6 log2. The immunized chickens showed no signs of disease after challenge at 3 wpv with the prevalent strains of NDV and H9N2 AIV isolated in 2012–2014. Moreover, viral shedding was completely inhibited in vaccinated chickens after challenge with H9N2 AIV and inhibited by at least 90% with NDV compared to the controls at 5dpc. Conclusions Our findings suggest that the inactivated NDV and H9N2 vaccine induces a fast and strong antibody response in vaccinated chickens and is efficacious in poultry against NDVs and H9N2 AIVs.
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Affiliation(s)
- Jing Zhao
- Key Laboratory of Animal Epidemiology and Zoonoses;, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China
| | - Huiming Yang
- Key Laboratory of Animal Epidemiology and Zoonoses;, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China
| | - Hongjun Xu
- Chengdu Tecbond Biological Products Co., Ltd, Sichuan, 610100, People's Republic of China
| | - Zengbin Ma
- Key Laboratory of Animal Epidemiology and Zoonoses;, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China
| | - Guozhong Zhang
- Key Laboratory of Animal Epidemiology and Zoonoses;, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China.
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Das M, Kumar S. Evidence of independent evolution of genotype XIII Newcastle disease viruses in India. Arch Virol 2016; 162:997-1007. [PMID: 28035479 DOI: 10.1007/s00705-016-3182-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 11/22/2016] [Indexed: 12/19/2022]
Abstract
Despite the prevalence of Newcastle disease virus (NDV) outbreaks in India through the decades, there has been little genetic characterisation of the virulent strains circulating in Northeast India. In 2014, a poultry farm in the Kamrup district of Assam reported an ND outbreak. In this study, genetic analysis and clinicopathological tests showed the virulent nature of the isolate Kamrup. Based on prudent classification criteria, the virulent strain Kamrup was found to be most closely related to members of genotype XIII of class II NDV. A phylogenetic analysis of NDV strains suggested three sub-genotypes: XIIIa, XIIIb and XIIIc. NDV strain Kamrup belonged to sub-genotype XIIIc. Sub-genotype XIIIc isolates were similar to the 1982 isolate from cockatoo and appeared to have evolved parallel to the preceding genotype XIII viruses circulating in India. The high genetic diversity and frequency of mutations observed in the envelope glycoproteins of strain Kamrup demonstrate the evolution of the pandemic genotype XIII NDV in India, which further undermines and complicates of NDV management in India.
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Affiliation(s)
- Moushumee Das
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Sachin Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India.
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Li R, Guo K, Liu C, Wang J, Tan D, Han X, Tang C, Zhang Y, Wang J. Strong inflammatory responses and apoptosis in the oviducts of egg-laying hens caused by genotype VIId Newcastle disease virus. BMC Vet Res 2016; 12:255. [PMID: 27846843 PMCID: PMC5111258 DOI: 10.1186/s12917-016-0886-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 11/11/2016] [Indexed: 11/13/2022] Open
Abstract
Background Newcastle disease virus (NDV) can cause serious damage to the reproductive tracts of egg-laying hens and leads to egg production and quality reduction. However, the mechanism of severe pathological damage in the oviducts of egg-laying hens after NDV infection has not been fully elucidated. In this study, the correlation between the primary pathological lesions and viral load in the oviducts of egg-laying hens infected with the velogenic genotype VIId NDV strain was evaluated by pathological observation and virus detection. Subsequently, apoptosis, the expression of immune-related genes and lymphocyte infiltration into the infected oviducts were determined to explore the potential causes of the pathological changes. Results A higher viral load and severe tissue lesions and apoptotic bodies were observed in the oviduct of NDV-infected hens compared with the control. Immune-related genes, including TLR3/7/21, MDA5, IL-2/6/1β, IFN-β, CXCLi1/2, and CCR5, were significantly upregulated in the magnum and uterus. IL-2 presented the highest mRNA level change (137-fold) at 5 days post infection (dpi) in the magnum. Infection led to CD3+CD4+ and CD3+CD8α+ lymphocyte infiltration into the magnum of the oviduct. A higher viral load was found to be associated with pathological changes and the elevated expression of proinflammatory cytokines in the NDV-infected hens. Conclusions Our results indicate that the severe lesions and apoptosis in the oviducts of egg-laying hens caused by genotype VIId NDV strains are associated with the excessive release of inflammatory cytokines, chemokines and lymphocyte infiltration, which contribute to the dysfunction of the oviducts and the decrease of egg production in hens.
