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Ly YT, Arndt F, Boschert AL, Pavletić B, Webner F, Kohl A, Grübbel H, Soltau J, Talai I, Diallo MD, Westhoff A, Schreiber A, Hecking T, Duschek F, Grünewald K, Meller F, Biedermann J, Rinderknecht F, Kraft W, Schmeling D, Jordan J, Moeller R. [After the pandemic is before the pandemic: And how interdisciplinary research can help here]. Laryngorhinootologie 2024; 103:570-577. [PMID: 38471543 DOI: 10.1055/a-2249-4201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Aviation is among the social sectors most impacted by the COVID-19 pandemic, and at the same time has contributed to the rapid global spread of the SARS-CoV-2 virus. SARS-CoV-2 is one of the coronaviruses that have led to outbreaks such as MERS-CoV in the past. This group of pathogens, as well as others that may be unknown at this time, will continue to challenge our society in the future. In order to be able to react better, a research training group was established at DLR in cooperation with 6 institutes, which will develop interdisciplinary approaches to researching and combating current and future pandemics. Engineers, physicists, software developers, biologists and physicians are working closely together on new concepts and the development of interdisciplinary knowledge in order to better control and contain future pandemics and to be able to react in a more targeted manner. One focus is the reduction of germ contamination in airplanes but also in other means of public transport such as buses and trains. In this review, we provide an overview of the baseline situation and possible approaches to address future pandemic challenges.
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Affiliation(s)
- Yen-Tran Ly
- Institut für Luft- und Raumfahrtmedizin, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Köln
| | - Franca Arndt
- Institut für Luft- und Raumfahrtmedizin, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Köln
| | - Alessa L Boschert
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene,, Universitätsklinikum, Köln
| | - Bruno Pavletić
- Institut für Luft- und Raumfahrtmedizin, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Köln
| | - Florian Webner
- Institut für Aerodynamik und Strömungstechnik, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Göttingen
| | - Andreas Kohl
- Institut für Aerodynamik und Strömungstechnik, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Göttingen
| | - Henrik Grübbel
- Institut für Fahrzeugkonzepte, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Stuttgart
| | - Julian Soltau
- Institut für Technische Physik, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Stuttgart
| | - Iman Talai
- Institut für Systemarchitekturen in der Luftfahrt, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Hamburg
| | | | - Andreas Westhoff
- Institut für Aerodynamik und Strömungstechnik, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Göttingen
| | - Andreas Schreiber
- Institut für Softwaretechnologie, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Köln
| | - Tobias Hecking
- Institut für Softwaretechnologie, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Köln
| | - Frank Duschek
- Institut für Technische Physik, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Stuttgart
| | - Karin Grünewald
- Institut für Technische Physik, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Stuttgart
| | - Frank Meller
- Institut für Systemarchitekturen in der Luftfahrt, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Hamburg
| | - Jörn Biedermann
- Institut für Systemarchitekturen in der Luftfahrt, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Hamburg
| | - Frank Rinderknecht
- Institut für Fahrzeugkonzepte, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Stuttgart
| | - Werner Kraft
- Institut für Fahrzeugkonzepte, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Stuttgart
| | - Daniel Schmeling
- Institut für Aerodynamik und Strömungstechnik, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Göttingen
| | - Jens Jordan
- Institut für Luft- und Raumfahrtmedizin, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Köln
| | - Ralf Moeller
- Institut für Luft- und Raumfahrtmedizin, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Köln
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2
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Yang YR, Han J, Perrett HR, Richey ST, Rodriguez AJ, Jackson AM, Gillespie RA, O'Connell S, Raab JE, Cominsky LY, Chopde A, Kanekiyo M, Houser KV, Chen GL, McDermott AB, Andrews SF, Ward AB. Immune memory shapes human polyclonal antibody responses to H2N2 vaccination. Cell Rep 2024; 43:114171. [PMID: 38717904 PMCID: PMC11156625 DOI: 10.1016/j.celrep.2024.114171] [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: 08/24/2023] [Revised: 03/25/2024] [Accepted: 04/16/2024] [Indexed: 05/21/2024] Open
Abstract
Influenza A virus subtype H2N2, which caused the 1957 influenza pandemic, remains a global threat. A recent phase 1 clinical trial investigating a ferritin nanoparticle vaccine displaying H2 hemagglutinin (HA) in H2-naive and H2-exposed adults enabled us to perform comprehensive structural and biochemical characterization of immune memory on the breadth and diversity of the polyclonal serum antibody response elicited. We temporally map the epitopes targeted by serum antibodies after vaccine prime and boost, revealing that previous H2 exposure results in higher responses to the variable HA head domain. In contrast, initial responses in H2-naive participants are dominated by antibodies targeting conserved epitopes. We use cryoelectron microscopy and monoclonal B cell isolation to describe the molecular details of cross-reactive antibodies targeting conserved epitopes on the HA head, including the receptor-binding site and a new site of vulnerability deemed the medial junction. Our findings accentuate the impact of pre-existing influenza exposure on serum antibody responses post-vaccination.
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Affiliation(s)
- Yuhe R Yang
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA; Chinese Academy of Sciences Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Julianna Han
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Hailee R Perrett
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Sara T Richey
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Alesandra J Rodriguez
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Abigail M Jackson
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Rebecca A Gillespie
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Sarah O'Connell
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Julie E Raab
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Lauren Y Cominsky
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Ankita Chopde
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Masaru Kanekiyo
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Katherine V Houser
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Grace L Chen
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Adrian B McDermott
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Sarah F Andrews
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA.
| | - Andrew B Ward
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
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3
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Liu S, Hu M, Liu X, Liu X, Chen T, Zhu Y, Liang T, Xiao S, Li P, Ma X. Nanoparticles and Antiviral Vaccines. Vaccines (Basel) 2023; 12:30. [PMID: 38250843 PMCID: PMC10819235 DOI: 10.3390/vaccines12010030] [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: 11/22/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 01/23/2024] Open
Abstract
Viruses have threatened human lives for decades, causing both chronic and acute infections accompanied by mild to severe symptoms. During the long journey of confrontation, humans have developed intricate immune systems to combat viral infections. In parallel, vaccines are invented and administrated to induce strong protective immunity while generating few adverse effects. With advancements in biochemistry and biophysics, different kinds of vaccines in versatile forms have been utilized to prevent virus infections, although the safety and effectiveness of these vaccines are diverse from each other. In this review, we first listed and described major pathogenic viruses and their pandemics that emerged in the past two centuries. Furthermore, we summarized the distinctive characteristics of different antiviral vaccines and adjuvants. Subsequently, in the main body, we reviewed recent advances of nanoparticles in the development of next-generation vaccines against influenza viruses, coronaviruses, HIV, hepatitis viruses, and many others. Specifically, we described applications of self-assembling protein polymers, virus-like particles, nano-carriers, and nano-adjuvants in antiviral vaccines. We also discussed the therapeutic potential of nanoparticles in developing safe and effective mucosal vaccines. Nanoparticle techniques could be promising platforms for developing broad-spectrum, preventive, or therapeutic antiviral vaccines.
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Affiliation(s)
- Sen Liu
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou 510005, China; (S.L.); (M.H.); (X.L.); (X.L.); (T.C.); (Y.Z.); (T.L.); (S.X.); (P.L.)
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Meilin Hu
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou 510005, China; (S.L.); (M.H.); (X.L.); (X.L.); (T.C.); (Y.Z.); (T.L.); (S.X.); (P.L.)
- State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou 511400, China
| | - Xiaoqing Liu
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou 510005, China; (S.L.); (M.H.); (X.L.); (X.L.); (T.C.); (Y.Z.); (T.L.); (S.X.); (P.L.)
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - Xingyu Liu
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou 510005, China; (S.L.); (M.H.); (X.L.); (X.L.); (T.C.); (Y.Z.); (T.L.); (S.X.); (P.L.)
| | - Tao Chen
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou 510005, China; (S.L.); (M.H.); (X.L.); (X.L.); (T.C.); (Y.Z.); (T.L.); (S.X.); (P.L.)
- State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou 511400, China
| | - Yiqiang Zhu
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou 510005, China; (S.L.); (M.H.); (X.L.); (X.L.); (T.C.); (Y.Z.); (T.L.); (S.X.); (P.L.)
| | - Taizhen Liang
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou 510005, China; (S.L.); (M.H.); (X.L.); (X.L.); (T.C.); (Y.Z.); (T.L.); (S.X.); (P.L.)
- State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou 511400, China
| | - Shiqi Xiao
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou 510005, China; (S.L.); (M.H.); (X.L.); (X.L.); (T.C.); (Y.Z.); (T.L.); (S.X.); (P.L.)
| | - Peiwen Li
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou 510005, China; (S.L.); (M.H.); (X.L.); (X.L.); (T.C.); (Y.Z.); (T.L.); (S.X.); (P.L.)
| | - Xiancai Ma
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou 510005, China; (S.L.); (M.H.); (X.L.); (X.L.); (T.C.); (Y.Z.); (T.L.); (S.X.); (P.L.)
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
- State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou 511400, China
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
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4
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Tanaka YL, Shofa M, Butlertanaka EP, Niazi AM, Hirai T, Mekata H, Saito A. Generation of a Porcine Cell Line Stably Expressing Pig TMPRSS2 for Efficient Isolation of Swine Influenza Virus. Pathogens 2023; 13:18. [PMID: 38251326 PMCID: PMC10818301 DOI: 10.3390/pathogens13010018] [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: 11/26/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/23/2024] Open
Abstract
Pigs are important animals for meat production but can carry several zoonotic diseases, including the Japanese encephalitis virus, Nipah virus, and influenza viruses. Several Orthomyxoviridae and Coronavirinae respiratory viruses require cleavage of envelope proteins to acquire viral infectivity and consequently, need a host protease or the addition of exogenous trypsin for efficient propagation. Host TMPRSS2 is a key protease responsible for viral cleavage. Stable expression of human TMPRSS2 in African green monkey-derived Vero cells can enhance the porcine epidemic diarrhea virus. However, considering the narrow host tropism of viruses, a porcine cell line expressing pig TMPRSS2 could be optimal for replicating pig-derived viruses. Herein, we generated and evaluated a pig-derived PK-15 cell line stably expressing pig TMPRSS2. This cell line markedly (>1000-fold) and specifically enhanced the growth of influenza viruses. Furthermore, we demonstrated the usefulness of a PK-15 cell line lacking the Stat2 gene with a stable expression of pig TMPRSS2 for efficient virus isolation from clinical samples in the presence of type I interferons. Therefore, PK-15 cells expressing pig TMPRSS2 could be a valuable and promising tool for virus isolation, vaccine production, and virological studies of TMPRSS2-dependent viruses.
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Affiliation(s)
- Yuri L Tanaka
- Laboratory of Veterinary Microbiology, Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki 8892192, Japan
| | - Maya Shofa
- Laboratory of Veterinary Microbiology, Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki 8892192, Japan
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 8891692, Japan
| | - Erika P Butlertanaka
- Laboratory of Veterinary Microbiology, Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki 8892192, Japan
| | - Ahmad Massoud Niazi
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 8891692, Japan
- Laboratory of Veterinary Pathology, Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki 8892192, Japan
| | - Takuya Hirai
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 8891692, Japan
- Laboratory of Veterinary Pathology, Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki 8892192, Japan
| | - Hirohisa Mekata
- Center for Animal Disease Control, University of Miyazaki, Miyazaki 8892192, Japan
| | - Akatsuki Saito
- Laboratory of Veterinary Microbiology, Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki 8892192, Japan
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 8891692, Japan
- Center for Animal Disease Control, University of Miyazaki, Miyazaki 8892192, Japan
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Hu X, Sun X, Zhao Y, Iv C, Sun X, Jin M, Zhang Q. GlcNac produced by the gut microbiome enhances host influenza resistance by modulating NK cells. Gut Microbes 2023; 15:2271620. [PMID: 37953509 PMCID: PMC10730189 DOI: 10.1080/19490976.2023.2271620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 10/12/2023] [Indexed: 11/14/2023] Open
Abstract
Microbiota are known to modulate the host response to influenza infection, but the mechanisms remain largely unknown. Gut metabolites are the key mediators through which gut microbes play anti-influenza effect. Transferring fecal metabolites from mice with high influenza resistance into antibiotic-treated recipient mice conferred resistance to influenza infections. By comparing the metabolites of different individuals with high or low influenza resistance, we identified and validated N-acetyl-D-glucosamine (GlcNAc) and adenosine showed strong positive correlations with influenza resistance and exerted anti-influenza effects in vivo or in vitro, respectively. Especially, GlcNAc mediated the anti-influenza effect by increasing the proportion and activity of NK cells. Several gut microbes, including Clostridium sp., Phocaeicola sartorii, and Akkermansia muciniphila, were positively correlated with influenza resistance, and can upregulate the level of GlcNAc in the mouse gut by exogenous supplementation. Subsequent studies confirmed that administering a combination of the three bacteria to mice via gavage resulted in similar modulation of NK cell responses as observed with GlcNAc. This study demonstrates that gut microbe-produced GlcNAc protects the host against influenza by regulating NK cells, facilitating the elucidation of the action mechanism of gut microbes mediating host influenza resistance.
