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Lian H, Yi L, Qiu M, Li B, Sun L, Zeng H, Zeng B, Yang F, Yang H, Yang M, Xie C, Qu L, Lin H, Hu P, Xu S, Zeng H, Lu J. Genomic epidemiology of CVA10 in Guangdong, China, 2013-2021. Virol J 2024; 21:122. [PMID: 38816865 PMCID: PMC11140982 DOI: 10.1186/s12985-024-02389-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 05/14/2024] [Indexed: 06/01/2024] Open
Abstract
Hand, Foot and Mouth Disease (HFMD) is a highly contagious viral illness primarily affecting children globally. A significant epidemiological transition has been noted in mainland China, characterized by a substantial increase in HFMD cases caused by non-Enterovirus A71 (EV-A71) and non-Coxsackievirus A16 (CVA16) enteroviruses (EVs). Our study conducts a retrospective examination of 36,461 EV-positive specimens collected from Guangdong, China, from 2013 to 2021. Epidemiological trends suggest that, following 2013, Coxsackievirus A6 (CVA6) and Coxsackievirus A10 (CVA10) have emerged as the primary etiological agents for HFMD. In stark contrast, the incidence of EV-A71 has sharply declined, nearing extinction after 2018. Notably, cases of CVA10 infection were considerably younger, with a median age of 1.8 years, compared to 2.3 years for those with EV-A71 infections, possibly indicating accumulated EV-A71-specific herd immunity among young children. Through extensive genomic sequencing and analysis, we identified the N136D mutation in the 2 A protein, contributing to a predominant subcluster within genogroup C of CVA10 circulating in Guangdong since 2017. Additionally, a high frequency of recombination events was observed in genogroup F of CVA10, suggesting that the prevalence of this lineage might be underrecognized. The dynamic landscape of EV genotypes, along with their potential to cause outbreaks, underscores the need to broaden surveillance efforts to include a more diverse spectrum of EV genotypes. Moreover, given the shifting dominance of EV genotypes, it may be prudent to re-evaluate and optimize existing vaccination strategies, which are currently focused primarily target EV-A71.
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Affiliation(s)
- Huimin Lian
- School of Public Health, Southern Medical University, Guangzhou, China
- Guangdong Provincial Institution of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Lina Yi
- Guangdong Provincial Institution of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Ming Qiu
- Guangdong Provincial Institution of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Baisheng Li
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Limei Sun
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Huiling Zeng
- Guangdong Provincial Institution of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- School of Public Health, Guangdong Pharmaceutica University, Guangzhou, China
| | - Biao Zeng
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Fen Yang
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Haiyi Yang
- Guangdong Provincial Institution of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Mingda Yang
- Guangdong Provincial Institution of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- School of Public Health, Jinan University, Guangzhou, China
| | - Chunyan Xie
- Guangdong Provincial Institution of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- School of Public Health, Jinan University, Guangzhou, China
| | - Lin Qu
- Guangdong Provincial Institution of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Huifang Lin
- Guangdong Provincial Institution of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Pengwei Hu
- Shenzhen Nanshan Center for Disease Control and Prevention, Shenzhen, China
| | - Shaojian Xu
- Longhua District Center for Disease Control and Prevention, Shenzhen, China
| | - Hanri Zeng
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China.
| | - Jing Lu
- School of Public Health, Southern Medical University, Guangzhou, China.
- Guangdong Provincial Institution of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangdong Workstation for Emerging Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China.
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Ponomareva NV, Novikova NA. Neurotropic enteroviruses (Picornaviridae: Enterovirus): predominant types, basis of neurovirulence. Vopr Virusol 2023; 68:479-487. [PMID: 38156564 DOI: 10.36233/0507-4088-205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Indexed: 12/30/2023]
Abstract
Enteroviruses are one of the most common causative agents of infectious diseases of the central nervous system. They are characterized by genetic variability, the ability to infect a wide range of cells, including brain microglial cells and astrocytes, and persist in the central nervous system tissue, causing delayed and chronic diseases. The review presents data on the basis of neurovirulence of non-polio enteroviruses and the most common pathogens causing enteroviral neuroinfections.