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Affiliation(s)
- Ruiqiao Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China
| | - Kangkang Guo
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China
| | - Caihong Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China
| | - Jing Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China
| | - Dan Tan
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China
| | - Xueying Han
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China
| | - Chao Tang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China
| | - Yanming Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China
| | - Jingyu Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China.
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Rezaei Far A, Peighambari SM, Pourbakhsh SA, Ashtari A, Soltani M. Co-circulation of genetically distinct groups of avian paramyxovirus type 1 in pigeon Newcastle disease in Iran. Avian Pathol 2016; 46:36-43. [PMID: 27314285 DOI: 10.1080/03079457.2016.1203068] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Pigeons are considered as one of the major natural reservoirs in the epidemiology of Newcastle disease (ND). In this study, the partial sequence of fusion protein gene of 17 pigeon-origin ND viruses (NDVs) isolated during 2012-2013 in Iran was analysed. Since the studied isolates showed F0 protein cleavage sites compatible with velogenic NDVs, all were considered as virulent NDVs. Two isolates carried 112RRQKRF117 as the cleavage site motif, whereas the rest demonstrated 112KRQKRF117 motif which just recently has been reported among Iranian virulent NDVs. Phylogenetic analysis divided all these diverse isolates in two distinct clusters within class II genotype VI. Based on the partial fusion protein gene sequence, 15 out of 17 isolates showed the highest genetic identity to subgenotype VIb/2 and the other two isolates were placed in a distinct genetic group of genotype VI. Based on recent findings, at least two different sublineages of genotype VI are causing the ND outbreaks in the pigeon population and are circulating simultaneously along with virulent NDVs of genotype VII in various species in Iran. The continuing circulation of a diverse group of virulent NDVs as an enzootic in widespread species such as pigeon can cause outbreaks in commercial poultry flocks and also failure in controlling programmes. Therefore, the constant monitoring and awareness of the virus characteristics should be considered in controlling programmes against ND in Iran.
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Affiliation(s)
- A Rezaei Far
- a Department of Avian Diseases, Faculty of Veterinary Medicine , University of Tehran , Tehran , Iran
| | - S M Peighambari
- a Department of Avian Diseases, Faculty of Veterinary Medicine , University of Tehran , Tehran , Iran
| | - S A Pourbakhsh
- b Avian Diseases Research and Diagnosis Department , Razi Vaccine and Serum Research Institute , Alborz , Iran
| | - A Ashtari
- b Avian Diseases Research and Diagnosis Department , Razi Vaccine and Serum Research Institute , Alborz , Iran
| | - M Soltani
- a Department of Avian Diseases, Faculty of Veterinary Medicine , University of Tehran , Tehran , Iran
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Morla S, Shah M, Kaore M, Kurkure NV, Kumar S. Molecular characterization of genotype XIIIb Newcastle disease virus from central India during 2006–2012: Evidence of its panzootic potential. Microb Pathog 2016; 99:83-86. [DOI: 10.1016/j.micpath.2016.08.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 07/29/2016] [Accepted: 08/02/2016] [Indexed: 11/28/2022]
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Ahmadi E, Pourbakhsh SA, Ahmadi M, Mardani K, Talebi A. Phylogenetic characterization of virulent Newcastle disease viruses isolated during outbreaks in northwestern Iran in 2010. Arch Virol 2016; 161:3151-60. [PMID: 27542379 DOI: 10.1007/s00705-016-3021-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 08/17/2016] [Indexed: 10/21/2022]
Abstract
The northwest of Iran shares long borders with three neighboring countries; therefore, it is considered one of the main entry portals of Newcastle disease virus (NDV) into the country. Ten virulent NDVs were recovered from 19 poultry farms of various prefectures in northwestern Iran during Newcastle disease outbreaks in 2010. The isolates were genotypically analyzed using an F-gene-specific reverse transcription polymerase chain reaction (RT-PCR) assay. The amplified F gene (nucleotides 189-1666) sequences of the NDV isolates were compared phylogenetically with those of previously published strains in GenBank. All of the NDV isolates belonged to genotype VIIb and were closely related to some isolates from Iran, Russia, and Sweden. Therefore, it can be postulated that these isolates evolved from previously reported strains. The velogenic viruses carried the motif (112)R-R-Q-K-R/F(117) at the F0 cleavage site and a unique substitution of (190)L→F which had never been reported in any NDV genotype VIIb isolate. They shared high sequence similarity with each other but were distinct from current NDV vaccines and NDV strains reported from other countries. This information is fundamental for improving the efficacy of controlling strategies and vaccine development for NDV.