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Affiliation(s)
- Xiaotong Hu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Xiaolu Sun
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Ya Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Changjie Iv
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Xiaomei Sun
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Meilin Jin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
- Emerging Disease Research Center, Keqian Institute of Biology, Keqian Biological Co. Ltd, Wuhan, China
| | - Qiang Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Biomedicine and Health, Huazhong Agricultural University and Hubei jiangxia Laboratory, Wuhan, China
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Yang Y, Huang Y, Huang K, Zhang Y, Hu X, Zou W, Wu C, Hui X, Li C, Zhao Y, Sun X, Zou Z, Jin M. Isolation and identification of Eurasian avian-like H1N1 swine influenza virus and evaluation of their pathogenicity and immune protective effects in pigs. Vet Microbiol 2023; 284:109827. [PMID: 37542928 DOI: 10.1016/j.vetmic.2023.109827] [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: 03/02/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 08/07/2023]
Abstract
Swine influenza (SI) is a severe disease affecting pigs, with a huge economic impact on pig farmers. Currently, available SIV vaccines do not meet the requirements for Swine influenza prevention and control, indicating the need for vaccine development using predominant strains. Here, we isolated and identified the swine influenza virus in farms and slaughterhouses in nine provinces in China to determine the most prevalent strain. A total of 8383 samples were collected between 2013 and 2022, from which 87 swine influenza virus strains were isolated. Genome sequencing identified 62 strains of the H1N1 subtype, three strains of the H1N2 subtype, and 22 strains of the H3N2 subtype. The 521# strain virus possesses the viral ribonucleoprotein (vRNP) and matrix (M) genes from the pdm/09 lineage, the HA, NA from the original Eurasian avian-like (EA) H1N1 lineage, and the nonstructural (NS) gene from the triple-reassortant (TR) lineage. The 431# strain was also a TR, except its M-gene was derived from the original EA H1N1 lineage. The pathogenicity of two 431# strains and one typical 521# strain was evaluated in mice, and the 431# strain exhibited higher pathogenicity. Therefore, a new 521# strain was selected for vaccine production because it is the current circulating strain. The vaccine produced using the 521# strain and pre-evaluated adjuvants was effective against the homologous H05 strain, as evidenced by the normal body temperature of vaccinated pigs and low virus titer of nasal swabs. In contrast, infection with the H05 strain significantly increased the body temperature of unvaccinated pigs and increased the virus titer of nasal swabs. Notably, vaccination with the 521#-based vaccine conferred some level of protection against the heterologous B15 strain (H3N2 subtype), thus reducing the viral load in pigs.
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Affiliation(s)
- Ying Yang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; Wuhan Keqian Biological Co. Ltd., Wuhan 430200, China; Hubei Jiangxia Laboratory, Wuhan 430200, China
| | - Yunfu Huang
- Wuhan Keqian Biological Co. Ltd., Wuhan 430200, China
| | - Kun Huang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yufei Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaotong Hu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
| | - Weihua Zou
- Wuhan Keqian Biological Co. Ltd., Wuhan 430200, China
| | - Chao Wu
- Wuhan Keqian Biological Co. Ltd., Wuhan 430200, China
| | - Xianfeng Hui
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
| | - Chengfei Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
| | - Ya Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaomei Sun
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhong Zou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; Wuhan Keqian Biological Co. Ltd., Wuhan 430200, China; Hubei Jiangxia Laboratory, Wuhan 430200, China.
| | - Meilin Jin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; Wuhan Keqian Biological Co. Ltd., Wuhan 430200, China; Hubei Jiangxia Laboratory, Wuhan 430200, China.
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7
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Yang YR, Han J, Perrett HR, Richey ST, Jackson AM, Rodriguez AJ, Gillespie RA, O’Connell S, Raab JE, Cominsky LY, Chopde A, Kanekiyo M, Houser KV, Chen GL, McDermott AB, Andrews SF, Ward AB. Immune memory shapes human polyclonal antibody responses to H2N2 vaccination. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.23.554525. [PMID: 37781590 PMCID: PMC10541104 DOI: 10.1101/2023.08.23.554525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Influenza A virus subtype H2N2, which caused the 1957 influenza pandemic, remains a global threat. A recent phase I clinical trial investigating a ferritin nanoparticle displaying H2 hemagglutinin in H2-naïve and H2-exposed adults. Therefore, we could perform comprehensive structural and biochemical characterization of immune memory on the breadth and diversity of the polyclonal serum antibody response elicited after H2 vaccination. We temporally map the epitopes targeted by serum antibodies after first and second vaccinations and show previous H2 exposure results in higher responses to the variable head domain of hemagglutinin while initial responses in H2-naïve participants are dominated by antibodies targeting conserved epitopes. We use cryo-EM and monoclonal B cell isolation to describe the molecular details of cross-reactive antibodies targeting conserved epitopes on the hemagglutinin head including the receptor binding site and a new site of vulnerability deemed the medial junction. Our findings accentuate the impact of pre-existing influenza exposure on serum antibody responses.
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Affiliation(s)
- Yuhe R. Yang
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, 92037, USA
- Chinese Academy of Sciences Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Julianna Han
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Hailee R. Perrett
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Sara T. Richey
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Abigail M. Jackson
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Alesandra J. Rodriguez
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Rebecca A. Gillespie
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Sarah O’Connell
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Julie E. Raab
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Lauren Y. Cominsky
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Ankita Chopde
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Masaru Kanekiyo
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Katherine V. Houser
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Grace L. Chen
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Adrian B. McDermott
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Sarah F. Andrews
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20902, USA
| | - Andrew B. Ward
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, 92037, USA
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8
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Abdelwhab EM, Mettenleiter TC. Zoonotic Animal Influenza Virus and Potential Mixing Vessel Hosts. Viruses 2023; 15:980. [PMID: 37112960 PMCID: PMC10145017 DOI: 10.3390/v15040980] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/05/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
Influenza viruses belong to the family Orthomyxoviridae with a negative-sense, single-stranded segmented RNA genome. They infect a wide range of animals, including humans. From 1918 to 2009, there were four influenza pandemics, which caused millions of casualties. Frequent spillover of animal influenza viruses to humans with or without intermediate hosts poses a serious zoonotic and pandemic threat. The current SARS-CoV-2 pandemic overshadowed the high risk raised by animal influenza viruses, but highlighted the role of wildlife as a reservoir for pandemic viruses. In this review, we summarize the occurrence of animal influenza virus in humans and describe potential mixing vessel or intermediate hosts for zoonotic influenza viruses. While several animal influenza viruses possess a high zoonotic risk (e.g., avian and swine influenza viruses), others are of low to negligible zoonotic potential (e.g., equine, canine, bat and bovine influenza viruses). Transmission can occur directly from animals, particularly poultry and swine, to humans or through reassortant viruses in "mixing vessel" hosts. To date, there are less than 3000 confirmed human infections with avian-origin viruses and less than 7000 subclinical infections documented. Likewise, only a few hundreds of confirmed human cases caused by swine influenza viruses have been reported. Pigs are the historic mixing vessel host for the generation of zoonotic influenza viruses due to the expression of both avian-type and human-type receptors. Nevertheless, there are a number of hosts which carry both types of receptors and can act as a potential mixing vessel host. High vigilance is warranted to prevent the next pandemic caused by animal influenza viruses.
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Affiliation(s)
- Elsayed M. Abdelwhab
- Institute of Molecular Virology and Cell Biology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, 17493 Greifswald-Insel Riems, Germany
| | - Thomas C. Mettenleiter
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, 17493 Greifswald-Insel Riems, Germany
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9
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The impact of COVID-19 on the economic performance of Wuhan, China (2019-2021). QUALITY & QUANTITY 2023; 57:847-862. [PMID: 35431342 PMCID: PMC8999993 DOI: 10.1007/s11135-022-01392-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 03/24/2022] [Indexed: 02/03/2023]
Abstract
This paper attempts to evaluate the impact of massive infectious and contagious diseases and its final impact on the economic performance anywhere and anytime. We are considering to evaluate the case of Wuhan, China. We are taking in consideration the case of COVID-19 to be evaluated under a domestic, national, and international level impact. In this paper, we also propose a new simulator to evaluate the impact of massive infections and contagious diseases on the economic performance subsequently. This simulator is entitled "The Impact of Pandemics on the Economic Performance Simulator (IPEP-Simulator)" Hence, this simulator tries to show a macro and micro analysis with different possible scenarios simultaneously. Finally, the IPEP-Simulator was applied to the case of Wuhan-China respectively.
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10
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Alhabbab RY. Lateral Flow Immunoassays for Detecting Viral Infectious Antigens and Antibodies. MICROMACHINES 2022; 13:1901. [PMID: 36363922 PMCID: PMC9694796 DOI: 10.3390/mi13111901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/14/2022] [Accepted: 10/19/2022] [Indexed: 05/28/2023]
Abstract
Abundant immunological assays currently exist for detecting pathogens and identifying infected individuals, making detection of diseases at early stages integral to preventing their spread, together with the consequent emergence of global health crises. Lateral flow immunoassay (LFIA) is a test characterized by simplicity, low cost, and quick results. Furthermore, LFIA testing does not need well-trained individuals or laboratory settings. Therefore, it has been serving as an attractive tool that has been extensively used during the ongoing COVID-19 pandemic. Here, the LFIA strip's available formats, reporter systems, components, and preparation are discussed. Moreover, this review provides an overview of the current LFIAs in detecting infectious viral antigens and humoral responses to viral infections.
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Affiliation(s)
- Rowa Y. Alhabbab
- Vaccines and Immunotherapy Unit, King Fahad Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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11
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Williams BJM, Ogbunugafor CB, Althouse BM, Hébert-Dufresne L. Immunity-induced criticality of the genotype network of influenza A (H3N2) hemagglutinin. PNAS NEXUS 2022; 1:pgac143. [PMID: 36060623 PMCID: PMC9434636 DOI: 10.1093/pnasnexus/pgac143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 07/22/2022] [Indexed: 11/17/2022]
Abstract
Seasonal influenza kills hundreds of thousands every year, with multiple constantly changing strains in circulation at any given time. A high mutation rate enables the influenza virus to evade recognition by the human immune system, including immunity acquired through past infection and vaccination. Here, we capture the genetic similarity of influenza strains and their evolutionary dynamics with genotype networks. We show that the genotype networks of influenza A (H3N2) hemagglutinin are characterized by heavy-tailed distributions of module sizes and connectivity indicative of critical behavior. We argue that (i) genotype networks are driven by mutation and host immunity to explore a subspace of networks predictable in structure and (ii) genotype networks provide an underlying structure necessary to capture the rich dynamics of multistrain epidemic models. In particular, inclusion of strain-transcending immunity in epidemic models is dependent upon the structure of an underlying genotype network. This interplay is consistent with self-organized criticality where the epidemic dynamics of influenza locates critical regions of its genotype network. We conclude that this interplay between disease dynamics and network structure might be key for future network analysis of pathogen evolution and realistic multistrain epidemic models.
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Affiliation(s)
- Blake J M Williams
- Vermont Complex Systems Center, University of Vermont , Burlington, VT 05405, USA
| | - C Brandon Ogbunugafor
- Vermont Complex Systems Center, University of Vermont , Burlington, VT 05405, USA
- Department of Ecology and Evolutionary Biology, Yale University , New Haven, CT 06511, USA
- Santa Fe Institute , Santa Fe, NM 87501, USA
- Public Health Modeling Unit, Yale School of Public Health , New Haven, CT 06510, USA
| | - Benjamin M Althouse
- Institute for Disease Modeling, Global Health, Bill & Melinda Gates Foundation , Seattle, WA 98109, USA
- Information School, University of Washington , Seattle, WA 98195, USA
- Department of Biology, New Mexico State University , Las Cruces, NM 88003, USA
| | - Laurent Hébert-Dufresne
- Vermont Complex Systems Center, University of Vermont , Burlington, VT 05405, USA
- Department of Computer Science, University of Vermont , Burlington VT 05405, USA
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12
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Barrat-Charlaix P, Vaughan TG, Neher RA. TreeKnit: Inferring ancestral reassortment graphs of influenza viruses. PLoS Comput Biol 2022; 18:e1010394. [PMID: 35984845 PMCID: PMC9447925 DOI: 10.1371/journal.pcbi.1010394] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 09/06/2022] [Accepted: 07/15/2022] [Indexed: 11/28/2022] Open
Abstract
When two influenza viruses co-infect the same cell, they can exchange genome segments in a process known as reassortment. Reassortment is an important source of genetic diversity and is known to have been involved in the emergence of most pandemic influenza strains. However, because of the difficulty in identifying reassortment events from viral sequence data, little is known about their role in the evolution of the seasonal influenza viruses. Here we introduce TreeKnit, a method that infers ancestral reassortment graphs (ARG) from two segment trees. It is based on topological differences between trees, and proceeds in a greedy fashion by finding regions that are compatible in the two trees. Using simulated genealogies with reassortments, we show that TreeKnit performs well in a wide range of settings and that it is as accurate as a more principled bayesian method, while being orders of magnitude faster. Finally, we show that it is possible to use the inferred ARG to better resolve segment trees and to construct more informative visualizations of reassortments. Influenza viruses evolve quickly and escape immune defenses which requires frequent update of vaccines. Understanding this evolution is key to an effective public health response. The genome of influenza viruses is made up of 8 pieces called segments, each coding for different viral proteins. Within each segment, evolution is an asexual process in which genetic diversity is generated by mutations. But influenza also diversifies through reassortment which can occur when two different viruses infect the same cell: offsprings can then contain a combination of segments from both viruses. Reassortment is akin to sexual reproduction and can generate viruses that combine segments from diverged viral lineages. Reassortment is a crucial component of viral evolution, but it is challenging to reconstruct where reassortments happened and which segments share history. Here, we develop a method called TreeKnit to detect reassortment events. TreeKnit is based on genealogical trees of single segments that can be reconstructed using standard bioinformatics tools. Inconsistencies between these trees are then used as signs of reassortment. We show that TreeKnit is as accurate as other recent methods, but runs much faster. Our method will facilitate the study of reassortment and its consequences for influenza evolution.