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Affiliation(s)
- N V Ponomareva
- Academician I.N. Blokhina Nizhny Novgorod Scientific Research Institute of Epidemiology and Microbiology of the Rospotrebnadzor
| | - N A Novikova
- Academician I.N. Blokhina Nizhny Novgorod Scientific Research Institute of Epidemiology and Microbiology of the Rospotrebnadzor
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Li X, Liu Z, Yan X, Tian Y, Liu K, Zhao Y, Shao J, Hao P, Zhang C. VP2 residue N142 of coxsackievirus A10 is critical for the interaction with KREMEN1 receptor and neutralizing antibodies and the pathogenicity in mice. PLoS Pathog 2023; 19:e1011662. [PMID: 37788227 PMCID: PMC10547193 DOI: 10.1371/journal.ppat.1011662] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 09/05/2023] [Indexed: 10/05/2023] Open
Abstract
Coxsackievirus A10 (CVA10) has recently emerged as one of the major causative agents of hand, foot, and mouth disease. CVA10 may also cause a variety of complications. No approved vaccine or drug is currently available for CVA10. The residues of CVA10 critical for viral attachment, infectivity and in vivo pathogenicity have not been identified by experiment. Here, we report the identification of CVA10 residues important for binding to cellular receptor KREMEN1. We identified VP2 N142 as a key receptor-binding residue by screening of CVA10 mutants resistant to neutralization by soluble KREMEN1 protein. The receptor-binding residue N142 is exposed on the canyon rim but highly conserved in all naturally occurring CVA10 strains, which provides a counterexample to the canyon hypothesis. Residue N142 when mutated drastically reduced receptor-binding activity, resulting in decreased viral attachment and infection in cell culture. More importantly, residue N142 when mutated reduced viral replication in limb muscle and spinal cord of infected mice, leading to lower mortality and less severe clinical symptoms. Additionally, residue N142 when mutated could decrease viral binding affinity to anti-CVA10 polyclonal antibodies and a neutralizing monoclonal antibody and render CVA10 resistant to neutralization by the anti-CVA10 antibodies. Overall, our study highlights the essential role of VP2 residue N142 of CVA10 in the interactions with KREMEN1 receptor and neutralizing antibodies and viral virulence in mice, facilitating the understanding of the molecular mechanisms of CVA10 infection and immunity. Our study also provides important information for rational development of antibody-based treatment and vaccines against CVA10 infection.
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Affiliation(s)
- Xue Li
- Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
- Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Zeyu Liu
- Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
- Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Xingyu Yan
- Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Yuan Tian
- Institutional Center for Shared Technologies and Facilities of Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China
| | - Kexin Liu
- Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Yue Zhao
- Institutional Center for Shared Technologies and Facilities of Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China
| | - Jiang Shao
- Institutional Center for Shared Technologies and Facilities of Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China
| | - Pei Hao
- Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Chao Zhang
- Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
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Wang J, Liu H, Cao Z, Xu J, Guo J, Zhao L, Wang R, Xu Y, Gao R, Gao L, Zuo Z, Xiao J, Lu H, Zhang Y. Epidemiology of Hand, Foot, and Mouth Disease and Genetic Evolutionary Characteristics of Coxsackievirus A10 in Taiyuan City, Shanxi Province from 2016 to 2020. Viruses 2023; 15:v15030694. [PMID: 36992403 PMCID: PMC10052898 DOI: 10.3390/v15030694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023] Open
Abstract
In recent years, the prevalence of hand, foot, and mouth disease (HFMD) caused by enteroviruses other than enterovirus A71 (EV-A71) and coxsackievirus A16 (CVA16) has gradually increased. The throat swab specimens of 2701 HFMD cases were tested, the VP1 regions of CVA10 RNA were amplified using RT-PCR, and phylogenetic analysis of CVA10 was performed. Children aged 1–5 years accounted for the majority (81.65%) and boys were more than girls. The positivity rates of EV-A71, CVA16, and other EVs were 15.22% (219/1439), 28.77% (414/1439), and 56.01% (806/1439), respectively. CVA10 is one of the important viruses of other EVs. A total of 52 CVA10 strains were used for phylogenetic analysis based on the VP1 region, 31 were from this study, and 21 were downloaded from GenBank. All CVA10 sequences could be assigned to seven genotypes (A, B, C, D, E, F, and G), and genotype C was further divided into C1 and C2 subtypes, only one belonged to subtype C1 and the remaining 30 belonged to C2 in this study. This study emphasized the importance of strengthening the surveillance of HFMD to understand the mechanisms of pathogen variation and evolution, and to provide a scientific basis for HFMD prevention, control, and vaccine development.
