1
|
Yang F, Yan S, Zhu L, Yao H, Dong D, Wu D, Wu N, Ye C, Wu H. A multiplex TaqMan real-time RT-PCR assay for the simultaneous detection of H4, H6, and H10 avian influenza viruses. Heliyon 2023; 9:e15647. [PMID: 37153423 PMCID: PMC10160747 DOI: 10.1016/j.heliyon.2023.e15647] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 04/10/2023] [Accepted: 04/17/2023] [Indexed: 05/09/2023] Open
Abstract
Avian influenza viruses (AIVs) have caused a large number of epidemics in domestic and wild birds, and even posed a health challenge to humans. Highly pathogenic AIVs have attracted the most public attention. However, low pathogenic AIVs, including H4, H6, and H10 subtype AIVs, have spread covertly in domestic poultry, without obvious clinical signs. The emergence of human infections with H6 and H10 AIVs and the evidence of seropositivity of H4 AIV in poultry-exposed individuals indicated that these AIVs sporadically infect humans and could cause a potential pandemic. Therefore, a rapid and sensitive diagnostic method to simultaneously detect Eurasian lineage H4, H6, and H10 subtype AIVs is urgently required. Four singleplex real-time RT-PCR (RRT-PCR) assays were established based on carefully designed primers and probes of the conserved regions of the matrix, H4, H6, and H10 genes and combined into a multiplex RRT-PCR method to simultaneously detect H4, H6, and H10 AIVs in one reaction. The detection limit of the multiplex RRT-PCR method was 1-10 copies per reaction when detecting standard plasmids, and showed no cross-reaction against other subtype AIVs and other common avian viruses. Additionally, this method was suitable to detect the AIVs in samples from different sources, the results of which showed high consistency with virus isolation and a commercial influenza detection kit. In summary, this rapid, convenient, and practical multiplex RRT-PCR method could be applied in laboratory testing and clinical screening to detect AIVs.
Collapse
Affiliation(s)
- Fan Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Sijing Yan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Linwei Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Hangping Yao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, 250117, China
| | - Dalu Dong
- Hangzhou Biotest Biotech Co., Ltd., 27 Tuyi Road, Cangqian Street, Yuhang District, Hangzhou, 311121, China
| | - Danna Wu
- Hangzhou Biotest Biotech Co., Ltd., 27 Tuyi Road, Cangqian Street, Yuhang District, Hangzhou, 311121, China
| | - Nanping Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, 250117, China
| | - Chunsheng Ye
- Hangzhou Biotest Biotech Co., Ltd., 27 Tuyi Road, Cangqian Street, Yuhang District, Hangzhou, 311121, China
- Corresponding author. Hangzhou Biotest Biotech Co., Ltd., 27 Tuyi Road, Cangqian Street, Yuhang District, Hangzhou 311121, Zhejiang, China.
| | - Haibo Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, 250117, China
- Corresponding author. State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China.
| |
Collapse
|
2
|
Liu K, Ding P, Pei Y, Gao R, Han W, Zheng H, Ji Z, Cai M, Gu J, Li X, Gu M, Hu J, Liu X, Hu S, Zhang P, Wang X, Wang X, Liu X. Emergence of a novel reassortant avian influenza virus (H10N3) in Eastern China with high pathogenicity and respiratory droplet transmissibility to mammals. SCIENCE CHINA-LIFE SCIENCES 2021; 65:1024-1035. [PMID: 34542812 DOI: 10.1007/s11427-020-1981-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 07/13/2021] [Indexed: 11/29/2022]
Abstract
Decades have passed since the first discovery of H10-subtype avian influenza virus (AIV) in chickens in 1949, and it has been detected in many species including mammals such as minks, pigs, seals and humans. Cases of human infections with H10N8 viruses identified in China in 2013 have raised widespread attention. Two novel reassortant H10N3 viruses were isolated from chickens in December 2019 in eastern China during routine surveillance for AIVs. The internal genes of these viruses were derived from genotype S (G57) H9N2 and were consistent with H5N6, H7N9 and H10N8, which cause fatal infections in humans. Their viral pathogenicity and transmissibility were further studied in different animal models. The two H10N3 isolates had low pathogenicity in chickens and were transmitted between chickens via direct contact. These viruses were highly pathogenic in mice and could be transmitted between guinea pigs via direct contact and respiratory droplets. More importantly, these viruses can bind to both human-type SAα-2,6-Gal receptors and avian-type SAα-2,3-Gal receptors. Asymptomatic shedding in chickens and good adaptability to mammals of these H10N3 isolates would make it easier to transmit to humans and pose a threat to public health.