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Affiliation(s)
- Pierre Barrat-Charlaix
- Biozentrum, Universität Basel, Basel, Switzerland
- Swiss Institute of Bioinformatics, Basel, Switzerland
| | - Timothy G. Vaughan
- Swiss Institute of Bioinformatics, Basel, Switzerland
- ETH Zurich, Department of Biosystems Science and Engineering, Basel, Switzerland
| | - Richard A. Neher
- Biozentrum, Universität Basel, Basel, Switzerland
- Swiss Institute of Bioinformatics, Basel, Switzerland
- * E-mail:
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13
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Lee YCJ, Shirkey JD, Park J, Bisht K, Cowan AJ. An Overview of Antiviral Peptides and Rational Biodesign Considerations. BIODESIGN RESEARCH 2022; 2022:9898241. [PMID: 37850133 PMCID: PMC10521750 DOI: 10.34133/2022/9898241] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/04/2022] [Indexed: 10/19/2023] Open
Abstract
Viral diseases have contributed significantly to worldwide morbidity and mortality throughout history. Despite the existence of therapeutic treatments for many viral infections, antiviral resistance and the threat posed by novel viruses highlight the need for an increased number of effective therapeutics. In addition to small molecule drugs and biologics, antimicrobial peptides (AMPs) represent an emerging class of potential antiviral therapeutics. While AMPs have traditionally been regarded in the context of their antibacterial activities, many AMPs are now known to be antiviral. These antiviral peptides (AVPs) have been shown to target and perturb viral membrane envelopes and inhibit various stages of the viral life cycle, from preattachment inhibition through viral release from infected host cells. Rational design of AMPs has also proven effective in identifying highly active and specific peptides and can aid in the discovery of lead peptides with high therapeutic selectivity. In this review, we highlight AVPs with strong antiviral activity largely curated from a publicly available AMP database. We then compile the sequences present in our AVP database to generate structural predictions of generic AVP motifs. Finally, we cover the rational design approaches available for AVPs taking into account approaches currently used for the rational design of AMPs.
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Affiliation(s)
- Ying-Chiang J. Lee
- Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA
| | - Jaden D. Shirkey
- Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA
| | - Jongbeom Park
- Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA
| | - Karishma Bisht
- Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA
| | - Alexis J. Cowan
- Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA
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14
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McLean RK, Graham SP. The pig as an amplifying host for new and emerging zoonotic viruses. One Health 2022; 14:100384. [PMID: 35392655 PMCID: PMC8975596 DOI: 10.1016/j.onehlt.2022.100384] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/28/2022] [Accepted: 03/29/2022] [Indexed: 12/23/2022] Open
Abstract
Pig production is a rapidly growing segment of the global livestock sector, especially in Asia and Africa. Expansion and intensification of pig production has resulted in significant changes to traditional pig husbandry practices leading to an environment conducive to increased emergence and spread of infectious diseases. These include a number of zoonotic viruses including influenza, Japanese encephalitis, Nipah and coronaviruses. Pigs are known to independently facilitate the creation of novel reassortant influenza A virus strains, capable of causing pandemics. Moreover, pigs play a role in the amplification of Japanese encephalitis virus, transmitted by mosquito vectors found in areas inhabited by over half the world's human population. Furthermore, pigs acted as an amplifying host in the first and still most severe outbreak of Nipah virus in Malaysia, that necessitated the culling over 1 million pigs. Finally, novel porcine coronaviruses are being discovered in high pig-density countries which have pandemic potential. In this review, we discuss the role that pigs play as intermediate/amplifying hosts for zoonotic viruses with pandemic potential and consider how multivalent vaccination of pigs could in turn safeguard human health.
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15
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Abstract
The continuous emergence and reemergence of diverse subtypes of influenza A viruses, which are known as "HxNy" and are mediated through the reassortment of viral genomes, account for seasonal epidemics, occasional pandemics, and zoonotic outbreaks. We summarize and discuss the characteristics of historic human pandemic HxNy viruses and diverse subtypes of HxNy among wild birds, mammals, and live poultry markets. In addition, we summarize the key molecular features of emerging infectious HxNy influenza viruses from the perspectives of the receptor binding of Hx, the inhibitor-binding specificities and drug-resistance features of Ny, and the matching of the gene segments. Our work enhances our understanding of the potential threats of novel reassortant influenza viruses to public health and provides recommendations for effective prevention, control, and research of this pathogen.
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Affiliation(s)
- William J Liu
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), Beijing 102206, China
| | - Yan Wu
- Department of Pathogen Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Yuhai Bi
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, Institute of Microbiology, Center for Influenza Research and Early-warning (CASCIRE), Chinese Academy of Sciences (CAS), Beijing 100101, China
| | - Weifeng Shi
- Shandong First Medical University and Shandong Academy of Medical Sciences, Tai'an 271016, China
| | - Dayan Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), Beijing 102206, China
| | - Yi Shi
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, Institute of Microbiology, Center for Influenza Research and Early-warning (CASCIRE), Chinese Academy of Sciences (CAS), Beijing 100101, China
| | - George F Gao
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), Beijing 102206, China
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, Institute of Microbiology, Center for Influenza Research and Early-warning (CASCIRE), Chinese Academy of Sciences (CAS), Beijing 100101, China
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16
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Ma Y, Wang Y, Dong C, Gonzalez GX, Song Y, Zhu W, Kim J, Wei L, Wang BZ. Influenza NP core and HA or M2e shell double-layered protein nanoparticles induce broad protection against divergent influenza A viruses. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2022; 40:102479. [PMID: 34743020 PMCID: PMC8897236 DOI: 10.1016/j.nano.2021.102479] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 08/23/2021] [Accepted: 10/25/2021] [Indexed: 02/03/2023]
Abstract
Influenza viral infection causes acute upper respiratory diseases in humans, posing severe risks to global public health. However, current vaccines provide limited protection against mismatched circulating influenza A viruses. Here, the immune responses induced in mice by novel double-layered protein nanoparticles were investigated. The nanoparticles were composed of influenza nucleoprotein (NP) cores and hemagglutinin (HA) or matrix 2 protein ectodomain (M2e) shells. Vaccination with the nanoparticles significantly enhanced M2e-specific serum antibody titers and concomitant ADCC responses. Robust NP-specific T cell responses and robust HA neutralization were also detected. Moreover, vaccination with a trivalent nanoparticle combination containing two routinely circulated HA, conserved M2e, and NP reduced lung virus titers, pulmonary pathologies, and weight loss after homologous virus challenge. This combination also improved survival rates against heterologous and heterosubtypic influenza virus challenges. Our results demonstrate that the trivalent combination elicited potent and long-lasting immune responses conferring influenza viral cross-protection.
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Affiliation(s)
- Yao Ma
- Center for Inflammation, Immunity & Infection, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, USA.
| | - Ye Wang
- Center for Inflammation, Immunity & Infection, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, USA.
| | - Chunhong Dong
- Center for Inflammation, Immunity & Infection, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, USA.
| | - Gilbert X Gonzalez
- Center for Inflammation, Immunity & Infection, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, USA.
| | - Yufeng Song
- Center for Inflammation, Immunity & Infection, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, USA.
| | - Wandi Zhu
- Center for Inflammation, Immunity & Infection, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, USA.
| | - Joo Kim
- Center for Inflammation, Immunity & Infection, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, USA.
| | - Lai Wei
- Center for Inflammation, Immunity & Infection, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, USA.
| | - Bao-Zhong Wang
- Center for Inflammation, Immunity & Infection, Georgia State University Institute for Biomedical Sciences, Atlanta, GA, USA.
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17
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Dronina J, Samukaite-Bubniene U, Ramanavicius A. Advances and insights in the diagnosis of viral infections. J Nanobiotechnology 2021; 19:348. [PMID: 34717656 PMCID: PMC8556785 DOI: 10.1186/s12951-021-01081-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 10/11/2021] [Indexed: 12/15/2022] Open
Abstract
Viral infections are the most common among diseases that globally require around 60 percent of medical care. However, in the heat of the pandemic, there was a lack of medical equipment and inpatient facilities to provide all patients with viral infections. The detection of viral infections is possible in three general ways such as (i) direct virus detection, which is performed immediately 1-3 days after the infection, (ii) determination of antibodies against some virus proteins mainly observed during/after virus incubation period, (iii) detection of virus-induced disease when specific tissue changes in the organism. This review surveys some global pandemics from 1889 to 2020, virus types, which induced these pandemics, and symptoms of some viral diseases. Non-analytical methods such as radiology and microscopy also are overviewed. This review overlooks molecular analysis methods such as nucleic acid amplification, antibody-antigen complex determination, CRISPR-Cas system-based viral genome determination methods. Methods widely used in the certificated diagnostic laboratory for SARS-CoV-2, Influenza A, B, C, HIV, and other viruses during a viral pandemic are outlined. A comprehensive overview of molecular analytical methods has shown that the assay's sensitivity, accuracy, and suitability for virus detection depends on the choice of the number of regions in the viral open reading frame (ORF) genome sequence and the validity of the selected analytical method.
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Affiliation(s)
- Julija Dronina
- Laboratory of Nanotechnology, Department of Functional Materials and Electronics, Center for Physical Sciences and Technology, Sauletekio av. 3, Vilnius, Lithuania
- Department of Physical Chemistry, Faculty of Chemistry and Geoscience, Vilnius University, Naugarduko str. 24, 03225, Vilnius, Lithuania
| | - Urte Samukaite-Bubniene
- Department of Physical Chemistry, Faculty of Chemistry and Geoscience, Vilnius University, Naugarduko str. 24, 03225, Vilnius, Lithuania
| | - Arunas Ramanavicius
- Department of Physical Chemistry, Faculty of Chemistry and Geoscience, Vilnius University, Naugarduko str. 24, 03225, Vilnius, Lithuania.
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18
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Evseev D, Magor KE. Molecular Evolution of the Influenza A Virus Non-structural Protein 1 in Interspecies Transmission and Adaptation. Front Microbiol 2021; 12:693204. [PMID: 34671321 PMCID: PMC8521145 DOI: 10.3389/fmicb.2021.693204] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 09/06/2021] [Indexed: 12/03/2022] Open
Abstract
The non-structural protein 1 (NS1) of influenza A viruses plays important roles in viral fitness and in the process of interspecies adaptation. It is one of the most polymorphic and mutation-tolerant proteins of the influenza A genome, but its evolutionary patterns in different host species and the selective pressures that underlie them are hard to define. In this review, we highlight some of the species-specific molecular signatures apparent in different NS1 proteins and discuss two functions of NS1 in the process of viral adaptation to new host species. First, we consider the ability of NS1 proteins to broadly suppress host protein expression through interaction with CPSF4. This NS1 function can be spontaneously lost and regained through mutation and must be balanced against the need for host co-factors to aid efficient viral replication. Evidence suggests that this function of NS1 may be selectively lost in the initial stages of viral adaptation to some new host species. Second, we explore the ability of NS1 proteins to inhibit antiviral interferon signaling, an essential function for viral replication without which the virus is severely attenuated in any host. Innate immune suppression by NS1 not only enables viral replication in tissues, but also dampens the adaptive immune response and immunological memory. NS1 proteins suppress interferon signaling and effector functions through a variety of protein-protein interactions that may differ from host to host but must achieve similar goals. The multifunctional influenza A virus NS1 protein is highly plastic, highly versatile, and demonstrates a diversity of context-dependent solutions to the problem of interspecies adaptation.
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Affiliation(s)
| | - Katharine E. Magor
- Department of Biological Sciences, Li Ka Shing Institute of Virology, University of Alberta, Edmonton, AB, Canada
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19
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West J, Röder J, Matrosovich T, Beicht J, Baumann J, Mounogou Kouassi N, Doedt J, Bovin N, Zamperin G, Gastaldelli M, Salviato A, Bonfante F, Kosakovsky Pond S, Herfst S, Fouchier R, Wilhelm J, Klenk HD, Matrosovich M. Characterization of changes in the hemagglutinin that accompanied the emergence of H3N2/1968 pandemic influenza viruses. PLoS Pathog 2021; 17:e1009566. [PMID: 34555124 PMCID: PMC8491938 DOI: 10.1371/journal.ppat.1009566] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 10/05/2021] [Accepted: 09/04/2021] [Indexed: 12/12/2022] Open
Abstract
The hemagglutinin (HA) of A/H3N2 pandemic influenza viruses (IAVs) of 1968 differed from its inferred avian precursor by eight amino acid substitutions. To determine their phenotypic effects, we studied recombinant variants of A/Hong Kong/1/1968 virus containing either human-type or avian-type amino acids in the corresponding positions of HA. The precursor HA displayed receptor binding profile and high conformational stability typical for duck IAVs. Substitutions Q226L and G228S, in addition to their known effects on receptor specificity and replication, marginally decreased HA stability. Substitutions R62I, D63N, D81N and N193S reduced HA binding avidity. Substitutions R62I, D81N and A144G promoted viral replication in human airway epithelial cultures. Analysis of HA sequences revealed that substitutions D63N and D81N accompanied by the addition of N-glycans represent common markers of avian H3 HA adaptation to mammals. Our results advance understanding of genotypic and phenotypic changes in IAV HA required for avian-to-human adaptation and pandemic emergence.