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Affiliation(s)
- Jitao Wang
- School of Public Health, Shanxi Medical University, 56 Xinjian South Road, Taiyuan 030001, China
- Taiyuan Center for Disease Control and Prevention, 89 Xinjian South Road, Taiyuan 030012, China
- Correspondence: (J.W.); (Y.Z.); Fax: +86-0351-7822732 (J.W.); +86-10-58900184 (Y.Z.)
| | - Hongyan Liu
- School of Public Health, Shanxi Medical University, 56 Xinjian South Road, Taiyuan 030001, China
| | - Zijun Cao
- School of Public Health, Shanxi Medical University, 56 Xinjian South Road, Taiyuan 030001, China
| | - Jihong Xu
- Taiyuan Center for Disease Control and Prevention, 89 Xinjian South Road, Taiyuan 030012, China
| | - Jiane Guo
- Taiyuan Center for Disease Control and Prevention, 89 Xinjian South Road, Taiyuan 030012, China
| | - Lifeng Zhao
- Taiyuan Center for Disease Control and Prevention, 89 Xinjian South Road, Taiyuan 030012, China
| | - Rui Wang
- Taiyuan Center for Disease Control and Prevention, 89 Xinjian South Road, Taiyuan 030012, China
| | - Yang Xu
- Taiyuan Center for Disease Control and Prevention, 89 Xinjian South Road, Taiyuan 030012, China
| | - Ruihong Gao
- Taiyuan Center for Disease Control and Prevention, 89 Xinjian South Road, Taiyuan 030012, China
| | - Li Gao
- Taiyuan Center for Disease Control and Prevention, 89 Xinjian South Road, Taiyuan 030012, China
| | - Zhihong Zuo
- Taiyuan Center for Disease Control and Prevention, 89 Xinjian South Road, Taiyuan 030012, China
| | - Jinbo Xiao
- WHO WPRO Regional Polio Reference Laboratory, National Health Commission Key Laboratory of Biosafety, National Health Commission Key Laboratory of Medical Virology, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Huanhuan Lu
- WHO WPRO Regional Polio Reference Laboratory, National Health Commission Key Laboratory of Biosafety, National Health Commission Key Laboratory of Medical Virology, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Yong Zhang
- WHO WPRO Regional Polio Reference Laboratory, National Health Commission Key Laboratory of Biosafety, National Health Commission Key Laboratory of Medical Virology, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
- Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan 430071, China
- Correspondence: (J.W.); (Y.Z.); Fax: +86-0351-7822732 (J.W.); +86-10-58900184 (Y.Z.)