Collapse
Affiliation(s)
- Kaituo Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Pingyun Ding
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Yuru Pei
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Ruyi Gao
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, China
| | - Wenwen Han
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Huafen Zheng
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Zhuxing Ji
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Miao Cai
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Jinyuan Gu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Xiuli Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Min Gu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, China
| | - Jiao Hu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, China
| | - Xiaowen Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, China
| | - Shunlin Hu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, China
| | - Pinghu Zhang
- Institute of Translational Medicine, Key Laboratory of Geriatric Disease Prevention and Control of Jiangsu Province, Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Xiaobo Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Xiaoquan Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China. .,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, China.
| | - Xiufan Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China. .,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, China.
| |
Collapse
|
3
|
Wu H, Yang F, Liu F, Peng X, Chen B, Cheng L, Lu X, Yao H, Wu N. Molecular characterization of H10 subtype avian influenza viruses isolated from poultry in Eastern China. Arch Virol 2018; 164:159-179. [PMID: 30302582 DOI: 10.1007/s00705-018-4019-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 07/25/2018] [Indexed: 02/06/2023]
Abstract
In recent years, avian-origin H10 influenza viruses have proved capable of infecting human beings, and they pose a potential public health threat. Seven H10 avian influenza viruses (AIVs), H10N3 (n = 2), H10N7 (n = 1), and H10N8 (n = 4), were isolated from chickens in Zhejiang Province, Eastern China, during surveillance of AIVs in live poultry markets in 2016 and 2017. Phylogenetic analysis indicated that Zhejiang H10 strains received gene segments from H10, H3, and H7 viruses from birds in East Asia. Animal inoculation tests showed that these isolates have low pathogenicity in mice and can replicate in this species. Our findings suggest these H10 AIVs have the ability to adapt to chicken or other poultry, and highlight the need of long-term surveillance.
Collapse
Affiliation(s)
- Haibo Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital School of Medicine, Zhejiang University, Hangzhou, China.
| | - Fan Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital School of Medicine, Zhejiang University, Hangzhou, China
| | - Fumin Liu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiuming Peng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital School of Medicine, Zhejiang University, Hangzhou, China
| | - Bin Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital School of Medicine, Zhejiang University, Hangzhou, China
| | - Linfang Cheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiangyun Lu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital School of Medicine, Zhejiang University, Hangzhou, China
| | - Hangping Yao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital School of Medicine, Zhejiang University, Hangzhou, China
| | - Nanping Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital School of Medicine, Zhejiang University, Hangzhou, China.
| |
Collapse
|
4
|
Development of a TaqMan MGB RT-PCR assay for the detection of type A and subtype H10 avian influenza viruses. Arch Virol 2018; 163:2497-2501. [PMID: 29796926 DOI: 10.1007/s00705-018-3889-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 05/18/2018] [Indexed: 12/11/2022]
Abstract
H10 subtype avian influenza viruses have caused several epidemics in poultry and mammals, and specific, rapid and sensitive methods for detection are urgently needed. Herein, TaqMan minor groove binder (MGB) probes and multiplex real-time RT-PCR primers were designed based on gene regions encoding conserved domains of the nucleoprotein and H10 hemagglutinin. The developed multiplex real-time RT-PCR assay displayed high specificity, repeatability, and a detection limit of 10 copies per reaction. This diagnostic method could prove valuable for the rapid detection of H10 subtype AIVs in China.