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Affiliation(s)
- Elham Ahmadi
- Department of Veterinary Pathobiology, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran.
| | - Seyed Ali Pourbakhsh
- Department of Poultry Diseases, Razi Vaccine and Serum Research Institute, Karaj, Iran
| | - Malahat Ahmadi
- Department of Microbiology, Faculty of Veterinary Medicine, Urmia University, Urmia, West Azarbaijan, Iran
| | - Karim Mardani
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, Urmia, West Azarbaijan, Iran
| | - Alireza Talebi
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, West Azarbaijan, Iran
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Zhu J, Hu S, Xu H, Liu J, Zhao Z, Wang X, Liu X. Characterization of virulent Newcastle disease viruses from vaccinated chicken flocks in Eastern China. BMC Vet Res 2016; 12:113. [PMID: 27305943 PMCID: PMC4910237 DOI: 10.1186/s12917-016-0732-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 06/07/2016] [Indexed: 11/15/2022] Open
Abstract
Background Newcastle disease (ND) is one of the most contagious and devastating diseases to poultry in the world. The causative agents are virulent strains of Newcastle disease virus (NDV), which belong to the genus Avulavirus, sub-family Paramyxoviridae, family Paramyxovirinae. Knowing the genomic and antigenic characteristics of virulent NDVs might contribute to ND control in China. Results The results showed that all of the virulent strains belonged sub-genotype VIId shared the same cleavage site 112RRQKR/F117 in the fusion protein. At least 69 % (38 of 55) of the NDV strains possessed E347K variation in the hemagglutinin-neuraminidase protein. The cross-neutralization tests confirmed that the strains harboring 347 K showed lower antigenic relatedness with LaSota. Furthermore, the immune-challenge experiment indicated that LaSota could not provide complete protection against infection with the E347K variant NDVs as the vaccinated birds were still able to be infected and shed virulent challenge viruses. Conclusions Currently, sub-genotype VIId NDVs are the prevalent virulent strains circulating among vaccinated chicken flocks in Eastern China. Our findings indicated that the E347K variation in HN gene would expand the antigenic difference with LaSota, which may be responsible for the increasing isolation rate of these strains from vaccinated chickens.
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Affiliation(s)
- Jie Zhu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, 12 East Wenhui Road, Yangzhou, Jiangsu, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China.,Shandong Binzhou Wohua Biological Engineering Co., Ltd, Binzhou, 256600, China
| | - Shunlin Hu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, 12 East Wenhui Road, Yangzhou, Jiangsu, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China
| | - Haixu Xu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, 12 East Wenhui Road, Yangzhou, Jiangsu, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China
| | - Jingjing Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, 12 East Wenhui Road, Yangzhou, Jiangsu, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China
| | - Zhenzhen Zhao
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, 12 East Wenhui Road, Yangzhou, Jiangsu, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China
| | - Xiaoquan Wang
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, 12 East Wenhui Road, Yangzhou, Jiangsu, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China
| | - Xiufan Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, 12 East Wenhui Road, Yangzhou, Jiangsu, 225009, China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China.