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5
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Zhu P, Ji W, Li D, Li Z, Chen Y, Dai B, Han S, Chen S, Jin Y, Duan G. Current status of hand-foot-and-mouth disease. J Biomed Sci 2023; 30:15. [PMID: 36829162 PMCID: PMC9951172 DOI: 10.1186/s12929-023-00908-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 02/16/2023] [Indexed: 02/26/2023] Open
Abstract
Hand-foot-and-mouth disease (HFMD) is a viral illness commonly seen in young children under 5 years of age, characterized by typical manifestations such as oral herpes and rashes on the hands and feet. These symptoms typically resolve spontaneously within a few days without complications. Over the past two decades, our understanding of HFMD has greatly improved and it has received significant attention. A variety of research studies, including epidemiological, animal, and in vitro studies, suggest that the disease may be associated with potentially fatal neurological complications. These findings reveal clinical, epidemiological, pathological, and etiological characteristics that are quite different from initial understandings of the illness. It is important to note that HFMD has been linked to severe cardiopulmonary complications, as well as severe neurological sequelae that can be observed during follow-up. At present, there is no specific pharmaceutical intervention for HFMD. An inactivated Enterovirus A71 (EV-A71) vaccine that has been approved by the China Food and Drug Administration (CFDA) has been shown to provide a high level of protection against EV-A71-related HFMD. However, the simultaneous circulation of multiple pathogens and the evolution of the molecular epidemiology of infectious agents make interventions based solely on a single agent comparatively inadequate. Enteroviruses are highly contagious and have a predilection for the nervous system, particularly in child populations, which contributes to the ongoing outbreak. Given the substantial impact of HFMD around the world, this Review synthesizes the current knowledge of the virology, epidemiology, pathogenesis, therapy, sequelae, and vaccine development of HFMD to improve clinical practices and public health efforts.
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Affiliation(s)
- Peiyu Zhu
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Wangquan Ji
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Dong Li
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Zijie Li
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Yu Chen
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Bowen Dai
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Shujie Han
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Shuaiyin Chen
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Yuefei Jin
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
| | - Guangcai Duan
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001, China. .,Academy of Medical Science, Zhengzhou University, Zhengzhou, 450001, Henan, China.
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6
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Wang J, Liu J, Fang F, Wu J, Ji T, Yang Y, Liu L, Li C, Zhang W, Zhang X, Teng Z. Genomic surveillance of coxsackievirus A10 reveals genetic features and recent appearance of genogroup D in Shanghai, China, 2016–2020. Virol Sin 2022; 37:177-186. [PMID: 35234621 PMCID: PMC9170976 DOI: 10.1016/j.virs.2022.01.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 01/14/2022] [Indexed: 02/06/2023] Open
Abstract
Coxsackievirus A10 (CVA10) is one of the major causative agents of hand, foot and mouth disease (HFMD). To investigate the epidemiological characteristics as well as genetic features of CVA10 currently circulating in Shanghai, China, we collected a total of 9,952 sporadic HFMD cases from January 2016 to December 2020. In the past five years, CVA10 was the fourth prevalent causatives associated with HFMD in Shanghai and the overall positive rate was 2.78%. The annual distribution experienced significant fluctuations over the past five years. In addition to entire VP1 sequencing, complete genome sequencing and recombination analysis of CVA10 isolates in Shanghai were further performed. A total of 64 near complete genomes and 11 entire VP1 sequences in this study combined with reference sequences publicly available were integrated into phylogenetic analysis. The CVA10 sequences in this study mainly belonged to genogroup C and presented 91%–100% nucleotide identity with other Chinese isolates based on VP1 region. For the first time, our study reported the appearance of CVA10 genogroup D in Chinese mainland, which had led to large-scale outbreaks in Europe previously. The recombination analysis showed the recombination break point located between 5,100 nt and 6,700 nt, which suggesting intertypic recombination with CVA16 genogroup D. To conclusion, CVA10 genogroup C was the predominant genogroup in Shanghai during 2016–2020. CVA10 recombinant genogroup D was firstly reported in circulating in Chinese mainland. Continuous surveillance is needed to better understand the evolution relationships and transmission pathways of CVA10 to help to guide disease control and prevention. Systematic profiles of genetic features of CVA10 near complete genome. First report of the appearance of CVA10 genogroup D in Chinese mainland. Genomic comparisons indicate the potential recombinant origin of CVA10 genogroup D.