Collapse
|
5
|
Choi WS, Lloren KKS, Baek YH, Song MS. The significance of avian influenza virus mouse-adaptation and its application in characterizing the efficacy of new vaccines and therapeutic agents. Clin Exp Vaccine Res 2017; 6:83-94. [PMID: 28775972 PMCID: PMC5540968 DOI: 10.7774/cevr.2017.6.2.83] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/03/2017] [Accepted: 05/12/2017] [Indexed: 11/26/2022] Open
Abstract
Due to the increased frequency of interspecies transmission of avian influenza viruses, studies designed to identify the molecular determinants that could lead to an expansion of the host range have been increased. A variety of mouse-based mammalian-adaptation studies of avian influenza viruses have provided insight into the genetic alterations of various avian influenza subtypes that may contribute to the generation of a pandemic virus. To date, the studies have focused on avian influenza subtypes H5, H6, H7, H9, and H10 which have recently caused human infection. Although mice cannot fully reflect the course of human infection with avian influenza, these mouse studies can be a useful method for investigating potential mammalian adaptive markers against newly emerging avian influenza viruses. In addition, due to the lack of appropriate vaccines against the diverse emerging influenza viruses, the generation of mouse-adapted lethal variants could contribute to the development of effective vaccines or therapeutic agents. Within this review, we will summarize studies that have demonstrated adaptations of avian influenza viruses that result in an altered pathogenicity in mice which may suggest the potential application of mouse-lethal strains in the development of influenza vaccines and/or therapeutics in preclinical studies.
Collapse
Affiliation(s)
- Won-Suk Choi
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
| | - Khristine Kaith S Lloren
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
| | - Yun Hee Baek
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
| | - Min-Suk Song
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
| |
Collapse
|
6
|
Jia Y, Yang J, Wang Z, Du Y, Cui J, Wang L, Guo F, Yang M, Han S, Zhu Q. Genetic properties and pathogenicity of a novel reassortant H10N5 influenza virus from wild birds. Arch Virol 2017; 162:1349-1353. [PMID: 28116526 DOI: 10.1007/s00705-017-3234-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 12/21/2016] [Indexed: 11/30/2022]
Abstract
In this study, we analyzed the genome of a H10N5 influenza virus from wild birds. This virus was identified as a novel reassortant virus with internal genes from multiple subtypes and of distinct origins. After sequential passage in mice, mouse-adapted viruses bearing mutations PB2-E627K and HA-G218E were generated. These viruses caused dramatic body weight loss and death, and also replicated in mouse brain, suggesting that the pathogenicity of low pathogenic H10N5 in chickens can be enhanced after passage in mammals. Our data imply that H10N5 viruses might be a potential risk to human health therefore it is important to undertake continued surveillance and biosecurity evaluation of these viruses.
Collapse
Affiliation(s)
- Yane Jia
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, CAAS, 1 Xujiaping, Lanzhou, 730046, China
| | - Jiayun Yang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, CAAS, 1 Xujiaping, Lanzhou, 730046, China
| | - Zhengxiang Wang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, CAAS, 1 Xujiaping, Lanzhou, 730046, China
| | - Yingying Du
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, CAAS, 1 Xujiaping, Lanzhou, 730046, China
| | - Jie Cui
- Key Laboratory of Special Pathogens and Biosafety, Center for Emerging Infectious Diseases, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Liang Wang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, CAAS, 1 Xujiaping, Lanzhou, 730046, China
| | - Fengfeng Guo
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, CAAS, 1 Xujiaping, Lanzhou, 730046, China
| | - Maijuan Yang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, CAAS, 1 Xujiaping, Lanzhou, 730046, China
| | - Shufang Han
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, CAAS, 1 Xujiaping, Lanzhou, 730046, China
| | - Qiyun Zhu
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, CAAS, 1 Xujiaping, Lanzhou, 730046, China.
| |
Collapse
|
7
|
Wu H, Peng X, Peng X, Cheng L, Lu X, Jin C, Xie T, Yao H, Wu N. Genetic characterization of natural reassortant H4 subtype avian influenza viruses isolated from domestic ducks in Zhejiang province in China from 2013 to 2014. Virus Genes 2015; 51:347-55. [PMID: 26350888 DOI: 10.1007/s11262-015-1245-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Accepted: 09/01/2015] [Indexed: 11/25/2022]
Abstract
The H4 subtype of the influenza virus was first isolated in 1999 from pigs with pneumonia in Canada. H4 avian influenza viruses (AIVs) are able to cross the species barrier to infect humans. In order to better understand the genetic relationships between H4 AIV strains circulating in Eastern China and other AIV strains from Asia, a survey of domestic ducks in live poultry markets was undertaken in Zhejiang province from 2013 to 2014. In this study, 23 H4N2 (n = 14) and H4N6 (n = 9) strains were isolated from domestic ducks, and all eight gene segments of these strains were sequenced and compared to reference AIV strains available in GenBank. The isolated strains clustered primarily within the Eurasian lineage. No mutations associated with adaption to mammalian hosts or drug resistance was observed. The H4 reassortant strains were found to be of low pathogenicity in mice and able to replicate in the lung of the mice without prior adaptation. Continued surveillance is required, given the important role of domestic ducks in reassortment events leading to new AIVs.