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Affiliation(s)
- Johanna West
- Institute of Virology, Philipps University, Marburg, Germany
| | - Juliane Röder
- Institute of Virology, Philipps University, Marburg, Germany
| | | | - Jana Beicht
- Institute of Virology, Philipps University, Marburg, Germany
| | - Jan Baumann
- Institute of Virology, Philipps University, Marburg, Germany
| | | | - Jennifer Doedt
- Institute of Virology, Philipps University, Marburg, Germany
| | - Nicolai Bovin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - Gianpiero Zamperin
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Michele Gastaldelli
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Annalisa Salviato
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Francesco Bonfante
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Sergei Kosakovsky Pond
- Institute for Genomics and Evolutionary Medicine, Temple University, Philadelphia, Pennsylvania, United States of America
| | - Sander Herfst
- Department of Viroscience, Erasmus Medical Centre, Rotterdam, Netherlands
| | - Ron Fouchier
- Department of Viroscience, Erasmus Medical Centre, Rotterdam, Netherlands
| | - Jochen Wilhelm
- Institute of Lung Health (ILH), Universities of Giessen and Marburg Lung Center (UGMLC), Giessen, Germany
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20
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Seshimo E, Momose F, Morikawa Y. Identification of the 5'-Terminal Packaging Signal of the H1N1 Influenza A Virus Neuraminidase Segment at Single-Nucleotide Resolution. Front Microbiol 2021; 12:709010. [PMID: 34456891 PMCID: PMC8385638 DOI: 10.3389/fmicb.2021.709010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/20/2021] [Indexed: 02/05/2023] Open
Abstract
The genome of the influenza A virus is an eight-segmented negative-strand RNA (vRNA). Progeny vRNAs replicated in the nucleus selectively assemble into a single set of eight different segments, probably in the cytoplasm, and are packaged into progeny virions at the cell membrane. In these processes, a region of approximately 100 nucleotides at both ends of each segment is thought to function as a selective assembly/packaging signal; however, the details of the mechanism, such as the required sequences, are still unknown. In this study, we focused on the 5'-terminus of the sixth neuraminidase gene segment vRNA (Seg.6) to identify the essential sequence for selective packaging. The 5'-terminal region of the A/Puerto Rico/8/34 strain Seg.6 was divided into seven regions of 15 nucleotides each from A to G, and mutations were introduced into each region by complementary base substitutions or synonymous codon substitutions. Mutant viruses were generated and compared for infectious titers, and the relative ratios of the eight segments packaged into virions were measured. We also ascertained whether mutant vRNA was eliminated by competitive packaging with wild-type vRNA. Mutations in the A-C regions reduced infectious titers and eliminated mutant vRNAs by competition with wild-type vRNA. Even under non-competitive conditions, the packaging efficiency of the A or B region mutant Seg.6 was reduced. Next, we designed an artificial vRNA with a 50-nucleotide duplication at the 5'-terminal region. Using this, a virus library was created by randomly replacing each region, which became an untranslated region (UTR), with complementary bases. After selecting proliferative viruses from the library, nine wild-type nucleotides in the A and B regions were identified as essential bases, and we found that these bases were highly conserved in Seg.6 vRNAs encoding the N1 subtype neuraminidase. From these results, we conclude that the identified bases function as the 5'-terminal packaging signal for the N1 subtype Seg.6 vRNA.
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Affiliation(s)
- Erika Seshimo
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Fumitaka Momose
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Yuko Morikawa
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
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21
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Tan MP, Tan WS, Mohamed Alitheen NB, Yap WB. M2e-Based Influenza Vaccines with Nucleoprotein: A Review. Vaccines (Basel) 2021; 9:739. [PMID: 34358155 PMCID: PMC8310010 DOI: 10.3390/vaccines9070739] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 11/29/2022] Open
Abstract
Discovery of conserved antigens for universal influenza vaccines warrants solutions to a number of concerns pertinent to the currently licensed influenza vaccines, such as annual reformulation and mismatching with the circulating subtypes. The latter causes low vaccine efficacies, and hence leads to severe disease complications and high hospitalization rates among susceptible and immunocompromised individuals. A universal influenza vaccine ensures cross-protection against all influenza subtypes due to the presence of conserved epitopes that are found in the majority of, if not all, influenza types and subtypes, e.g., influenza matrix protein 2 ectodomain (M2e) and nucleoprotein (NP). Despite its relatively low immunogenicity, influenza M2e has been proven to induce humoral responses in human recipients. Influenza NP, on the other hand, promotes remarkable anti-influenza T-cell responses. Additionally, NP subunits are able to assemble into particles which can be further exploited as an adjuvant carrier for M2e peptide. Practically, the T-cell immunodominance of NP can be transferred to M2e when it is fused and expressed as a chimeric protein in heterologous hosts such as Escherichia coli without compromising the antigenicity. Given the ability of NP-M2e fusion protein in inducing cross-protective anti-influenza cell-mediated and humoral immunity, its potential as a universal influenza vaccine is therefore worth further exploration.
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Affiliation(s)
- Mei Peng Tan
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (M.P.T.); (N.B.M.A.)
- Center for Toxicology and Health Risk Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Wen Siang Tan
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia;
- Laboratory of Vaccine and Biomolecules, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Noorjahan Banu Mohamed Alitheen
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (M.P.T.); (N.B.M.A.)
| | - Wei Boon Yap
- Center for Toxicology and Health Risk Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
- Biomedical Science Program, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
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22
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Yu Y, Wu M, Cui X, Xu F, Wen F, Pan L, Li S, Sun H, Zhu X, Lin J, Feng Y, Li M, Liu Y, Yuan S, Liao M, Sun H. Pathogenicity and transmissibility of current H3N2 swine influenza virus in Southern China: A zoonotic potential. Transbound Emerg Dis 2021; 69:2052-2064. [PMID: 34132051 DOI: 10.1111/tbed.14190] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/12/2021] [Accepted: 06/12/2021] [Indexed: 11/27/2022]
Abstract
Swine are considered as 'mixing vessels' of influenza A viruses and play an important role in the generation of novel influenza pandemics. In this study, we described that the H3N2 swine influenza (swH3N2) viruses currently circulating in pigs in Guangdong province carried six internal genes from 2009 pandemic H1N1 virus (pmd09), and their antigenicity was obviously different from that of current human H3N2 influenza viruses or recommended vaccine strains (A/Guangdong/1194/2019, A/Hong Kong/4801/2014). These swH3N2 viruses preferentially bonded to the human-like receptors, and efficiently replicated in human, canine and swine cells. In addition, the virus replicated in turbinate and trachea of guinea pigs, and efficiently transmitted among guinea pigs, and virus shedding last for 6 days post-infection (dpi). The virus replicated in the respiratory tract of pigs, effectively transmitted among pigs, and virus shedding last until 9 dpi. Taken together, these current swH3N2 viruses might have the zoonotic potential. Strengthening surveillance and monitoring the pathogenicity of such swH3N2 viruses are urgently needed.
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Affiliation(s)
- Yanan Yu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
| | - Meihua Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
| | - Xinxin Cui
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
| | - Fengxiang Xu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
| | - Feng Wen
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong, China
| | - Liangqi Pan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
| | - Shuo Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
| | - Huapeng Sun
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
| | - Xuhui Zhu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
| | - Jiate Lin
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
| | - Yaling Feng
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
| | - Mingliang Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
| | - Yang Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
| | - Shaohua Yuan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
| | - Ming Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
| | - Hailiang Sun
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China.,Key Laboratory of Zoonosis Control and Prevention of Guangdong Province, Guangzhou, China
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23
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Chua KH, Mohamed IN, Mohd Yunus MH, Shafinaz Md Nor N, Kamil K, Ugusman A, Kumar J. The Anti-Viral and Anti-Inflammatory Properties of Edible Bird's Nest in Influenza and Coronavirus Infections: From Pre-Clinical to Potential Clinical Application. Front Pharmacol 2021; 12:633292. [PMID: 34025406 PMCID: PMC8138174 DOI: 10.3389/fphar.2021.633292] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 04/26/2021] [Indexed: 12/23/2022] Open
Abstract
Edible bird's nest (BN) is a Chinese traditional medicine with innumerable health benefits, including anti-viral, anti-inflammatory, neuroprotective, and immunomodulatory effects. A small number of studies have reported the anti-viral effects of EBN against influenza infections using in vitro and in vivo models, highlighting the importance of sialic acid and thymol derivatives in their therapeutic effects. At present, studies have reported that EBN suppresses the replicated virus from exiting the host cells, reduces the viral replication, endosomal trafficking of the virus, intracellular viral autophagy process, secretion of pro-inflammatory cytokines, reorient the actin cytoskeleton of the infected cells, and increase the lysosomal degradation of viral materials. In other models of disease, EBN attenuates oxidative stress-induced cellular apoptosis, enhances proliferation and activation of B-cells and their antibody secretion. Given the sum of its therapeutic actions, EBN appears to be a candidate that is worth further exploring for its protective effects against diseases transmitted through air droplets. At present, anti-viral drugs are employed as the first-line defense against respiratory viral infections, unless vaccines are available for the specific pathogens. In patients with severe symptoms due to exacerbated cytokine secretion, anti-inflammatory agents are applied. Treatment efficacy varies across the patients, and in times of a pandemic like COVID-19, many of the drugs are still at the experimental stage. In this review, we present a comprehensive overview of anti-viral and anti-inflammatory effects of EBN, chemical constituents from various EBN preparation techniques, and drugs currently used to treat influenza and novel coronavirus infections. We also aim to review the pathogenesis of influenza A and coronavirus, and the potential of EBN in their clinical application. We also describe the current literature in human consumption of EBN, known allergenic or contaminant presence, and the focus of future direction on how these can be addressed to further improve EBN for potential clinical application.
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Affiliation(s)
- Kien Hui Chua
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
| | - Isa Naina Mohamed
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
| | - Mohd Heikal Mohd Yunus
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
| | - Norefrina Shafinaz Md Nor
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
| | - Khidhir Kamil
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
| | - Azizah Ugusman
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
| | - Jaya Kumar
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
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24
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Solomon S, Rostellato D, Testoni I, Calabrese F, Biasco G. Journalistic Denial of Death during the Very First Traumatic Period of the Italian COVID-19 Pandemic. Behav Sci (Basel) 2021; 11:41. [PMID: 33806901 PMCID: PMC8004840 DOI: 10.3390/bs11030041] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/18/2021] [Accepted: 03/20/2021] [Indexed: 01/26/2023] Open
Abstract
Exactly one year ago, between February and March 2020, the COVID-19 infection went from an epidemic confined to China to a worldwide pandemic that was particularly lethal in Italy. This study examined the media accounts during that period by analysing the representation of death-related constructs in Corriere della Sera, the most widely read newspaper in Italy. A textual and thematic analysis of articles published between period A (epidemic: 23 January-22 February 2020) and period B (pandemic: 23 February-31 March 2020) was conducted using Nvivo-11. A total of 141 articles comprising 48,524 words were collected. The most utilised words and meanings linked to COVID-19 were computed. In the rank distribution, 'China' and 'virus' were the terms most frequently used in both periods. The terms 'death' and 'dead' were completely absent in period A and appeared in the 535th position in period B. The term 'dead' was used primarily to indicate the number of deceased. From a Terror Management Theory perspective, it is possible that the minimal reference to death-related issues was a reflection of death denial and a manifestation of efforts to deny death to manage terror. These findings highlight the ambiguities and ambivalence surrounding any issue pertaining to death; on the one side, undue alarmism may provoke exaggerated reactions, such as moral panic, while on the other denial-based messages that minimise references to mortality may reduce safe behaviour during a pandemic.
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Affiliation(s)
- Sheldon Solomon
- Psychology Department, Skidmore College, Saratoga Springs, NY 12866, USA;
| | - Daniele Rostellato
- Department of Philosophy, Sociology, Pedagogy and Applied psychology (FISPPA), University of Padova, 35131 Padova, Italy;
| | - Ines Testoni
- Department of Philosophy, Sociology, Pedagogy and Applied psychology (FISPPA), University of Padova, 35131 Padova, Italy;
| | - Fiorella Calabrese
- Department of Cardiac, Thoracic, Vascular Science (DCTV), University of Padova, 35128 Padova, Italy;
| | - Guido Biasco
- Department of Specialistic, Diagnostic and Experimental Medicine (DIMES), University of Bologna, 40126 Bologna, Italy;
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25
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Baroni F, Mancini D, Tuscano SC, Scarlata S, Lunghi C, Cerritelli F, Haxton J. Osteopathic manipulative treatment and the Spanish flu: a historical literature review. J Osteopath Med 2021; 121:181-190. [PMID: 33567081 DOI: 10.1515/jom-2020-0112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Context The Spanish flu pandemic of 1918 was approached with a variety of management techniques available at that time, including osteopathic care in addition to standard medical care. Objective To analyze the osteopathic manipulative treatment (OMT) techniques used for the management of patients affected by the Spanish flu according to four themes: the principles and procedures used, frequency and length of OMT, reported side effects, and advice for patients. Methods A structured review of the literature was performed by hand-searching texts at the Museum of Osteopathic Medicine International Center for Osteopathic History in Kirksville, Missouri, and online via PubMed (National Library of Medicine), ScienceDirect (Elsevier), and Google Scholar (Google, Inc). The literature search was carried out between February and March 2020. Three keywords were selected from the medical subject headings database of the National Library of Medicine: manipulation, osteopathic; influenza pandemic, 1918-1919; epidemics. Articles were then reviewed for relevance by screening for articles published between 1900 and 1940 that contained at least 1 of the following keywords in their title: Spanish influenza, flu, epidemic, grippe, pneumonia, or osteopathic management/treatment. All articles that provided information about OMT and advice met the inclusion criteria. Articles that did not report descriptions of manipulative intervention were excluded. Results Our search yielded 63 articles: 23 from the hand-search and 40 from the electronic search. No electronic source was selected for the review because none met inclusion criteria. A total of 16 articles from the hand-searched set met inclusion criteria and were analyzed according to the four main themes stated in the objective. The range of OMT approaches reported to be administered to patients with Spanish flu suggests that early osteopathic physicians treated patients with this disease using OMT in addition to offering advice on healthy lifestyle behaviors. Conclusion Conclusions from this study are limited by the historical and descriptive nature of the data gathered, which lacked the rigor of modern-day scientific studies. However, this review could lead to future research inquiries on the effectiveness of these approaches. Osteopathic physicians and osteopaths should embrace their historical osteopathic heritage by continuing the work of our predecessors and combining their hands-on experience and osteopathic principles with modern medical treatment and rigorous scientific standards.