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7
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Li K, Dong F, Cui B, Cui L, Liu P, Ma C, Zheng H, Wu X, Liang Z. Development of a pseudovirus-based assay for measuring neutralizing antibodies against Coxsackievirus A10. Hum Vaccin Immunother 2020; 16:1434-1440. [PMID: 31851566 DOI: 10.1080/21645515.2019.1691404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Coxsackievirus A10 (CV-A10) has recently emerged as a major pathogen of hand, foot, and mouth disease in children worldwide. Currently no effective treatments are available; development of anti-CV-A10 vaccine is a most cost-effective way for CV-A10 prevention. Robust assay to measure neutralizing antibody (NtAb) titres elicited by vaccination would greatly prompt anti-CV-A10 vaccine development. Compare to the traditional neutralization assay based on inhibition of cytopathic effects (herein after referred to as cNT) which is time-consuming and labor-intensive, in this study we developed an efficient high-throughput neutralization antibody assay based on CV-A10 pseudoviruses (herein after referred to as pNT). In the pNT, anti-CV-A10 NtAb titre was negatively corresponded with the relative luminescent unit (RLU) produced by luciferase reporter gene incorporated in pseudovirus genome. As described in this study, the NtAb against CV-A10 could be detected within 10-16 h, anti- CV-A10 NtAb in 67 human serum samples were measured in parallel with pNT and cNT assays, a good correlation (r = 0.83,p < .0001) and good agreement(97%) were shown between cNT and pNT, indicating that the pNT provides a rapid and convenient procedure for measuring NtAb production against anti-CV-A10 NtAb measurement.
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Affiliation(s)
- Kelei Li
- Division of Hepatitis Virus Vaccines, National Institute for Food and Drug Control , Beijing, China.,Research and Development Center, Minhai Biotechnology Co. Ltd , Beijing, China
| | - Fangyu Dong
- Division of Hepatitis Virus Vaccines, National Institute for Food and Drug Control , Beijing, China.,The Second Department of Research, Lanzhou Institute of Biological Products Co. Ltd , Lanzhou, China
| | - Bopei Cui
- Division of Hepatitis Virus Vaccines, National Institute for Food and Drug Control , Beijing, China
| | - Lisha Cui
- The Second Department of Research, Changchun Institute of Biological Products Co. Ltd , Changchun, China
| | - Pei Liu
- Division of Hepatitis Virus Vaccines, National Institute for Food and Drug Control , Beijing, China
| | - Chao Ma
- The Second Department of Research, Lanzhou Institute of Biological Products Co. Ltd , Lanzhou, China
| | - Haifa Zheng
- Research and Development Center, Minhai Biotechnology Co. Ltd , Beijing, China
| | - Xing Wu
- Division of Hepatitis Virus Vaccines, National Institute for Food and Drug Control , Beijing, China
| | - Zhenglun Liang
- Division of Hepatitis Virus Vaccines, National Institute for Food and Drug Control , Beijing, China
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8
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Xie J, Yang XH, Hu SQ, Zhan WL, Zhang CB, Liu H, Zhao HY, Chai HY, Chen KY, Du QY, Liu P, Yin AH, Luo MY. Co-circulation of coxsackieviruses A-6, A-10, and A-16 causes hand, foot, and mouth disease in Guangzhou city, China. BMC Infect Dis 2020; 20:271. [PMID: 32264839 PMCID: PMC7137261 DOI: 10.1186/s12879-020-04992-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 03/25/2020] [Indexed: 12/15/2022] Open
Abstract
Background Hand, foot, and mouth disease (HFMD) is a common infectious disease occurring in children under 5 years of age worldwide, and Enterovirus A71 (EV-A71) and Coxsackievirus A16 (CVA-16) are identified as the predominant pathogens. In recent years, Coxsackievirus A6 (CVA-6) and Coxsackievirus A10 (CVA-10) have played more and more important role in a series of HFMD outbreaks. This study aimed to understand the epidemic characteristics associated with HFMD outbreak in Guangzhou, 2018. Methods The clinical and laboratory data of 1220 enterovirus-associated HFMD patients in 2018 were analysed in this study. Molecular diagnostic methods were performed to identify its serotypes. Phylogenetic analyses were depicted based on the complete VP1 gene. Results There were 21 enterovirus serotypes detected in Guangzhou in 2018. Three serotypes of enterovirus, CVA-6 (364/1220, 29.8%), CVA-10 (305/1220, 25.0%), and CVA-16 (397/1220, 32.5%), were identified as the causative pathogens and accounted for 87.3% among all 1220 HFMD patients. In different seasons, CVA-6 was the predominant pathogen of HFMD during autumn, and CVA-10 as well as CVA-16 were more prevalent in summer. Patients infected by CVA-6, CVA-10 or CVA-16 showed similar clinical features and laboratory characteristics, and the ratios of severe HFMD were 5.8, 5.9, and 1.5% in the three serotypes. Phylogenetic analyses of VP1 sequences showed that the CVA-6, CVA-10, and CVA-16 sequences belonged to the sub-genogroup E2, genogroup E, and genogroup B1, respectively. Conclusions CVA-6, CVA-10, and CVA-16 were the predominant and co-circulated serotypes in Guangzhou China, 2018, which should be the new target for prevention and control of HFMD. Our findings provide useful information for diagnosis, treatment, and prevention of HFMD.