Collapse
Affiliation(s)
- Haibo Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China.
| | - Xiuming Peng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Xiaorong Peng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Linfang Cheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Xiangyun Lu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Changzhong Jin
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Tiansheng Xie
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Hangping Yao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Nanping Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China.
| |
Collapse
|
8
|
Molecular characterization of a reassortant H11N9 subtype avian influenza virus isolated from a domestic duck in Eastern China. Arch Virol 2015. [PMID: 26212362 DOI: 10.1007/s00705-015-2528-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
During surveillance for avian influenza viruses (AIVs) in live-poultry markets in Eastern China in 2013, an H11N9 AIV was isolated from a domestic duck. Phylogenetic analysis showed that this strain received its genes from H11, H3, H10, and H7 AIVs of poultry in China. This strain was found to be minimally pathogenic in mice and was able to replicate in mice without prior adaptation. Considering that the reassorted H11N9 viruses were isolated from domestic ducks in this study, it is possible that these ducks play an important role in the generation of novel reassorted H11 AIVs.
Collapse
|
9
|
Wu H, Lu R, Wu X, Peng X, Xu L, Cheng L, Lu X, Jin C, Xie T, Yao H, Wu N. Novel reassortant H10N7 avian influenza viruses isolated from chickens in Eastern China. J Clin Virol 2015; 65:58-61. [PMID: 25766990 DOI: 10.1016/j.jcv.2015.02.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 01/23/2015] [Accepted: 02/07/2015] [Indexed: 11/18/2022]
Abstract
BACKGROUND Since 2004, the H10N7 subtype avian influenza virus (AIV) has caused sporadic human infections with variable clinical symptoms world-wide. However, there is limited information pertaining to the molecular characteristics of H10N7 AIVs in China. OBJECTIVE To more fully characterize the genetic relationships between three novel H10N7 strains isolated from chickens in Eastern China and the strains isolated from birds throughout Asia, and to determine the pathogenicity of the H10N7 isolates in vivo. STUDY DESIGN All eight gene segments from the Chinese H10N7 strains were sequenced and compared with AIV strains available in GenBank. The virulence of the three isolates was determined in chickens and mice. RESULTS Three H10N7 subtype avian influenza viruses were isolated from chickens in live poultry markets in Eastern China in 2014: (1) A/chicken/Zhejiang/2C66/2014(H10N7) (ZJ-2C66), (2) A/chicken/Zhejiang/2CP2/2014(H10N7) (ZJ-2CP2), and (3) A/chicken/Zhejiang/2CP8/2014(H10N7) (ZJ-2CP8). Phylogenetic analysis indicated that the viruses contained genetic material from H10, H2, H7, and H3 AIV strains that were circulating at the same time. The reassortant H10N7 viruses were found to be minimally pathogenic in chickens and moderately pathogenic in mice. The viruses were able to replicate in mice without prior adaptation. CONCLUSION These results suggest that H10N7 surveillance in poultry should be used as an early warning system for avian influenza outbreaks. The novel strains identified here may post a threat to human health in the future if they continue to circulate.
Collapse
Affiliation(s)
- Haibo Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 310003 Hangzhou, China.
| | - Rufeng Lu
- Department of Emergency, The First Affiliated Hospital of Zhejiang Chinese Medical University, 310006 Hangzhou, China
| | - Xiaoxin Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 310003 Hangzhou, China
| | - Xiaorong Peng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 310003 Hangzhou, China
| | - Lihua Xu
- Animal Husbandry and Veterinary Institute, Zhejiang Academy of Agricultural Science, 310021 Hangzhou, China
| | - Linfang Cheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 310003 Hangzhou, China
| | - Xiangyun Lu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 310003 Hangzhou, China
| | - Changzhong Jin
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 310003 Hangzhou, China
| | - Tiansheng Xie
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 310003 Hangzhou, China
| | - Hangping Yao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 310003 Hangzhou, China
| | - Nanping Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, 310003 Hangzhou, China.
| |
Collapse
|