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Affiliation(s)
- Francesca Baroni
- Clinical-Based Human Research Department , C.O.M.E. Collaboration ONLUS , Pescara , Italy.,Malta ICOM Educational , Sliema , Malta
| | - Damiana Mancini
- Unit of Respiratory Pathophysiology, Thoracic Endoscopy in the Division of Geriatrics and the Campus Bio Medico University and Teaching Hospital , Rome , Italy
| | | | - Simone Scarlata
- Unit of Respiratory Pathophysiology, Thoracic Endoscopy in the Division of Geriatrics and the Campus Bio Medico University and Teaching Hospital , Rome , Italy
| | - Christian Lunghi
- Clinical-Based Human Research Department , C.O.M.E. Collaboration ONLUS , Pescara , Italy.,Malta ICOM Educational , Sliema , Malta
| | - Francesco Cerritelli
- Clinical-Based Human Research Department , C.O.M.E. Collaboration ONLUS , Pescara , Italy
| | - Jason Haxton
- Museum of Osteopathic Medicine, A.T. Still University , Kirksville , MO , USA
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26
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Humayun F, Khan F, Fawad N, Shamas S, Fazal S, Khan A, Ali A, Farhan A, Wei DQ. Computational Method for Classification of Avian Influenza A Virus Using DNA Sequence Information and Physicochemical Properties. Front Genet 2021; 12:599321. [PMID: 33584824 PMCID: PMC7877484 DOI: 10.3389/fgene.2021.599321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 01/04/2021] [Indexed: 11/30/2022] Open
Abstract
Accurate and fast characterization of the subtype sequences of Avian influenza A virus (AIAV) hemagglutinin (HA) and neuraminidase (NA) depends on expanding diagnostic services and is embedded in molecular epidemiological studies. A new approach for classifying the AIAV sequences of the HA and NA genes into subtypes using DNA sequence data and physicochemical properties is proposed. This method simply requires unaligned, full-length, or partial sequences of HA or NA DNA as input. It allows for quick and highly accurate assignments of HA sequences to subtypes H1–H16 and NA sequences to subtypes N1–N9. For feature extraction, k-gram, discrete wavelet transformation, and multivariate mutual information were used, and different classifiers were trained for prediction. Four different classifiers, Naïve Bayes, Support Vector Machine (SVM), K nearest neighbor (KNN), and Decision Tree, were compared using our feature selection method. This comparison is based on the 30% dataset separated from the original dataset for testing purposes. Among the four classifiers, Decision Tree was the best, and Precision, Recall, F1 score, and Accuracy were 0.9514, 0.9535, 0.9524, and 0.9571, respectively. Decision Tree had considerable improvements over the other three classifiers using our method. Results show that the proposed feature selection method, when trained with a Decision Tree classifier, gives the best results for accurate prediction of the AIAV subtype.
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Affiliation(s)
- Fahad Humayun
- State Key Laboratory of Microbial Metabolism, Department of Bioinformatics and Biological Statistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Fatima Khan
- Department of Bioinformatics and Biosciences, Capital University of Science and Technology, Islamabad, Pakistan
| | - Nasim Fawad
- Poultry Research Institute, Rawalpindi, Pakistan
| | - Shazia Shamas
- Department of Zoology, University of Gujrat, Gujrat, Pakistan
| | - Sahar Fazal
- Department of Bioinformatics and Biosciences, Capital University of Science and Technology, Islamabad, Pakistan
| | - Abbas Khan
- State Key Laboratory of Microbial Metabolism, Department of Bioinformatics and Biological Statistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Arif Ali
- State Key Laboratory of Microbial Metabolism, Department of Bioinformatics and Biological Statistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Ali Farhan
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad, Pakistan
| | - Dong-Qing Wei
- State Key Laboratory of Microbial Metabolism, Department of Bioinformatics and Biological Statistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
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27
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Sparrow E, Wood JG, Chadwick C, Newall AT, Torvaldsen S, Moen A, Torelli G. Global production capacity of seasonal and pandemic influenza vaccines in 2019. Vaccine 2021; 39:512-520. [PMID: 33341308 PMCID: PMC7814984 DOI: 10.1016/j.vaccine.2020.12.018] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 11/30/2020] [Accepted: 12/06/2020] [Indexed: 12/19/2022]
Abstract
Vaccines will be an important element in mitigating the impact of an influenza pandemic. While research towards developing universal influenza vaccines is ongoing, the current strategy for vaccine supply in a pandemic relies on seasonal influenza vaccine production to be switched over to pandemic vaccines. Understanding how much vaccine could be produced, in which regions of the world and in what timeframe is critical to informing influenza pandemic preparedness. Through the Global Action Plan for Influenza Vaccines, 2006-2016, WHO promoted an increase in vaccine production capacity and monitors the landscape through periodically surveying influenza vaccine manufacturers. This study compares global capacity for production of influenza vaccines in 2019 with estimates from previous surveys; provides an overview of countries with established production facilities; presents vaccine production by type and manufacturing process; and discusses limitations to these estimates. Results of the current survey show that estimated annual seasonal influenza vaccine production capacity changed little since 2015 increasing from 1.47 billion to 1.48 billion doses with potential maximum annual influenza pandemic vaccine production capacity increasing from 6.37 billion to 8.31 billion doses. However, this figure should be interpreted with caution as it presents a best-case scenario with several assumptions which may impact supply. Further, pandemic vaccines would not be immediately available and could take four to six months for first supplies with several more months needed to reach maximum capacity. A moderate-case scenario is also presented of 4.15 billion doses of pandemic vaccine in 12 months. It is important to note that two doses of pandemic vaccine are likely to be required to elicit an adequate immune response. Continued efforts are needed to ensure the sustainability of this production and to conduct research for vaccines that are faster to produce and more broadly protective taking into account lessons learned from COVID-19 vaccine development.
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Affiliation(s)
- Erin Sparrow
- The World Health Organization, Geneva, Switzerland; School of Public Health and Community Medicine, UNSW Sydney, NSW, Australia.
| | - James G Wood
- School of Public Health and Community Medicine, UNSW Sydney, NSW, Australia
| | - Christopher Chadwick
- The World Health Organization, Geneva, Switzerland; Institute of Global Health, Faculty of Medicine, University of Geneva, Switzerland
| | - Anthony T Newall
- School of Public Health and Community Medicine, UNSW Sydney, NSW, Australia
| | - Siranda Torvaldsen
- School of Public Health and Community Medicine, UNSW Sydney, NSW, Australia; Women and Babies Research, The University of Sydney Northern Clinical School, NSW, Australia
| | - Ann Moen
- The World Health Organization, Geneva, Switzerland
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28
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Tabaszewski P, Gorecki P, Markin A, Anderson T, Eulenstein O. Consensus of All Solutions for Intractable Phylogenetic Tree Inference. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2021; 18:149-161. [PMID: 31613775 DOI: 10.1109/tcbb.2019.2947051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Solving median tree problems is a classic approach for inferring species trees from a collection of discordant gene trees. Median tree problems are typically NP-hard and dealt with by local search heuristics. Unfortunately, such heuristics generally lack provable correctness and precision. Algorithmic advances addressing this uncertainty have led to exact dynamic programming formulations suitable to solve a well-studied group of median tree problems for smaller phylogenetic analyses. However, these formulations allow computing only very few optimal species trees out of possibly many such trees, and phylogenetic studies often require the analysis of all optimal solutions through their consensus tree. Here, we describe a significant algorithmic modification of the dynamic programming formulations that compute the cluster counts of all optimal species trees from which various types of consensus trees can be efficiently computed. Through experimental studies, we demonstrate that our parallel implementation of the modified dynamic programming formulation is more efficient than a previous implementation of the original formulation. Finally, we show that the parallel implementation can rapidly identify novel reassorted influenza A viruses potentially facilitating pandemic preparedness efforts.
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29
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Kenyon C. Emergence of zoonoses such as COVID-19 reveals the need for health sciences to embrace an explicit eco-social conceptual framework of health and disease. Epidemics 2020; 33:100410. [PMID: 33152622 PMCID: PMC7577274 DOI: 10.1016/j.epidem.2020.100410] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 09/02/2020] [Accepted: 09/16/2020] [Indexed: 12/20/2022] Open
Abstract
An accurate understanding of why zoonoses such as SARS-CoV-2 are emerging at an increased rate, is vital to prevent future pandemics from the approximately 700,000 viruses with zoonotic potential. Certain authors have argued that the consumption of wildlife, or human contact with bats was responsible for the emergence of SARS-CoV-2. Others argue that a range of anthropogenic environmental degradations have played a vital role in the emergence of SARS-CoV-2 and other zoonoses. In this opinion piece, I argue that these divergent viewpoints stem, in part, from different foundational conceptual frameworks - biomedical individualist and eco-social frameworks, respectively. Based on the fact that the eco-social framework provides a more complete account of the different types of causal factors underpinning the emergence of zoonoses, I propose that the COVID-19 pandemic provides an additional reason for the health sciences to ground its theory of health and disease in an eco-social conceptual framework.
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Affiliation(s)
- Chris Kenyon
- HIV/STI Unit, Institute of Tropical Medicine, Antwerp, Belgium; Division of Infectious Diseases and HIV Medicine, University of Cape Town, Anzio Road, Observatory 7700, South Africa.
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30
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Frias-De-Diego A, Posey R, Pecoraro BM, Fernandes Carnevale R, Beaty A, Crisci E. A Century of Swine Influenza: Is It Really Just about the Pigs? Vet Sci 2020; 7:E189. [PMID: 33256019 PMCID: PMC7711507 DOI: 10.3390/vetsci7040189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/19/2020] [Accepted: 11/23/2020] [Indexed: 12/03/2022] Open
Abstract
Influenza viruses (IV) are one of the major threats to human and animal health worldwide due to the variety of species they affect. Pigs play an important role in IV ecology as the "mixing vessel," since they can be infected by swine, avian and human IV, allowing the appearance of new subtypes. Human viruses originated in swine are known as IV of swine origin or swine influenza virus (SwIV) variants. In this study, we identified knowledge tendencies of SwIV and assessed potential bias in the literature caused by these variants. We identified the most mentioned SwIV variants and manually reviewed the literature to determine the number of publications applying the whole influenza nomenclature, a partial nomenclature, only the subtype or mixed terminology, along with the proportion of articles in which the GenBank ID number was available. We observed that the 2009 H1N1 human pandemic created an important bias in SwIV research driven by an increase in human publications on the IV of swine origin. H1N1 is the most studied subtype for swine and humans, followed by H3N2. We found differences between the nomenclatures applied, where partial classifications were slightly more common. Finally, from all the publications, only 25% stated the GenBank ID of the sequence studied. This review represents the most complete exploration of trends in SwIV knowledge to date and will serve as a guidance for future search strategies in SwIV research.
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Affiliation(s)
- Alba Frias-De-Diego
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA; (A.F.-D.-D.); (B.M.P.)
| | - Rachael Posey
- William Rand Kenan, Jr. Library of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA;
| | - Brittany M. Pecoraro
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA; (A.F.-D.-D.); (B.M.P.)
| | - Rafaella Fernandes Carnevale
- Department of Nutrition and Animal Production, Universidade de São Paulo, Pirassununga 13635-900, State of São Paulo, Brazil;
| | - Alayna Beaty
- College of Agriculture and Life Sciences, North Carolina State University, Raleigh, NC 27695, USA;
| | - Elisa Crisci
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA; (A.F.-D.-D.); (B.M.P.)
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31
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Ramey AM, Reeves AB, Drexler JZ, Ackerman JT, De La Cruz S, Lang AS, Leyson C, Link P, Prosser DJ, Robertson GJ, Wight J, Youk S, Spackman E, Pantin-Jackwood M, Poulson RL, Stallknecht DE. Influenza A viruses remain infectious for more than seven months in northern wetlands of North America. Proc Biol Sci 2020; 287:20201680. [PMID: 32901574 PMCID: PMC7542776 DOI: 10.1098/rspb.2020.1680] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 08/11/2020] [Indexed: 01/07/2023] Open
Abstract
In this investigation, we used a combination of field- and laboratory-based approaches to assess if influenza A viruses (IAVs) shed by ducks could remain viable for extended periods in surface water within three wetland complexes of North America. In a field experiment, replicate filtered surface water samples inoculated with duck swabs were tested for IAVs upon collection and again after an overwintering period of approximately 6-7 months. Numerous IAVs were molecularly detected and isolated from these samples, including replicates maintained at wetland field sites in Alaska and Minnesota for 181-229 days. In a parallel laboratory experiment, we attempted to culture IAVs from filtered surface water samples inoculated with duck swabs from Minnesota each month during September 2018-April 2019 and found monthly declines in viral viability. In an experimental challenge study, we found that IAVs maintained in filtered surface water within wetlands of Alaska and Minnesota for 214 and 226 days, respectively, were infectious in a mallard model. Collectively, our results support surface waters of northern wetlands as a biologically important medium in which IAVs may be both transmitted and maintained, potentially serving as an environmental reservoir for infectious IAVs during the overwintering period of migratory birds.