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Affiliation(s)
- Jia Xie
- Medical Genetic Centre, Guangdong Women and Children's Hospital, Guangzhou Medical University, Guangzhou, 511442, People's Republic of China
| | - Xiao-Han Yang
- Medical Genetic Centre, Guangdong Women and Children's Hospital, Guangzhou Medical University, Guangzhou, 511442, People's Republic of China.,Medical Genetic Centre, Guangdong Women and Children Hospital, Guangzhou, 511442, People's Republic of China
| | - Si-Qi Hu
- Medical Genetic Centre, Guangdong Women and Children's Hospital, Guangzhou Medical University, Guangzhou, 511442, People's Republic of China
| | - Wen-Li Zhan
- Medical Genetic Centre, Guangdong Women and Children's Hospital, Guangzhou Medical University, Guangzhou, 511442, People's Republic of China.,Medical Genetic Centre, Guangdong Women and Children Hospital, Guangzhou, 511442, People's Republic of China
| | - Chang-Bin Zhang
- Medical Genetic Centre, Guangdong Women and Children's Hospital, Guangzhou Medical University, Guangzhou, 511442, People's Republic of China.,Medical Genetic Centre, Guangdong Women and Children Hospital, Guangzhou, 511442, People's Republic of China
| | - Hong Liu
- Department of Pediatrics, Guangdong Women and Children Hospital, Guangzhou, 511442, People's Republic of China
| | - Hong-Yu Zhao
- Medical Genetic Centre, Guangdong Women and Children's Hospital, Guangzhou Medical University, Guangzhou, 511442, People's Republic of China.,Medical Genetic Centre, Guangdong Women and Children Hospital, Guangzhou, 511442, People's Republic of China
| | - Hui-Ying Chai
- Medical Genetic Centre, Guangdong Women and Children's Hospital, Guangzhou Medical University, Guangzhou, 511442, People's Republic of China.,Medical Genetic Centre, Guangdong Women and Children Hospital, Guangzhou, 511442, People's Republic of China
| | - Ke-Yi Chen
- Medical Genetic Centre, Guangdong Women and Children's Hospital, Guangzhou Medical University, Guangzhou, 511442, People's Republic of China.,Medical Genetic Centre, Guangdong Women and Children Hospital, Guangzhou, 511442, People's Republic of China
| | - Qian-Yi Du
- Medical Genetic Centre, Guangdong Women and Children's Hospital, Guangzhou Medical University, Guangzhou, 511442, People's Republic of China.,Medical Genetic Centre, Guangdong Women and Children Hospital, Guangzhou, 511442, People's Republic of China
| | - Pan Liu
- Medical Genetic Centre, Guangdong Women and Children's Hospital, Guangzhou Medical University, Guangzhou, 511442, People's Republic of China.,Medical Genetic Centre, Guangdong Women and Children Hospital, Guangzhou, 511442, People's Republic of China
| | - Ai-Hua Yin
- Medical Genetic Centre, Guangdong Women and Children's Hospital, Guangzhou Medical University, Guangzhou, 511442, People's Republic of China.,Medical Genetic Centre, Guangdong Women and Children Hospital, Guangzhou, 511442, People's Republic of China
| | - Ming-Yong Luo
- Medical Genetic Centre, Guangdong Women and Children's Hospital, Guangzhou Medical University, Guangzhou, 511442, People's Republic of China. .,Medical Genetic Centre, Guangdong Women and Children Hospital, Guangzhou, 511442, People's Republic of China.
