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  1. Article ; Online: Why are vaccines against many human viral diseases still unavailable; an historic perspective?

    Tannock, Gregory A / Kim, Hyunsuh / Xue, Lumin

    Journal of medical virology

    2019  Volume 92, Issue 2, Page(s) 129–138

    Abstract: The number of new and improved human viral vaccines licensed in recent years contrasts sharply with what could be termed the golden era (1955-1990) when vaccines against polio-, measles, mumps, rubella, and hepatitis B viruses first became available. ... ...

    Abstract The number of new and improved human viral vaccines licensed in recent years contrasts sharply with what could be termed the golden era (1955-1990) when vaccines against polio-, measles, mumps, rubella, and hepatitis B viruses first became available. Here, we attempt to explain why vaccines, mainly against viruses other than human immunodeficiency virus and hepatitis C virus, are still unavailable. They include human herpesviruses other than varicella-zoster virus, respiratory syncytial and most other respiratory, enteric and arthropod-borne viruses. Improved oral poliovirus vaccines are also urgently required. Their unavailability is attributable to regulatory/economic factors and the properties of individual viruses, but also to an absence of relevant animal models and ethical problems for the conduct of clinical of trials in pediatric and other critical populations. All are portents of likely difficulties for the licensing of effective vaccines against emerging pathogens, such as avian influenza, Ebola, and Zika viruses.
    MeSH term(s) Animals ; Antibodies, Viral ; Chickenpox Vaccine/immunology ; Clinical Trials as Topic/ethics ; Dengue Vaccines/immunology ; Disease Models, Animal ; Ebola Vaccines/immunology ; Humans ; Influenza Vaccines/immunology ; Measles-Mumps-Rubella Vaccine/immunology ; Poliovirus Vaccine, Oral/immunology ; Rotavirus Vaccines/immunology ; Viral Vaccines/economics ; Viral Vaccines/immunology ; Viral Vaccines/supply & distribution ; Virus Diseases/prevention & control ; Zika Virus/immunology
    Chemical Substances Antibodies, Viral ; Chickenpox Vaccine ; Dengue Vaccines ; Ebola Vaccines ; Influenza Vaccines ; Measles-Mumps-Rubella Vaccine ; Poliovirus Vaccine, Oral ; Rotavirus Vaccines ; Viral Vaccines
    Keywords covid19
    Language English
    Publishing date 2019-10-03
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 752392-0
    ISSN 1096-9071 ; 0146-6615
    ISSN (online) 1096-9071
    ISSN 0146-6615
    DOI 10.1002/jmv.25593
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Influenza Virus: Dealing with a Drifting and Shifting Pathogen.

    Kim, Hyunsuh / Webster, Robert G / Webby, Richard J

    Viral immunology

    2018  Volume 31, Issue 2, Page(s) 174–183

    Abstract: Numerous modern technological and scientific advances have changed the vaccine industry. However, nearly 70 years of influenza vaccine usage have passed without substantial changes in the underlying principles of the vaccine. The challenge of vaccinating ...

    Abstract Numerous modern technological and scientific advances have changed the vaccine industry. However, nearly 70 years of influenza vaccine usage have passed without substantial changes in the underlying principles of the vaccine. The challenge of vaccinating against influenza lies in the constantly changing nature of the virus itself. Influenza viruses undergo antigenic evolution through antigenic drift and shift in their surface glycoproteins. This has forced frequent updates of vaccine antigens to ensure that the somewhat narrowly focused vaccine-induced immune responses defend against circulating strains. Few vaccine production systems have been developed that can entertain such constant changes. Although influenza virus infection induces long-lived immunologic memory to the same or similar strains, most people do not encounter the same strain repeatedly in their lifespan, suggesting that enhancement of natural immunity is required to improve influenza vaccines. It is clear that transformative change of influenza vaccines requires a rethink of how we immunize. In this study, we review the problems associated with the changing nature of the virus, and highlight some of the approaches being employed to improve influenza vaccines.
    MeSH term(s) Antigenic Variation ; Disease Transmission, Infectious ; Evolution, Molecular ; Genetic Drift ; Humans ; Influenza Vaccines/administration & dosage ; Influenza Vaccines/immunology ; Influenza Vaccines/isolation & purification ; Influenza, Human/epidemiology ; Influenza, Human/prevention & control ; Influenza, Human/virology ; Orthomyxoviridae/genetics ; Orthomyxoviridae/immunology ; Technology, Pharmaceutical/methods
    Chemical Substances Influenza Vaccines
    Language English
    Publishing date 2018-01-26
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 639075-4
    ISSN 1557-8976 ; 0882-8245
    ISSN (online) 1557-8976
    ISSN 0882-8245
    DOI 10.1089/vim.2017.0141
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: HA stabilization promotes replication and transmission of swine H1N1 gamma influenza viruses in ferrets

    Meng Hu / Guohua Yang / Jennifer DeBeauchamp / Jeri Carol Crumpton / Hyunsuh Kim / Lei Li / Xiu-Feng Wan / Lisa Kercher / Andrew S Bowman / Robert G Webster / Richard J Webby / Charles J Russell

    eLife, Vol

    2020  Volume 9

    Abstract: Pandemic influenza A viruses can emerge from swine, an intermediate host that supports adaptation of human-preferred receptor-binding specificity by the hemagglutinin (HA) surface antigen. Other HA traits necessary for pandemic potential are poorly ... ...