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Affiliation(s)
- Andrew M. Ramey
- US Geological Survey, Alaska Science Center, 4210 University Drive, Anchorage, AK 99508, USA
| | - Andrew B. Reeves
- US Geological Survey, Alaska Science Center, 4210 University Drive, Anchorage, AK 99508, USA
| | - Judith Z. Drexler
- US Geological Survey, California Water Science Center, 6000 J Street, Placer Hall, Sacramento, CA 95819, USA
| | - Joshua T. Ackerman
- US Geological Survey, Western Ecological Research Center, Dixon Field Station, 800 Business Park Drive, Suite D, Dixon, CA 95620, USA
| | - Susan De La Cruz
- US Geological Survey, Western Ecological Research Center, San Francisco Bay Estuary Field Station, 350 N Akron Road, Building 19, Moffett Field, CA 94035, USA
| | - Andrew S. Lang
- Department of Biology, Memorial University of Newfoundland, 232 Elizabeth Avenue, St John's, Newfoundland, A1B 3X9, Canada
| | - Christina Leyson
- Exotic and Emerging Avian Viral Diseases Research Unit, US National Poultry Research Center, US Department of Agriculture, Agricultural Research Service, Athens, Georgia, USA
| | - Paul Link
- Louisiana Department of Wildlife and Fisheries, 2000 Quail Drive, Room 436, Baton Rouge, LA 70808, USA
| | - Diann J. Prosser
- US Geological Survey Patuxent Wildlife Research Center, 12100 Beech Forest Road, Laurel, MD 20708, USA
| | - Gregory J. Robertson
- Environment and Climate Change Canada, 6 Bruce Street, Mount Pearl, Newfoundland, A1N 4T3, Canada
| | - Jordan Wight
- Department of Biology, Memorial University of Newfoundland, 232 Elizabeth Avenue, St John's, Newfoundland, A1B 3X9, Canada
| | - Sungsu Youk
- Exotic and Emerging Avian Viral Diseases Research Unit, US National Poultry Research Center, US Department of Agriculture, Agricultural Research Service, Athens, Georgia, USA
| | - Erica Spackman
- Exotic and Emerging Avian Viral Diseases Research Unit, US National Poultry Research Center, US Department of Agriculture, Agricultural Research Service, Athens, Georgia, USA
| | - Mary Pantin-Jackwood
- Exotic and Emerging Avian Viral Diseases Research Unit, US National Poultry Research Center, US Department of Agriculture, Agricultural Research Service, Athens, Georgia, USA
| | - Rebecca L. Poulson
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
| | - David E. Stallknecht
- Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
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Bayesian inference of reassortment networks reveals fitness benefits of reassortment in human influenza viruses. Proc Natl Acad Sci U S A 2020; 117:17104-17111. [PMID: 32631984 PMCID: PMC7382287 DOI: 10.1073/pnas.1918304117] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Genetic recombination processes, such as reassortment, make it complex or impossible to use standard phylogenetic and phylodynamic methods. This is due to the fact that the shared evolutionary history of individuals has to be represented by a phylogenetic network instead of a tree. We therefore require novel approaches that allow us to coherently model these processes and that allow us to perform inference in the presence of such processes. Here, we introduce an approach to infer reassortment networks of segmented viruses using a Markov chain Monte Carlo approach. Our approach allows us to study different aspects of the reassortment process and allows us to show fitness benefits of reassortment events in seasonal human influenza viruses. Reassortment is an important source of genetic diversity in segmented viruses and is the main source of novel pathogenic influenza viruses. Despite this, studying the reassortment process has been constrained by the lack of a coherent, model-based inference framework. Here, we introduce a coalescent-based model that allows us to explicitly model the joint coalescent and reassortment process. In order to perform inference under this model, we present an efficient Markov chain Monte Carlo algorithm to sample rooted networks and the embedding of phylogenetic trees within networks. This algorithm provides the means to jointly infer coalescent and reassortment rates with the reassortment network and the embedding of segments in that network from full-genome sequence data. Studying reassortment patterns of different human influenza datasets, we find large differences in reassortment rates across different human influenza viruses. Additionally, we find that reassortment events predominantly occur on selectively fitter parts of reassortment networks showing that on a population level, reassortment positively contributes to the fitness of human influenza viruses.
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33
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Prevalent Eurasian avian-like H1N1 swine influenza virus with 2009 pandemic viral genes facilitating human infection. Proc Natl Acad Sci U S A 2020; 117:17204-17210. [PMID: 32601207 DOI: 10.1073/pnas.1921186117] [Citation(s) in RCA: 165] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Pigs are considered as important hosts or "mixing vessels" for the generation of pandemic influenza viruses. Systematic surveillance of influenza viruses in pigs is essential for early warning and preparedness for the next potential pandemic. Here, we report on an influenza virus surveillance of pigs from 2011 to 2018 in China, and identify a recently emerged genotype 4 (G4) reassortant Eurasian avian-like (EA) H1N1 virus, which bears 2009 pandemic (pdm/09) and triple-reassortant (TR)-derived internal genes and has been predominant in swine populations since 2016. Similar to pdm/09 virus, G4 viruses bind to human-type receptors, produce much higher progeny virus in human airway epithelial cells, and show efficient infectivity and aerosol transmission in ferrets. Moreover, low antigenic cross-reactivity of human influenza vaccine strains with G4 reassortant EA H1N1 virus indicates that preexisting population immunity does not provide protection against G4 viruses. Further serological surveillance among occupational exposure population showed that 10.4% (35/338) of swine workers were positive for G4 EA H1N1 virus, especially for participants 18 y to 35 y old, who had 20.5% (9/44) seropositive rates, indicating that the predominant G4 EA H1N1 virus has acquired increased human infectivity. Such infectivity greatly enhances the opportunity for virus adaptation in humans and raises concerns for the possible generation of pandemic viruses.
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34
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da Silva JKR, Figueiredo PLB, Byler KG, Setzer WN. Essential Oils as Antiviral Agents. Potential of Essential Oils to Treat SARS-CoV-2 Infection: An In-Silico Investigation. Int J Mol Sci 2020; 21:E3426. [PMID: 32408699 PMCID: PMC7279430 DOI: 10.3390/ijms21103426] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/07/2020] [Accepted: 05/08/2020] [Indexed: 01/08/2023] Open
Abstract
Essential oils have shown promise as antiviral agents against several pathogenic viruses. In this work we hypothesized that essential oil components may interact with key protein targets of the 2019 severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). A molecular docking analysis was carried out using 171 essential oil components with SARS-CoV-2 main protease (SARS-CoV-2 Mpro), SARS-CoV-2 endoribonucleoase (SARS-CoV-2 Nsp15/NendoU), SARS-CoV-2 ADP-ribose-1″-phosphatase (SARS-CoV-2 ADRP), SARS-CoV-2 RNA-dependent RNA polymerase (SARS-CoV-2 RdRp), the binding domain of the SARS-CoV-2 spike protein (SARS-CoV-2 rS), and human angiotensin-converting enzyme (hACE2). The compound with the best normalized docking score to SARS-CoV-2 Mpro was the sesquiterpene hydrocarbon (E)-β-farnesene. The best docking ligands for SARS-CoV Nsp15/NendoU were (E,E)-α-farnesene, (E)-β-farnesene, and (E,E)-farnesol. (E,E)-Farnesol showed the most exothermic docking to SARS-CoV-2 ADRP. Unfortunately, the docking energies of (E,E)-α-farnesene, (E)-β-farnesene, and (E,E)-farnesol with SARS-CoV-2 targets were relatively weak compared to docking energies with other proteins and are, therefore, unlikely to interact with the virus targets. However, essential oil components may act synergistically, essential oils may potentiate other antiviral agents, or they may provide some relief of COVID-19 symptoms.
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Affiliation(s)
- Joyce Kelly R. da Silva
- Laboratório de Biotecnologia de Enzimas e Biotransformações, Universidade Federal do Pará, Belém PA 66075-900, Brazil;
| | - Pablo Luis Baia Figueiredo
- Departamento de Ciências Naturais, Centro de Ciências Sociais e Educação, Universidade do Estado do Pará, Belém PA 66050-540, Brazil;
| | - Kendall G. Byler
- Department of Biological Sciences, University of Alabama in Huntsville, Huntsville, AL 35899, USA;
| | - William N. Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA
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35
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Song Y, Ren F, Sun D, Wang M, Baker JS, István B, Gu Y. Benefits of Exercise on Influenza or Pneumonia in Older Adults: A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E2655. [PMID: 32294922 PMCID: PMC7215850 DOI: 10.3390/ijerph17082655] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/07/2020] [Accepted: 04/09/2020] [Indexed: 12/18/2022]
Abstract
A coronavirus pandemic has recently become one of the greatest threats the world is facing. Older adults are under a high risk of infection because of weaker immune systems. Therefore, the purpose of this review is to summarize the recent scientific evidence that outlines the effects of exercise on influenza or pneumonia in older adults. An electronic literature search was conducted using the WEB OF SCIENCE, SCIENCEDIRECT and GOOGLE SCHOLAR databases using the following keywords, "Exercise," "Older adult," "Influenza," and "Pneumonia." Any randomized control trials, cross-sectional and observational studies that related to this topic were all included. Twenty studies met the eligibility criteria for this review. Thirteen randomized control trials investigated the effects of exercise on the immune responses to influenza or pneumonia vaccination: seven trials employed moderate aerobic exercise, three employed resistance exercise, and the remaining three used Asian martial arts or special home-based exercises. Five cross-sectional and two observational studies examined the associations between exercise/physical condition and influenza/pneumonia. Most of the current studies suggested that prolonged moderate aerobic exercise may help to reduce the risk of influenza-related infection and improve the immune responses to influenza or pneumonia vaccination in older adults. In addition, training in traditional Asian martial arts was also found to be beneficial. Future research should focus on the different effects of moderate and vigorous exercise on influenza-related diseases.
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Affiliation(s)
- Yang Song
- Faculty of Sports Science, Ningbo University, Ningbo 315211, China;
| | - Feng Ren
- Faculty of Sports Science, Ningbo University, Ningbo 315211, China;
| | - Dong Sun
- Faculty of Engineering, University of Pannonia Veszeprem, 8200 Veszprém, Hungary; (D.S.); (M.W.)
| | - Meizi Wang
- Faculty of Engineering, University of Pannonia Veszeprem, 8200 Veszprém, Hungary; (D.S.); (M.W.)
| | - Julien S. Baker
- Department of Sport and Physical Education, Hong Kong Baptist University, Hong Kong 999077, China;
| | - Bíró István
- Faculty of Engineering, University of Szeged, 6724 Szeged, Hungary;
| | - Yaodong Gu
- Faculty of Sports Science, Ningbo University, Ningbo 315211, China;
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36
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Kubo M, Miyauchi K. Breadth of Antibody Responses during Influenza Virus Infection and Vaccination. Trends Immunol 2020; 41:394-405. [PMID: 32265127 DOI: 10.1016/j.it.2020.03.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 03/07/2020] [Accepted: 03/09/2020] [Indexed: 12/21/2022]
Abstract
Influenza viruses are a major public health problem, causing severe respiratory diseases. Vaccines offer the effective protective strategy against influenza virus infection. However, the systemic and adaptive immune responses to infection and vaccination are quite different. Inactivated vaccines are the best available countermeasure to induce effective antibodies against the emerged virus, but the response is narrow compared with potential breadth of virus infection. There is solid evidence to indicate that antibody responses to natural infection are relatively broad and exhibit quite different immunodominance patterns. Furthermore, T follicular helper cells (TFH) and germinal center (GC) responses play a central role in generating broad protective antibodies. In this review, we discuss recent advances on the contribution of TFH and GC responses to the breadth of antibody responses.
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Affiliation(s)
- Masato Kubo
- Laboratory for Cytokine Regulation, Center for Integrative Medical Science (IMS), RIKEN Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa 230-0045, Japan; Division of Molecular Pathology, Research Institute for Biomedical Science, Tokyo University of Science, 2669 Yamazaki, Noda-shi, Chiba 278-0022, Japan.
| | - Kosuke Miyauchi
- Laboratory for Cytokine Regulation, Center for Integrative Medical Science (IMS), RIKEN Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa 230-0045, Japan
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37
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Abstract
The adaptive immune response to influenza virus infection is multifaceted and complex, involving antibody and cellular responses at both systemic and mucosal levels. Immune responses to natural infection with influenza virus in humans are relatively broad and long-lived, but influenza viruses can escape from these responses over time owing to their high mutation rates and antigenic flexibility. Vaccines are the best available countermeasure against infection, but vaccine effectiveness is low compared with other viral vaccines, and the induced immune response is narrow and short-lived. Furthermore, inactivated influenza virus vaccines focus on the induction of systemic IgG responses but do not effectively induce mucosal IgA responses. Here, I review the differences between natural infection and vaccination in terms of the antibody responses they induce and how these responses protect against future infection. A better understanding of how natural infection induces broad and long-lived immune responses will be key to developing next-generation influenza virus vaccines.
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Ravina, Dalal A, Mohan H, Prasad M, Pundir C. Detection methods for influenza A H1N1 virus with special reference to biosensors: a review. Biosci Rep 2020; 40:BSR20193852. [PMID: 32016385 PMCID: PMC7000365 DOI: 10.1042/bsr20193852] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 11/18/2019] [Accepted: 01/06/2020] [Indexed: 12/30/2022] Open
Abstract
H1N1 (Swine flu) is caused by influenza A virus, which is a member of Orthomyxoviridae family. Transmission of H1N1 occurs from human to human through air or sometimes from pigs to humans. The influenza virus has different RNA segments, which can reassert to make new virus strain with the possibility to create an outbreak in unimmunized people. Gene reassortment is a process through which new strains are emerging in pigs, as it has specific receptors for both human influenza and avian influenza viruses. H1N1 binds specifically with an α-2,6 glycosidic bond, which is present in human respiratory tract cells as well as in pigs. Considering the fact of fast multiplication of viruses inside the living cells, rapid detection methods need an hour. Currently, WHO recommended methods for the detection of swine flu include real-time PCR in specific testing centres that take 3-4 h. More recently, a number of methods such as Antigen-Antibody or RT-LAMP and DNA biosensors have also been developed that are rapid and more sensitive. This review describes the various challenges in the diagnosis of H1N1, and merits and demerits of conventional vis-à-vis latest methods with special emphasis on biosensors.