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9
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Liu Q, Dan H, Zhao X, Chen H, Chen Y, Zhang N, Mo Z, Liu H. Construction and characterization of an infectious cDNA clone of coxsackievirus A 10. Virol J 2019; 16:98. [PMID: 31387601 PMCID: PMC6685229 DOI: 10.1186/s12985-019-1201-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 07/18/2019] [Indexed: 01/07/2023] Open
Abstract
Background Coxsackievirus A10 (CA10) constitutes one of the four major pathogens causing hand, foot and mouth disease in infants. Infectious clones are of great importance for studying viral gene functions and pathogenic mechanism. However, there is no report on the construction of CA10 infectious clones. Methods The whole genome of CA10 derived from a clinical isolate was amplified into two fragments and ligated into a linearized plasmid vector in one step by In-Fusion Cloning. The obtained CA10 cDNA clones and plasmids encoding T7 RNA polymerase were co-transfected into 293 T cells to rescue CA10 virus. The rescued virus was identified by SDS-PAGE, Western blotting and transmission electron microscopic. One-day-old ICR mice were intracerebrally inoculated with the CA10 virus and clinical symptoms were observed. Multiple tissues of moribund mice were harvested for analysis of pathogenic changes and viral distribution by using H&E staining, real-time PCR and immunohistochemical staining. Results CA10 viruses were rescued from the constructed cDNA clone and reached a maximum titer of 108.125TCID50/mL after one generation in RD cells. The virus exhibited similar physical and chemical properties to those of the parental virus. It also showed high virulence and the ability to induce death of neonatal ICR mice. Severe necrotizing myositis, intestinal villus interstitial edema and severe alveolar shrinkage were observed in infected mice. The viral antigen and the maximum amount of viral RNA were detected in limb skeletal muscles, which suggested that the limb skeletal muscles were the most likely site of viral replication. Conclusion Infectious clones of CA10 were successfully constructed for the first time, which will facilitate the establishment of standardized neonatal mouse models infected with CA10 for the evaluation of vaccines and antiviral drugs, as well as preservation and sharing of model strains.
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Affiliation(s)
- Qiliang Liu
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China.,College of Bio-technology, Guilin Medical University, Guilin, Guangxi, China
| | - Hanliang Dan
- College of Laboratory Medicine, Guilin Medical University, Guilin, Guangxi, China
| | - Xiaoping Zhao
- College of Laboratory Medicine, Guilin Medical University, Guilin, Guangxi, China
| | - Huoying Chen
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Yongbei Chen
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Ning Zhang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Zhijing Mo
- College of Bio-technology, Guilin Medical University, Guilin, Guangxi, China.
| | - Hongbo Liu
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China. .,Center of Diabetic Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University, Guilin, China.