    Abstract Pandemic influenza A viruses can emerge from swine, an intermediate host that supports adaptation of human-preferred receptor-binding specificity by the hemagglutinin (HA) surface antigen. Other HA traits necessary for pandemic potential are poorly understood. For swine influenza viruses isolated in 2009–2016, gamma-clade viruses had less stable HA proteins (activation pH 5.5–5.9) than pandemic clade (pH 5.0–5.5). Gamma-clade viruses replicated to higher levels in mammalian cells than pandemic clade. In ferrets, a model for human adaptation, a relatively stable HA protein (pH 5.5–5.6) was necessary for efficient replication and airborne transmission. The overall airborne transmission frequency in ferrets for four isolates tested was 42%, and isolate G15 airborne transmitted 100% after selection of a variant with a stabilized HA. The results suggest swine influenza viruses containing both a stabilized HA and alpha-2,6 receptor binding in tandem pose greater pandemic risk. Increasing evidence supports adding HA stability to pre-pandemic risk assessment algorithms.
    Keywords influenza A virus ; swine viruses ; viral fusion protein ; virus transmissibility ; virus adaptation ; Medicine ; R ; Science ; Q ; Biology (General) ; QH301-705.5
    Language English
    Publishing date 2020-06-01T00:00:00Z
    Publisher eLife Sciences Publications Ltd
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: HA stabilization promotes replication and transmission of swine H1N1 gamma influenza viruses in ferrets.

    Hu, Meng / Yang, Guohua / DeBeauchamp, Jennifer / Crumpton, Jeri Carol / Kim, Hyunsuh / Li, Lei / Wan, Xiu-Feng / Kercher, Lisa / Bowman, Andrew S / Webster, Robert G / Webby, Richard J / Russell, Charles J

    eLife

    2020  Volume 9

    Abstract: Pandemic influenza A viruses can emerge from swine, an intermediate host that supports adaptation of human-preferred receptor-binding specificity by the hemagglutinin (HA) surface antigen. Other HA traits necessary for pandemic potential are poorly ... ...

    Abstract Pandemic influenza A viruses can emerge from swine, an intermediate host that supports adaptation of human-preferred receptor-binding specificity by the hemagglutinin (HA) surface antigen. Other HA traits necessary for pandemic potential are poorly understood. For swine influenza viruses isolated in 2009-2016, gamma-clade viruses had less stable HA proteins (activation pH 5.5-5.9) than pandemic clade (pH 5.0-5.5). Gamma-clade viruses replicated to higher levels in mammalian cells than pandemic clade. In ferrets, a model for human adaptation, a relatively stable HA protein (pH 5.5-5.6) was necessary for efficient replication and airborne transmission. The overall airborne transmission frequency in ferrets for four isolates tested was 42%, and isolate G15 airborne transmitted 100% after selection of a variant with a stabilized HA. The results suggest swine influenza viruses containing both a stabilized HA and alpha-2,6 receptor binding in tandem pose greater pandemic risk. Increasing evidence supports adding HA stability to pre-pandemic risk assessment algorithms.
    MeSH term(s) Animals ; Ferrets ; Hemagglutinin Glycoproteins, Influenza Virus/genetics ; Hemagglutinin Glycoproteins, Influenza Virus/metabolism ; Influenza A Virus, H1N1 Subtype/physiology ; Orthomyxoviridae Infections/veterinary ; Orthomyxoviridae Infections/virology
    Chemical Substances Hemagglutinin Glycoproteins, Influenza Virus
    Language English
    Publishing date 2020-06-30
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2687154-3
    ISSN 2050-084X ; 2050-084X
    ISSN (online) 2050-084X
    ISSN 2050-084X
    DOI 10.7554/eLife.56236
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Antibody Responses to SARS-CoV-2 Antigens in Humans and Animals.

    Kim, Hyunsuh / Seiler, Patrick / Jones, Jeremy C / Ridout, Granger / Camp, Kristi P / Fabrizio, Thomas P / Jeevan, Trushar / Miller, Lance A / Throm, Robert E / Ferrara, Francesca / Fredrickson, Richard L / Lowe, James F / Wang, Leyi / Odemuyiwa, Solomon O / Wan, Xiu-Feng / Webby, Richard J

    Vaccines

    2020  Volume 8, Issue 4

    Abstract: To optimize the public health response to coronavirus disease 2019 (COVID-19), we must first understand the antibody response to individual proteins on the severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) and the antibody's cross ... ...