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Temporal, geographic, and host distribution of avian paramyxovirus 1 (Newcastle disease virus). INFECTION GENETICS AND EVOLUTION 2016; 39:22-34. [PMID: 26792710 DOI: 10.1016/j.meegid.2016.01.008] [Citation(s) in RCA: 190] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 01/08/2016] [Accepted: 01/09/2016] [Indexed: 12/16/2022]
Abstract
Newcastle disease is caused by virulent forms of avian paramyxovirus of serotype 1 (APMV-1) and has global economic importance. The disease reached panzootic proportions within two decades after first being identified in 1926 in the United Kingdom and Indonesia and still remains endemic in many countries across the world. Here we review information on the host, temporal, and geographic distribution of APMV-1 genetic diversity based on the evolutionary systematics of the complete coding region of the fusion gene. Strains of APMV-1 are phylogenetically separated into two classes (class I and class II) and further classified into genotypes based on genetic differences. Class I viruses are genetically less diverse, generally present in wild waterfowl, and are of low virulence. Class II viruses are genetically and phenotypically more diverse, frequently isolated from poultry with occasional spillovers into wild birds, and exhibit a wider range of virulence. Waterfowl, cormorants, and pigeons are natural reservoirs of all APMV-1 pathotypes, except viscerotropic velogenic viruses for which natural reservoirs have not been identified. Genotypes I and II within class II include isolates of high and low virulence, the latter often being used as vaccines. Viruses of genotypes III and IX that emerged decades ago are now isolated rarely, but may be found in domestic and wild birds in China. Containing only virulent viruses and responsible for the majority of recent outbreaks in poultry and wild birds, viruses from genotypes V, VI, and VII, are highly mobile and have been isolated on different continents. Conversely, virulent viruses of genotypes XI (Madagascar), XIII (mainly Southwest Asia), XVI (North America) and XIV, XVII and XVIII (Africa) appear to have a more limited geographic distribution and have been isolated predominantly from poultry.
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Wang JY, Liu WH, Ren JJ, Tang P, Wu N, Wu HY, Ching CD, Liu HJ. Characterization of emerging Newcastle disease virus isolates in China. Virol J 2015; 12:119. [PMID: 26246133 PMCID: PMC4527216 DOI: 10.1186/s12985-015-0351-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 07/28/2015] [Indexed: 11/29/2022] Open
Abstract
Background Newcastle disease (ND) is a devastating worldwide disease of poultry characterized by increased respiration, circulatory disturbances, hemorrhagic enteritis, and nervous signs. Sequence analysis shows several amino acid residue substitutions at neutralizing epitopes on the F and HN proteins of recent Shaanxi strains. Both Cross protection and cross serum neutralization tests revealed that the traditional vaccine strains were unable to provide full protection for the flocks. Methods To better understand the epidemiology of Newcastle disease outbreak, a portion of the F gene and the full-length HN gene were amplified from Shaanxi isolates by reverse transcription-polymerase chain reaction (RT-PCR) and then conducted sequence and phylogenetic analyzes. In pathogenicity analysis, both high intra-cerebral pathogenicity index (ICPI) and mean death time (MDT) tests of chicken embryo were carried out. Furthermore, a cross-protection experiment in which specific-pathogen-free chickens vaccinated with a LaSota vaccine strain were challenged by the recent Shaanxi strain was also performed. Results Nine Newcastle disease (ND) virus (NDV) isolates which were recovered from ND outbreaks in chicken flocks in China were genotypically and pathotypically characterized. Amino acid sequence analysis revealed that all the recent Shaanxi-isolated NDVs have 112R-R-Q-K-R-F117 for the C-terminus of the F2 protein and exhibit high ICPI and MDT of chicken embryos, suggesting that they were all classified as velogenic type of NDVs. Phylogenetic analysis of these isolates showed that they belong to subgenotype VIId that have been implicated in the recent outbreaks in northwestern China. The percentage of amino acid sequence identity of F protein between recent Shaanxi stains and five vaccine strains was in the range of 81.9 %–88.1 %, while the percentage of amino acid sequence identity of HN protein between recent Shaanxi strains and vaccine strains was in the range of 87.4 %–91.2 %. Furthermore, a number of amino acid residue substitutions at neutralizing epitopes on the F and HN proteins of these isolates were observed, which may lead to the change of antibody recognition and neutralization capacity. A cross-protection experiment indicated that specific-pathogen-free chickens vaccinated with a LaSota vaccine strain was not capable of providing full protection for the flocks that were challenged by the recent Shaanxi strain. Conclusions Taken together, our findings reveal that recent Shannxi NDVstrains exhibit antigenic variations that could be responsible for recent outbreaks of NDVs in northwestern China.