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10
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Mourya DT, Yadav PD, Ullas P, Bhardwaj SD, Sahay RR, Chadha MS, Shete AM, Jadhav S, Gupta N, Gangakhedkar RR, Khasnobis P, Singh SK. Emerging/re-emerging viral diseases & new viruses on the Indian horizon. Indian J Med Res 2019; 149:447-467. [PMID: 31411169 PMCID: PMC6676836 DOI: 10.4103/ijmr.ijmr_1239_18] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Indexed: 12/18/2022] Open
Abstract
Infectious diseases remain as the major causes of human and animal morbidity and mortality leading to significant healthcare expenditure in India. The country has experienced the outbreaks and epidemics of many infectious diseases. However, enormous successes have been obtained against the control of major epidemic diseases, such as malaria, plague, leprosy and cholera, in the past. The country's vast terrains of extreme geo-climatic differences and uneven population distribution present unique patterns of distribution of viral diseases. Dynamic interplays of biological, socio-cultural and ecological factors, together with novel aspects of human-animal interphase, pose additional challenges with respect to the emergence of infectious diseases. The important challenges faced in the control and prevention of emerging and re-emerging infectious diseases range from understanding the impact of factors that are necessary for the emergence, to development of strengthened surveillance systems that can mitigate human suffering and death. In this article, the major emerging and re-emerging viral infections of public health importance have been reviewed that have already been included in the Integrated Disease Surveillance Programme.
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Affiliation(s)
| | | | - P.T. Ullas
- Maximum Containment Laboratory, Pune, India
| | | | | | | | | | | | - Nivedita Gupta
- Division of Epidemiology and Communicable Diseases, Indian Council of Medical Research, New Delhi, India
| | - Raman R. Gangakhedkar
- Division of Epidemiology and Communicable Diseases, Indian Council of Medical Research, New Delhi, India
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11
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Dai W, Xiong P, Zhang X, Liu Z, Chen J, Zhou Y, Ye X, Zhang C. Recombinant virus-like particle presenting a newly identified coxsackievirus A10 neutralization epitope induces protective immunity in mice. Antiviral Res 2019; 164:139-146. [PMID: 30817941 DOI: 10.1016/j.antiviral.2019.02.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 02/17/2019] [Accepted: 02/24/2019] [Indexed: 02/06/2023]
Abstract
Coxsackievirus A10 (CVA10) has emerged as one of the major pathogens of hand, foot, and mouth disease in recent years. However, there are no approved vaccines or effective drugs against CVA10. Several experimental CVA10 vaccines have been shown to elicit neutralizing antibodies that could confer protection against viral infection. However, neutralizing antigenic sites on CVA10 capsid have not been well characterized. Here, we report the characterization of linear neutralization epitopes of CVA10 and the development of a CVA10 vaccine based on the identified epitopes. We showed that peptide VP2-P28, corresponding to residues 136 to 150 of VP2, were recognized by anti-inactivated CVA10 sera and effectively inhibited anti-CVA10 sera-mediated neutralization, suggesting that this peptide contains neutralizing epitopes. Insertion of VP2-P28 into hepatitis B core antigen (HBc) resulted in a chimeric virus-like particle (VLP; designated HBc-P28) with the CVA10 epitope exposed on the particle surface. HBc-P28 VLP elicited strong antibody responses against VP2-P28 in mice. Anti-HBc-P28 sera could neutralize both CVA10 clinical isolates and prototype strain, consistent with the fact that the VP2-P28 sequence is highly conserved among CVA10 strains. In addition, anti-HBc-P28 sera failed to cross-neutralize other HFMD-causing enteroviruses, indicating that neutralizing antibodies elicited by HBc-P28 VLP were CVA10-specific. Importantly, anti-HBc-P28 sera were able to provide efficient protection against lethal CVA10 infection in recipient mice. Collectively, these data show that peptide VP2-P28 represents a CVA10-specific linear neutralizing antigenic site and chimeric VLP displaying this peptide is a promising epitope-based CVA10 vaccine candidate.
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Affiliation(s)
- Wenlong Dai
- Vaccine Research Center, CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Pei Xiong
- Vaccine Research Center, CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Xueyang Zhang
- Vaccine Research Center, CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Zhi Liu
- Biological Imaging and Instrumental Analysis Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Jinhuan Chen
- National Center for Protein Science Shanghai, State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Yu Zhou
- Vaccine Research Center, CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Xiaohua Ye
- Vaccine Research Center, CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Chao Zhang
- Vaccine Research Center, CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China; Joint Center for Infection and Immunity, Guangzhou Institute of Pediatrics, Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.
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