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Affiliation(s)
- Ravina
- Centre for Medical Biotechnology, Maharshi Dayanand University, Rohtak, Haryana 124001, India
| | - Anita Dalal
- DCR University of Science and Technology, Murthal, Sonepat, Haryana 131039, India
| | - Hari Mohan
- Centre for Medical Biotechnology, Maharshi Dayanand University, Rohtak, Haryana 124001, India
| | - Minakshi Prasad
- Department of Animal Biotechnology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana 125004, India
| | - C.S. Pundir
- Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana 124001, India
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Kain T, Fowler R. Preparing intensive care for the next pandemic influenza. Crit Care 2019; 23:337. [PMID: 31665057 PMCID: PMC6819413 DOI: 10.1186/s13054-019-2616-1] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 09/20/2019] [Indexed: 01/09/2023] Open
Abstract
Few viruses have shaped the course of human history more than influenza viruses. A century since the 1918-1919 Spanish influenza pandemic-the largest and deadliest influenza pandemic in recorded history-we have learned much about pandemic influenza and the origins of antigenic drift among influenza A viruses. Despite this knowledge, we remain largely underprepared for when the next major pandemic occurs.While emergency departments are likely to care for the first cases of pandemic influenza, intensive care units (ICUs) will certainly see the sickest and will likely have the most complex issues regarding resource allocation. Intensivists must therefore be prepared for the next pandemic influenza virus. Preparation requires multiple steps, including careful surveillance for new pandemics, a scalable response system to respond to surge capacity, vaccine production mechanisms, coordinated communication strategies, and stream-lined research plans for timely initiation during a pandemic. Conservative models of a large-scale influenza pandemic predict more than 170% utilization of ICU-level resources. When faced with pandemic influenza, ICUs must have a strategy for resource allocation as strain increases on the system.There are several current threats, including avian influenza A(H5N1) and A(H7N9) viruses. As humans continue to live in closer proximity to each other, travel more extensively, and interact with greater numbers of birds and livestock, the risk of emergence of the next pandemic influenza virus mounts. Now is the time to prepare and coordinate local, national, and global efforts.
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Affiliation(s)
- Taylor Kain
- Department of Critical Care, University of Toronto, Toronto, ON, Canada
| | - Robert Fowler
- Department of Critical Care, University of Toronto, Toronto, ON, Canada.
- Sunnybrook Health Sciences Centre, Room D478, 2075 Bayview Avenue, Toronto, ON, M4N 3M5, Canada.
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40
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Kim EH, Kim SW, Park SJ, Kim S, Yu KM, Kim SG, Lee SH, Seo YK, Cho NH, Kang K, Soung DY, Choi YK. Greater Efficacy of Black Ginseng (CJ EnerG) over Red Ginseng against Lethal Influenza A Virus Infection. Nutrients 2019; 11:nu11081879. [PMID: 31412594 PMCID: PMC6723933 DOI: 10.3390/nu11081879] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 08/09/2019] [Accepted: 08/12/2019] [Indexed: 01/28/2023] Open
Abstract
Black ginseng (BG, CJ EnerG), prepared via nine repeated cycles of steaming and drying of fresh ginseng, contains more accessible acid polysaccharides and smaller and less polar ginsenosides than red ginseng (RG) processed only once. Because RG exhibits the ability to increase host protection against viral respiratory infections, we investigated the antiviral effects of BG. Mice were orally administered either BG or RG extract at 10 mg/kg bw daily for two weeks. Mice were then infected with a A(H1N1) pdm09 (A/California/04/2009) virus and fed extracts for an additional week. Untreated, infected mice were assigned to either the negative control, without treatments, or the positive control, treated with Tamiflu. Infected mice were monitored for 14 days to determine the survival rate. Lung tissues were evaluated for virus titer and by histological analyses. Cytokine levels were measured in bronchoalveolar lavage fluid. Mice treated with BG displayed a 100% survival rate against infection, while mice treated with RG had a 50% survival rate. Further, mice treated with BG had fewer accumulated inflammatory cells in bronchioles following viral infection than did mice treated with RG. BG also enhanced the levels of GM-CSF and IL-10 during the early and late stages of infection, respectively, compared to RG. Thus, BG may be useful as an alternative antiviral adjuvant to modulate immune responses to influenza A virus.
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Affiliation(s)
- Eun-Ha Kim
- College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju 28644, Korea
| | - Son-Woo Kim
- The Institutes of Food, CJ CheilJedang, Suwon 16495, Korea
| | - Su-Jin Park
- College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju 28644, Korea
| | - Semi Kim
- College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju 28644, Korea
| | - Kwang-Min Yu
- College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju 28644, Korea
| | | | - Seung Hun Lee
- College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju 28644, Korea
| | - Yong-Ki Seo
- The Institutes of Food, CJ CheilJedang, Suwon 16495, Korea
| | - Nam-Hoon Cho
- The Institutes of Food, CJ CheilJedang, Suwon 16495, Korea
| | - Kimoon Kang
- The Institutes of Food, CJ CheilJedang, Suwon 16495, Korea
| | - Do Y Soung
- The Institutes of Food, CJ CheilJedang, Suwon 16495, Korea.
| | - Young-Ki Choi
- College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju 28644, Korea.
- ID Bio Corporation, Cheongju 28370, Korea.
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41
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Qiu X, Duvvuri VR, Bahl J. Computational Approaches and Challenges to Developing Universal Influenza Vaccines. Vaccines (Basel) 2019; 7:E45. [PMID: 31141933 PMCID: PMC6631137 DOI: 10.3390/vaccines7020045] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 05/15/2019] [Accepted: 05/23/2019] [Indexed: 12/25/2022] Open
Abstract
The traditional design of effective vaccines for rapidly-evolving pathogens, such as influenza A virus, has failed to provide broad spectrum and long-lasting protection. With low cost whole genome sequencing technology and powerful computing capabilities, novel computational approaches have demonstrated the potential to facilitate the design of a universal influenza vaccine. However, few studies have integrated computational optimization in the design and discovery of new vaccines. Understanding the potential of computational vaccine design is necessary before these approaches can be implemented on a broad scale. This review summarizes some promising computational approaches under current development, including computationally optimized broadly reactive antigens with consensus sequences, phylogenetic model-based ancestral sequence reconstruction, and immunomics to compute conserved cross-reactive T-cell epitopes. Interactions between virus-host-environment determine the evolvability of the influenza population. We propose that with the development of novel technologies that allow the integration of data sources such as protein structural modeling, host antibody repertoire analysis and advanced phylodynamic modeling, computational approaches will be crucial for the development of a long-lasting universal influenza vaccine. Taken together, computational approaches are powerful and promising tools for the development of a universal influenza vaccine with durable and broad protection.
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Affiliation(s)
- Xueting Qiu
- Center for Ecology of Infectious Diseases, Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA.
| | - Venkata R Duvvuri
- Center for Ecology of Infectious Diseases, Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA.
| | - Justin Bahl
- Center for Ecology of Infectious Diseases, Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA.
- Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, Athens, GA 30606, USA.
- Duke-NUS Graduate Medical School, Singapore 169857, Singapore.
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42
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Nickol ME, Kindrachuk J. A year of terror and a century of reflection: perspectives on the great influenza pandemic of 1918-1919. BMC Infect Dis 2019; 19:117. [PMID: 30727970 PMCID: PMC6364422 DOI: 10.1186/s12879-019-3750-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 01/28/2019] [Indexed: 12/14/2022] Open
Abstract
Background In the spring of 1918, the “War to End All Wars”, which would ultimately claim more than 37 million lives, had entered into its final year and would change the global political and economic landscape forever. At the same time, a new global threat was emerging and would become one of the most devastating global health crises in recorded history. Main text The 1918 H1N1 pandemic virus spread across Europe, North America, and Asia over a 12-month period resulting in an estimated 500 million infections and 50–100 million deaths worldwide, of which ~ 50% of these occurred within the fall of 1918 (Emerg Infect Dis 12:15-22, 2006, Bull Hist Med 76:105-115, 2002). However, the molecular factors that contributed to the emergence of, and subsequent public health catastrophe associated with, the 1918 pandemic virus remained largely unknown until 2005, when the characterization of the reconstructed pandemic virus was announced heralding a new era of advanced molecular investigations (Science 310:77-80, 2005). In the century following the emergence of the 1918 pandemic virus we have landed on the Moon, developed the electronic computer (and a global internet), and have eradicated smallpox. In contrast, we have a largely remedial knowledge and understanding of one of the greatest scourges in recorded history. Conclusion Here, we reflect on the 1918 influenza pandemic, including its emergence and subsequent rapid global spread. In addition, we discuss the pathophysiology associated with the 1918 virus and its predilection for the young and healthy, the rise of influenza therapeutic research following the pandemic, and, finally, our level of preparedness for future pandemics.
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Affiliation(s)
- Michaela E Nickol
- Laboratory of Emerging and Re-Emerging Viruses, Department of Medical Microbiology, University of Manitoba, 523-745 Bannatyne Avenue, Winnipeg, MB, R3E 0J9, Canada
| | - Jason Kindrachuk
- Laboratory of Emerging and Re-Emerging Viruses, Department of Medical Microbiology, University of Manitoba, 523-745 Bannatyne Avenue, Winnipeg, MB, R3E 0J9, Canada.
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Liu WJ, Bi Y, Wang D, Gao GF. On the Centenary of the Spanish Flu: Being Prepared for the Next Pandemic. Virol Sin 2018; 33:463-466. [PMID: 30570715 PMCID: PMC6335225 DOI: 10.1007/s12250-018-0079-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 12/15/2018] [Indexed: 11/24/2022] Open
Affiliation(s)
- William J Liu
- Chinese National Influenza Center (CNIC), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), Beijing, 102206, China
| | - Yuhai Bi
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Center for Influenza Research and Early-Warning (CASCIRE), Chinese Academy of Sciences, Beijing, 100101, China
| | - Dayan Wang
- Chinese National Influenza Center (CNIC), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), Beijing, 102206, China
| | - George F Gao
- Chinese National Influenza Center (CNIC), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), Beijing, 102206, China. .,CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Center for Influenza Research and Early-Warning (CASCIRE), Chinese Academy of Sciences, Beijing, 100101, China.
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44
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Ferraris O, Casalegno JS, Frobert E, Bouscambert Duchamp M, Valette M, Jacquot F, Raoul H, Lina B, Ottmann M. The NS Segment of H1N1pdm09 Enhances H5N1 Pathogenicity in a Mouse Model of Influenza Virus Infections. Viruses 2018; 10:v10090504. [PMID: 30227598 PMCID: PMC6164720 DOI: 10.3390/v10090504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 09/13/2018] [Accepted: 09/15/2018] [Indexed: 11/17/2022] Open
Abstract
In 2009, the co-circulation of H5N1 and H1N1pdm09 raised concerns that a reassortment event may lead to highly pathogenic influenza strains. H1N1pdm09 and H5N1 are able to infect the same target cells of the lower respiratory tract. To investigate the capacity of the emergence of reassortant viruses, we characterized viruses obtained from the co-infection of cells with H5N1 (A/Turkey/13/2006) and H1N1pdm09 (A/Lyon/969/2009 H1N1). In our analysis, all the screened reassortants possessed the PB2, HA, and NP segments from H5N1 and acquired one or two of the H1N1pdm09 segments. Moreover, the in vivo infections showed that the acquisition of the NS segment from H1N1pdm09 increased the virulence of H5N1 in mice. We conclude, therefore, that reassortment can occur between these two viruses, even if this process has never been detected in nature.
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Affiliation(s)
- Olivier Ferraris
- Laboratoire de Virologie et Pathologies Humaines Virpath, CIRI, Centre International de Recherche en Infectiologie, Université de Lyon, Inserm U1111, CNRS UMR5308, École Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, 69372 CEDEX 08 Lyon, France.
| | - Jean-Sébastien Casalegno
- Laboratoire de Virologie et Pathologies Humaines Virpath, CIRI, Centre International de Recherche en Infectiologie, Université de Lyon, Inserm U1111, CNRS UMR5308, École Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, 69372 CEDEX 08 Lyon, France.
- Laboratoire de Virologie, Institut des Agents Infectieux, Groupement Hospitalier Nord des Hospices Civils de Lyon, 69317 CEDEX 04 Lyon, France.
| | - Emilie Frobert
- Laboratoire de Virologie et Pathologies Humaines Virpath, CIRI, Centre International de Recherche en Infectiologie, Université de Lyon, Inserm U1111, CNRS UMR5308, École Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, 69372 CEDEX 08 Lyon, France.
- Laboratoire de Virologie, Institut des Agents Infectieux, Groupement Hospitalier Nord des Hospices Civils de Lyon, 69317 CEDEX 04 Lyon, France.
| | - Maude Bouscambert Duchamp
- Laboratoire de Virologie, Institut des Agents Infectieux, Groupement Hospitalier Nord des Hospices Civils de Lyon, 69317 CEDEX 04 Lyon, France.
| | - Martine Valette
- Laboratoire de Virologie, Institut des Agents Infectieux, Groupement Hospitalier Nord des Hospices Civils de Lyon, 69317 CEDEX 04 Lyon, France.
- Laboratoire de Virologie, Centre National de Référence Virus des Infections Respiratoires, Groupement Hospitalier Nord des Hospices Civils de Lyon, 69317 CEDEX 04 Lyon, France.
| | - Frédéric Jacquot
- Laboratoire P4 Jean Mérieux Inserm US003, 69365 CEDEX 07 Lyon, France.
| | - Hervé Raoul
- Laboratoire P4 Jean Mérieux Inserm US003, 69365 CEDEX 07 Lyon, France.
| | - Bruno Lina
- Laboratoire de Virologie et Pathologies Humaines Virpath, CIRI, Centre International de Recherche en Infectiologie, Université de Lyon, Inserm U1111, CNRS UMR5308, École Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, 69372 CEDEX 08 Lyon, France.