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Affiliation(s)
- Jing-Yu Wang
- College of Veterinary Medicine, Northwest A & F University, Yangling, 712100, China.
| | - Wan-Hua Liu
- College of Veterinary Medicine, Northwest A & F University, Yangling, 712100, China.
| | - Juan-Juan Ren
- College of Veterinary Medicine, Northwest A & F University, Yangling, 712100, China.
| | - Pan Tang
- College of Veterinary Medicine, Northwest A & F University, Yangling, 712100, China.
| | - Ning Wu
- College of Veterinary Medicine, Northwest A & F University, Yangling, 712100, China.
| | - Hung-Yi Wu
- Department of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, 912, Taiwan.
| | - Ching-Dong Ching
- Department of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, 912, Taiwan.
| | - Hung-Jen Liu
- Institute of Molecular Biology, National Chung Hsing University, Taichung, 402, Taiwan. .,Agricultural Biotechnology Center, National Chung Hsing University, Taichung, 402, Taiwan. .,Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, 402, Taiwan.
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Hu Z, Hu J, Hu S, Song Q, Ding P, Zhu J, Liu X, Wang X, Liu X. High levels of virus replication and an intense inflammatory response contribute to the severe pathology in lymphoid tissues caused by Newcastle disease virus genotype VIId. Arch Virol 2014; 160:639-48. [PMID: 25504358 DOI: 10.1007/s00705-014-2301-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Accepted: 11/28/2014] [Indexed: 10/24/2022]
Abstract
Some strains of Newcastle disease virus (NDV) genotype VIId cause more-severe tissue damage in lymphoid organs compared to other virulent strains. In this study, we aim to define the mechanism of this distinct pathological manifestation of genotype VII viruses. Pathology, virus replication, and the innate immune response in lymphoid tissues of chickens infected with two genotype VIId NDV strains (JS5/05 and JS3/05), genotype IX NDV F48E8 and genotype IV NDV Herts/33, were compared. Histopathologic examination showed that JS5/05 and JS3/05 produced more-severe lesions in the spleen and thymus, but these four virulent strains caused comparable mild lesions in the bursa. In addition, JS3/05 and JS5/05 replicated at significantly higher levels in the lymphatic organs than F48E8 and Herts/33. A microarray assay performed on the spleens of chickens infected with JS5/05 or Herts/33 revealed that JS5/05 elicited a more potent inflammatory response by increasing the number and expression levels of activated genes. Moreover, cytokine gene expression profiling showed that JS5/05 and JS3/05 induced a stronger cytokine response in lymphoid tissues compared to F48E8 and Herts/33. Taken together, our results indicate that the severe pathology in immune organs caused by genotype VIId NDV strains is associated with high levels of virus replication and an intense inflammatory response.