- Laboratoire de Virologie, Institut des Agents Infectieux, Groupement Hospitalier Nord des Hospices Civils de Lyon, 69317 CEDEX 04 Lyon, France.
- Laboratoire de Virologie, Centre National de Référence Virus des Infections Respiratoires, Groupement Hospitalier Nord des Hospices Civils de Lyon, 69317 CEDEX 04 Lyon, France.
| | - Michèle Ottmann
- Laboratoire de Virologie et Pathologies Humaines Virpath, CIRI, Centre International de Recherche en Infectiologie, Université de Lyon, Inserm U1111, CNRS UMR5308, École Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, 69372 CEDEX 08 Lyon, France.
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45
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Singh S, Malhotra AG, Jha M, Pandey KM. Implications of protein conformations to modifying novel inhibitor Oseltamivir for 2009 H1N1 influenza A virus by simulation and docking studies. Virusdisease 2018; 29:461-467. [PMID: 30539048 DOI: 10.1007/s13337-018-0480-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 07/28/2018] [Indexed: 12/18/2022] Open
Abstract
Recently three FDA approved existing drugs, namely-Oseltamivir, Peramivir and Zanamivir, used against Neuraminidase (NA) for the inhibitory effect on the process of viral progeny release to inhibit infection. All NA subtypes has been divided into two groups (Group 1 and Group 2) based on phylogenetic study. Oseltamivir and Zanamivir drugs are designed for Group 2 NA but are also used against 2009 H1N1 NA that lies in Group 1. There is no specific drug available for H1N1 and, consequently, there is an urgent requirement for the same. The structure-based drug design and fragment-based drug design methods are used for building more effective and economic drug molecules. In this work, the fragment-based drug development followed by fragment evolution on the basis of protein conformations after every 10 ns of 100 ns simulation. There are two analogs of Oseltamivir acid drug discovered in this study. Only analog 1, along with Oseltamivir acid, were then docked with the native protein. The analog 1 (benzoic acid inhibitor 11) exhibited higher binding affinity value of - 10.70 kcal/mol in comparison to its predecessor. The concept of conformations and protein-ligand interactions can be useful in designing new drugs for H1N1 with high specific binding.
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Affiliation(s)
- Sudha Singh
- Department of Biological Science and Engineering, Maulana Azad National Institute of Technology, Bhopal, India
| | - Anvita Gupta Malhotra
- Department of Biological Science and Engineering, Maulana Azad National Institute of Technology, Bhopal, India
| | - Mohit Jha
- Department of Biological Science and Engineering, Maulana Azad National Institute of Technology, Bhopal, India
| | - Khushhali Menaria Pandey
- Department of Biological Science and Engineering, Maulana Azad National Institute of Technology, Bhopal, India
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46
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Carnero AM, Kitayama K, Diaz DA, Garvich M, Angulo N, Cama VA, Gilman RH, Bayer AM. Risk for interspecies transmission of zoonotic pathogens during poultry processing and pork production in Peru: A qualitative study. Zoonoses Public Health 2018; 65:528-539. [PMID: 29602269 DOI: 10.1111/zph.12463] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Indexed: 12/14/2022]
Abstract
Interspecies transmission of pathogens is an unfrequent but naturally occurring event and human activities may favour opportunities not previously reported. Reassortment of zoonotic pathogens like influenza A virus can result from these activities. Recently, swine and birds have played a central role as "mixing vessels" for epidemic and pandemic events related to strains like H1N1 and H5N1. Unsafe practices in poultry markets and swine farms can lead to interspecies transmission, favouring the emergence of novel strains. Thus, understanding practices that lead to interspecies interactions is crucial. This qualitative study aimed to evaluate poultry processing practices in formal and informal markets and the use of leftovers by swine farmers in three Peruvian cities: Lima (capital), Tumbes (coastal) and Tarapoto (jungle). We conducted 80 direct observations at formal and informal markets and interviewed 15 swine farmers. Processors slaughter and pluck chickens and vendors and/or processors eviscerate chickens. Food safety and hygiene practices were suboptimal or absent, although some heterogeneity was observed between cities and chicken vendors versus processors. Both vendors (76%) and processors (100%) sold the chicken viscera leftovers to swine farmers, representing the main source of chicken viscera for swine farms (53%). Swine farmers fed the chicken viscera to their swine. Chicken viscera cooking times varied widely and were insufficient in some cases. Non-abattoired poultry leads to the sale of poultry leftovers to small-scale swine farms, resulting in indirect but frequent interspecies contacts that can lead to interspecies transmission of bacterial pathogens or the reassortment of influenza A viruses. These interactions are exacerbated by suboptimal safety and hygiene conditions. People involved in these activities constitute an at-risk population who could play a central role in preventing the transmission of pathogens between species. Educational interventions on hygiene and food safety practices will be important for reducing the risk of interspecies influenza transmission.
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Affiliation(s)
- A M Carnero
- Facultad de Salud Pública y Administración, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - K Kitayama
- Division of Infectious Diseases, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - D A Diaz
- Asociación Benéfica Proyectos en Informática, Salud, Medicina y Agricultura (AB PRISMA), Lima, Peru
| | - M Garvich
- Asociación Benéfica Proyectos en Informática, Salud, Medicina y Agricultura (AB PRISMA), Lima, Peru
| | - N Angulo
- Asociación Benéfica Proyectos en Informática, Salud, Medicina y Agricultura (AB PRISMA), Lima, Peru
| | - V A Cama
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - R H Gilman
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - A M Bayer
- Facultad de Salud Pública y Administración, Universidad Peruana Cayetano Heredia, Lima, Peru
- Division of Infectious Diseases, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
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47
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Abstract
Influenza viruses undergo rapid antigenic evolution and reassortment, resulting in annual epidemics and the occasional pandemics. Exposure to influenza virus hemagglutinin (HA) and neuraminidase (NA) antigen, either through vaccination or infection, induces an antibody response able to recognize only the homologous antigenic subtype. However, atypical antibody responses recognizing non-homologous influenza subtypes have been reported during infection and vaccination. Here, we review the incidence of these phenomena in published literature and discuss the potential mechanisms underlying them.
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Affiliation(s)
- Dalton Hermans
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Richard J Webby
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Sook-San Wong
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
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48
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Järhult JD. Environmental resistance development to influenza antivirals: a case exemplifying the need for a multidisciplinary One Health approach including physicians. Acta Vet Scand 2018; 60:6. [PMID: 29370857 PMCID: PMC5784702 DOI: 10.1186/s13028-018-0360-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 01/17/2018] [Indexed: 12/20/2022] Open
Abstract
A multidisciplinary approach is a prerequisite for One Health. Physicians are important players in the One Health team, yet they are often hard to convince of the benefits of the One Health approach. Here, the case for multidisciplinarity including physicians is made using the example of environmental resistance development to influenza antivirals. Neuraminidase inhibitors are the major class of anti-influenza pharmaceuticals, and extensively stockpiled globally as a cornerstone of pandemic preparedness, especially important in the first phase before vaccines can be mass-produced. The active metabolite of oseltamivir that is excreted from treated patients degrades poorly in conventional sewage treatment processes and has been found in river waters. Dabbling ducks constitute the natural influenza A virus reservoir and often reside near sewage treatment plant outlets, where they may be exposed to neuraminidase inhibitor residues. In vivo experiments using influenza-infected Mallards exposed to neuraminidase inhibitors present in their water have shown resistance development and persistence, demonstrating that resistance may be induced and become established in the influenza strains circulating in natural hosts. Neuraminidase inhibitor resistance genes may become part of a human-adapted influenza virus with pandemic potential through reassortment or direct transmission. A pandemic caused by a neuraminidase inhibitor-resistant influenza virus is a serious threat as the first line defense in pandemic preparedness would be disarmed. To assess the risk for environmental influenza resistance development, a broad multidisciplinary team containing chemists, social scientists, veterinarians, biologists, ecologists, virologists, epidemiologists, and physicians is needed. Information about One Health early in high school and undergraduate training, an active participation of One Health-engaged physicians in the debate, and more One Health-adapted funding and publication possibilities are suggested to increase the possibility to engage physicians.
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Affiliation(s)
- Josef D Järhult
- Zoonosis Science Center, Department of Medical Sciences, Uppsala University, 75185, Uppsala, Sweden.
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49
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Nykvist M, Gillman A, Söderström Lindström H, Tang C, Fedorova G, Lundkvist Å, Latorre-Margalef N, Wille M, Järhult JD. In vivo mallard experiments indicate that zanamivir has less potential for environmental influenza A virus resistance development than oseltamivir. J Gen Virol 2017; 98:2937-2949. [PMID: 29139346 DOI: 10.1099/jgv.0.000977] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Neuraminidase inhibitors are a cornerstone of influenza pandemic preparedness before vaccines can be mass-produced and thus a neuraminidase inhibitor-resistant pandemic is a serious threat to public health. Earlier work has demonstrated the potential for development and persistence of oseltamivir resistance in influenza A viruses exposed to environmentally relevant water concentrations of the drug when infecting mallards, the natural influenza reservoir that serves as the genetic base for human pandemics. As zanamivir is the major second-line neuraminidase inhibitor treatment, this study aimed to assess the potential for development and persistence of zanamivir resistance in an in vivo mallard model; especially important as zanamivir will probably be increasingly used. Our results indicate less potential for development and persistence of resistance due to zanamivir than oseltamivir in an environmental setting. This conclusion is based on: (1) the lower increase in zanamivir IC50 conferred by the mutations caused by zanamivir exposure (2-17-fold); (2) the higher zanamivir water concentration needed to induce resistance (at least 10 µg l-1); (3) the lack of zanamivir resistance persistence without drug pressure; and (4) the multiple resistance-related substitutions seen during zanamivir exposure (V116A, A138V, R152K, T157I and D199G) suggesting lack of one straight-forward evolutionary path to resistance. Our study also adds further evidence regarding the stability of the oseltamivir-induced substitution H275Y without drug pressure, and demonstrates the ability of a H275Y-carrying virus to acquire secondary mutations, further boosting oseltamivir resistance when exposed to zanamivir. Similar studies using influenza A viruses of the N2-phylogenetic group of neuraminidases are recommended.
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Affiliation(s)
- Marie Nykvist
- Zoonosis Science Center, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Anna Gillman
- Section for Infectious Diseases, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Hanna Söderström Lindström
- Department of Chemistry, Umeå University, Umeå, Sweden.,Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine, Umeå University, Umeå, Sweden
| | - Chaojun Tang
- Department of Chemistry, Umeå University, Umeå, Sweden
| | - Ganna Fedorova
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Vodnany, Czech Republic
| | - Åke Lundkvist
- Zoonosis Science Center, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Neus Latorre-Margalef
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Faculty of Health and Life Sciences, Linnaeus University, Kalmar, Sweden
| | - Michelle Wille
- Zoonosis Science Center, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden.,Present address: WHO Collaborating Centre for Reference and Research on Influenza, The Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Josef D Järhult
- Section for Infectious Diseases, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
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50
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Joseph U, Vijaykrishna D, Smith GJD, Su YCF. Adaptive evolution during the establishment of European avian-like H1N1 influenza A virus in swine. Evol Appl 2017; 11:534-546. [PMID: 29636804 PMCID: PMC5891058 DOI: 10.1111/eva.12536] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 08/15/2017] [Indexed: 12/23/2022] Open
Abstract
An H1N1 subtype influenza A virus with all eight gene segments derived from wild birds (including mallards), ducks and chickens, caused severe disease outbreaks in swine populations in Europe beginning in 1979 and successfully adapted to form the European avian‐like swine (EA‐swine) influenza lineage. Genes of the EA‐swine lineage that are clearly segregated from its closest avian relatives continue to circulate in swine populations globally and represent a unique opportunity to study the adaptive process of an avian‐to‐mammalian cross‐species transmission. Here, we used a relaxed molecular clock model to test whether the EA‐swine virus originated through the introduction of a single avian ancestor as an entire genome, followed by an analysis of host‐specific selection pressures among different gene segments. Our data indicated independent introduction of gene segments via transmission of avian viruses into swine followed by reassortment events that occurred at least 1–4 years prior to the EA‐swine outbreak. All EA‐swine gene segments exhibit greater selection pressure than avian viruses, reflecting both adaptive pressures and relaxed selective constraints that are associated with host switching. Notably, we identified key amino acid mutations in the viral surface proteins (H1 and N1) that play a role in adaptation to new hosts. Following the establishment of EA‐swine lineage, we observed an increased frequency of intrasubtype reassortment of segments compared to the earlier strains that has been associated with adaptive amino acid replacements, disease severity and vaccine escape. Taken together, our study provides key insights into the adaptive changes in viral genomes following the transmission of avian influenza viruses to swine and the early establishment of the EA‐swine lineage.
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Affiliation(s)
- Udayan Joseph
- Programme in Emerging Infectious Diseases Duke-NUS Medical School Singapore
| | - Dhanasekaran Vijaykrishna
- Programme in Emerging Infectious Diseases Duke-NUS Medical School Singapore.,Department of Microbiology Biomedicine Discovery Institute Monash University Melbourne Vic. Australia
| | - Gavin J D Smith
- Programme in Emerging Infectious Diseases Duke-NUS Medical School Singapore.,Duke Global Health Institute Duke University Durham NC USA
| | - Yvonne C F Su
- Programme in Emerging Infectious Diseases Duke-NUS Medical School Singapore
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