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Affiliation(s)
- Zenglei Hu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China
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Jakhesara SJ, Prasad VVSP, Pal JK, Jhala MK, Prajapati KS, Joshi CG. Pathotypic and Sequence Characterization of Newcastle Disease Viruses from Vaccinated Chickens Reveals Circulation of Genotype II, IV and XIII and in India. Transbound Emerg Dis 2014; 63:523-39. [PMID: 25406096 DOI: 10.1111/tbed.12294] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Indexed: 02/05/2023]
Abstract
Newcastle disease virus (NDV) causes a highly contagious disease which continuously haunts the global poultry industry. The nature and molecular epidemiology of NDVs prevalent in recent outbreaks in India is poorly understood. This study aimed to characterize NDVs prevalent in vaccinated flocks in India using whole-genome sequencing and biological pathotyping. Twelve field isolates were collected from outbreaks which occurred in different parts of India and characterized as velogenic based on their intracerebral pathogenicity index (ICPI) and amino acid sequence at the F protein cleavage site. All 12 of the field isolates and five commonly used vaccine strains were selected for whole-genome sequencing using Ion Torrent PGM technology, yielding complete genome sequences for ten field isolates and all vaccine strains. The genome of all isolates was found to be 15 192 nt long with a high level of conservation across multiple genomic features with APMV-I viruses. Phylogenetic analysis and evolutionary distance calculations placed the isolates in genotypes II, IV and XIII. Revisiting other recently reported strains provided preliminary evidence of genotypes VI, VII and XVIII circulating in India. Comparison between the field and vaccine virus sequences revealed unique genomic and amino acid differences in important antigenic regions of the F and hemagglutinin-neuraminidase (HN) genes which can be targeted for site directed mutagenesis to evaluate the impact of these substitutions on virus pathogenicity. This study highlights the requirement to evaluate current vaccines through systematic protection assays to determine protection efficacy against field isolates.
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Affiliation(s)
- S J Jakhesara
- Department of Animal Biotechnology, College of Veterinary Science & Animal Husbandry, Anand Agricultural University, Anand, Gujarat, India
| | | | - J K Pal
- Hester Biosciences Limited, Mehsana, Gujarat, India
| | - M K Jhala
- Department of Veterinary Microbiology, College of Veterinary Science & Animal Husbandry, Anand Agricultural University, Anand, Gujarat, India
| | - K S Prajapati
- Department of Veterinary Pathology, College of Veterinary Science & Animal Husbandry, Anand Agricultural University, Anand, Gujarat, India
| | - C G Joshi
- Department of Animal Biotechnology, College of Veterinary Science & Animal Husbandry, Anand Agricultural University, Anand, Gujarat, India
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Hosseini H, Langeroudi AG, Torabi R. Molecular Characterization and Phylogenetic Study of Newcastle Disease Viruses Isolated in Iran, 2010–2012. Avian Dis 2014; 58:373-6. [DOI: 10.1637/10743-120713-reg.1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Abdel-Glil MY, Mor SK, Sharafeldin TA, Porter RE, Goyal SM. Detection and characterization of Newcastle disease virus in formalin-fixed, paraffin-embedded tissues from commercial broilers in Egypt. Avian Dis 2014; 58:118-23. [PMID: 24758123 DOI: 10.1637/10616-071813-reg.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Newcastle disease (ND) is highly contagious and causes severe economic losses to the poultry industry due to high morbidity and mortality. In this report, we describe the detection of Newcastle disease virus (NDV) in formalin-fixed tissues from an outbreak of ND on broiler farms in Egypt. The affected birds experienced respiratory and/or nervous signs and a 75% mortality rate. Tissue samples were collected and placed in 10% neutral buffered formalin followed by embedding in paraffin. RNA was extracted from 80-microm formalin-fixed paraffin-embedded tissue blocks and recovered in 60 microl of elution buffer. All samples were negative for influenza virus by real-time reverse-transcription (RT)-PCR but positive for NDV. These flocks were known to have been vaccinated with a live NDV vaccine (LaSota strain). The nucleic acid sequences of the virus detected in this study were similar to those of a velogenic virus at its cleavage site 111GRRQKR*F117 and clustered with class II genogroup VII lineage of NDV, with a nucleotide sequence identity of 94%-99%. Although extraction and amplification of NDV from paraffin-embedded tissues from experimentally infected birds has been reported previously, this study reports on the use of RT-PCR on formalin-fixed tissues from actual field samples.
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Zhang YY, Shao MY, Yu XH, Zhao J, Zhang GZ. Molecular characterization of chicken-derived genotype VIId Newcastle disease virus isolates in China during 2005-2012 reveals a new length in hemagglutinin-neuraminidase. INFECTION GENETICS AND EVOLUTION 2013; 21:359-66. [PMID: 24333370 DOI: 10.1016/j.meegid.2013.12.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 11/28/2013] [Accepted: 12/02/2013] [Indexed: 11/30/2022]
Abstract
Newcastle disease (ND) is one of the most important diseases of poultry, and causes severe economic losses in the global poultry industry. Although all Newcastle disease virus (NDV) isolates belong to a single serotype, significant genetic diversity has been described between different NDV isolates. Here, we report the molecular characterization of 23 virulent genotype VIId NDV isolates of class II circulating in China. Phylogenetic construction and analysis revealed the existence of distinctly genomic and amino acid differences that clearly distinguished these isolates from other typical NDV genotypes and vaccine strains. We also report a new 582-amino-acid hemagglutinin-neuraminidase in genotype VII NDV strains. This is believed to be the first study to investigate systematically the most predominant NDV strains, and provides more information on the genetic nature of genotype VIId NDV of class II circulating in China.
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Affiliation(s)
- Yuan-Yuan Zhang
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, People's Republic of China
| | - Meng-Yu Shao
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, People's Republic of China
| | - Xiao-Hui Yu
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, People's Republic of China
| | - Jing Zhao
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, People's Republic of China
| | - Guo-Zhong Zhang
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, People's Republic of China.
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Molecular characterization and phylogenetic study of velogenic Newcastle disease virus isolates in Iran. Virus Genes 2013; 48:290-5. [PMID: 24287924 DOI: 10.1007/s11262-013-1015-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2013] [Accepted: 11/13/2013] [Indexed: 10/26/2022]
Abstract
The pathogenicity and genetic characterizations of six Newcastle disease virus (NDV) isolates obtained from chicken farms in six different regions in Iran were carried out using conventional and molecular techniques. Based on the pathogenicity indices (MDT, ICPI, and IVPI), all of these isolates were found to be velogenic (highly virulent) strains. A sequence analysis of the full-length mRNA encoding the fusion glycoprotein precursor (F0) of the NDV's fusion proteins F1 and F2 in these six isolates showed the presence of point mutations in form of nucleic acid substitutions at positions 82((C→T)), 83((T→C)), 736((A→G)), and 1,633((G→A)). However, the nucleic acid residues at positions 330-347 of the precursor F0 gene, corresponding to the cleavage site of the F0 protein, were found to have remained conserved among the six NDV isolates. A phylogenetic comparison between the six Iranian isolates and the NDVs whose F0 gene sequences were previously deposited in GenBank Database showed that all of the newly characterized Iranian NDV isolates belonged to genotype VII.
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41
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Characterization of genotype IX Newcastle disease virus strains isolated from wild birds in the northern Qinling Mountains, China. Virus Genes 2013; 48:48-55. [DOI: 10.1007/s11262-013-0987-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 09/24/2013] [Indexed: 10/26/2022]
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42
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Molecular epidemiology of Newcastle disease viruses in Vietnam. Trop Anim Health Prod 2013; 46:271-7. [PMID: 24061688 DOI: 10.1007/s11250-013-0475-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2013] [Indexed: 10/26/2022]
Abstract
Newcastle disease virus (NDV) causes significant economic losses to the poultry industry in Southeast Asia. In the present study, 12 field isolates of NDV were recovered from dead village chickens in Vietnam between 2007 and 2012, and were characterized. All the field isolates were classified as velogenic. Based on the sequence analysis of the F variable region, two distinct genetic groups (Vietnam genetic groups G1 and G2) were recognized. Phylogenetic analysis revealed that all the 12 field isolates fell into the class II genotype VII cluster. Ten of the field isolates, classified as Vietnam genetic group G1, were closely related to VIIh viruses that had been isolated from Indonesia, Malaysia, and Cambodia since the mid-2000s, while the other two field isolates, of Vietnam genetic group G2, clustered with VIId viruses, which were predominantly circulating in China and Far East Asia. Our results indicate that genotype VII viruses, especially VIIh viruses, are predominantly responsible for the recent epizootic of the disease in Vietnam.
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Choi KS, Kye SJ, Kim JY, Damasco VR, Sorn S, Lee YJ, Choi JG, Kang HM, Kim KI, Song BM, Lee HS. Molecular epidemiological investigation of velogenic Newcastle disease viruses from village chickens in Cambodia. Virus Genes 2013; 47:244-9. [PMID: 23764918 DOI: 10.1007/s11262-013-0930-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Accepted: 05/31/2013] [Indexed: 11/28/2022]
Abstract
Three isolates of Newcastle disease virus (NDV) were isolated from tracheal samples of dead village chickens in two provinces (Phnom Penh and Kampong Cham) in Cambodia during 2011-2012. All of these Cambodian NDV isolates were categorized as velogenic pathotype, based on in vivo pathogenicity tests and F cleavage site motif sequence ((112)RRRKRF(117)). The phylogenetic analysis and the evolutionary distances based on the sequences of the F gene revealed that all the three field isolates of NDV from Cambodia form a distinct cluster (VIIh) together with three Indonesian strains and were assigned to the genotype VII within the class II. Further phylogenetic analysis based on the hyper-variable region of the F gene revealed that some of NDV strains from Malaysia since the mid-2000s were also classified into the VIIh virus. This indicates that the VIIh NDVs are spreading through Southeast Asia. The present investigation, therefore, emphasizes the importance of further surveillance of NDV in neighboring countries as well as throughout Southeast Asia to contain further spreading of these VIIh viruses.
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Affiliation(s)
- Kang-Seuk Choi
- Avian Diseases Division, Animal and Plant Quarantine Agency, MAFRA, 175 Anyang-ro, Anyang, Gyeonggi, 430-757, Republic of Korea,
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Choi KS, Kye SJ, Kim JY, Lee HS. Genetic and Antigenic Variation of Shedding Viruses from Vaccinated Chickens After Challenge with Virulent Newcastle Disease Virus. Avian Dis 2013; 57:303-6. [DOI: 10.1637/10379-092112-resnote.1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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45
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Complete genome sequence of a newly emerging newcastle disease virus isolated in china. GENOME ANNOUNCEMENTS 2013; 1:1/3/e00169-13. [PMID: 23661473 PMCID: PMC3650432 DOI: 10.1128/genomea.00169-13] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Goose/GD/2010 is a newly emerging Newcastle disease virus (NDV) isolated from a sick goose flock in southern China. Here, we report the complete genome sequence of this isolate, which belongs to NDV subgenotype VIIb. This is the first report about the complete genome information of an isolate of subgenotype VIIb in China.
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Complete genome sequence of a subgenotype VIId Newcastle disease virus circulating predominantly in chickens in China. J Virol 2013; 86:13849-50. [PMID: 23166254 DOI: 10.1128/jvi.02663-12] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
At least 11 genotypes of class II viruses have been identified since the discovery of Newcastle disease virus (NDV) in 1926. Here, we reported the complete genome sequence of a prevalent NDV variant from China, belonging to subgenotype VIId in class II. The similar viruses have been the predominant strains circulating in China for the past decade, which occupied over 80% of Chinese prevalent strains and were phylogenetically different from currently available vaccines.
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