    Abstract To optimize the public health response to coronavirus disease 2019 (COVID-19), we must first understand the antibody response to individual proteins on the severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) and the antibody's cross reactivity to other coronaviruses. Using a panel of 37 convalescent COVID-19 human serum samples, we showed that the magnitude and specificity of responses varied across individuals, independent of their reactivity to seasonal human coronaviruses (HCoVs). These data suggest that COVID-19 vaccines will elicit primary humoral immune responses in naïve individuals and variable responses in those previously exposed to SARS-CoV-2. Unlike the limited cross-coronavirus reactivities in humans, serum samples from 96 dogs and 10 cats showed SARS-CoV-2 protein-specific responses focused on non-S1 proteins. The correlation of this response with those to other coronaviruses suggests that the antibodies are cross-reactive and generated to endemic viruses within these hosts, which must be considered in seroepidemiologic studies. We conclude that substantial variation in antibody generation against coronavirus proteins will influence interpretations of serologic data in the clinical and veterinary settings.
    Keywords covid19
    Language English
    Publishing date 2020-11-16
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2703319-3
    ISSN 2076-393X
    ISSN 2076-393X
    DOI 10.3390/vaccines8040684
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Cold adaptation generates mutations associated with the growth of influenza B vaccine viruses.

    Kim, Hyunsuh / Velkov, Tony / Camuglia, Sarina / Rockman, Steven P / Tannock, Gregory A

    Vaccine

    2015  Volume 33, Issue 43, Page(s) 5786–5793

    Abstract: Seasonal inactivated influenza vaccines are usually trivalent or quadrivalent and are prepared from accredited seed viruses. Yields of influenza A seed viruses can be enhanced by gene reassortment with high-yielding donor strains, but similar approaches ... ...

    Abstract Seasonal inactivated influenza vaccines are usually trivalent or quadrivalent and are prepared from accredited seed viruses. Yields of influenza A seed viruses can be enhanced by gene reassortment with high-yielding donor strains, but similar approaches for influenza B seed viruses have been largely unsuccessful. For vaccine manufacture influenza B seed viruses are usually adapted for high-growth by serial passage. Influenza B antigen yields so obtained are often unpredictable and selection of influenza B seed viruses by this method can be a rate-limiting step in seasonal influenza vaccine manufacture. We recently have shown that selection of stable cold-adapted mutants from seasonal epidemic influenza B viruses is associated with improved growth. In this study, specific mutations were identified that were responsible for growth enhancement as a consequence of adaptation to growth at lower temperatures. Molecular analysis revealed that the following mutations in the HA, NP and NA genes are required for enhanced viral growth: G156/N160 in the HA, E253, G375 in the NP and T146 in the NA genes. These results demonstrate that the growth of seasonal influenza B viruses can be optimized or improved significantly by specific gene modifications.
    MeSH term(s) Adaptation, Biological ; Animals ; Cold Temperature ; Dogs ; Hemagglutinin Glycoproteins, Influenza Virus/genetics ; Influenza B virus/genetics ; Influenza B virus/growth & development ; Influenza B virus/radiation effects ; Madin Darby Canine Kidney Cells ; Mutation, Missense ; Neuraminidase/genetics ; Point Mutation ; Viral Core Proteins/genetics ; Viral Proteins/genetics ; Virus Cultivation/methods
    Chemical Substances Hemagglutinin Glycoproteins, Influenza Virus ; Viral Core Proteins ; Viral Proteins ; nucleoprotein, influenza B virus ; NA protein, influenza B virus (EC 3.2.1.18) ; Neuraminidase (EC 3.2.1.18)
    Language English
    Publishing date 2015-10-26
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 605674-x
    ISSN 1873-2518 ; 0264-410X
    ISSN (online) 1873-2518
    ISSN 0264-410X
    DOI 10.1016/j.vaccine.2015.09.038
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Cold adaptation generates mutations associated with the growth of influenza B vaccine viruses

    Kim, Hyunsuh / Gregory A. Tannock / Sarina Camuglia / Steven P. Rockman / Tony Velkov

    Vaccine. 2015 Oct. 26, v. 33, no. 43

    2015  

    Abstract: Seasonal inactivated influenza vaccines are usually trivalent or quadrivalent and are prepared from accredited seed viruses. Yields of influenza A seed viruses can be enhanced by gene reassortment with high-yielding donor strains, but similar approaches ... ...

    Abstract Seasonal inactivated influenza vaccines are usually trivalent or quadrivalent and are prepared from accredited seed viruses. Yields of influenza A seed viruses can be enhanced by gene reassortment with high-yielding donor strains, but similar approaches for influenza B seed viruses have been largely unsuccessful. For vaccine manufacture influenza B seed viruses are usually adapted for high-growth by serial passage. Influenza B antigen yields so obtained are often unpredictable and selection of influenza B seed viruses by this method can be a rate-limiting step in seasonal influenza vaccine manufacture. We recently have shown that selection of stable cold-adapted mutants from seasonal epidemic influenza B viruses is associated with improved growth. In this study, specific mutations were identified that were responsible for growth enhancement as a consequence of adaptation to growth at lower temperatures. Molecular analysis revealed that the following mutations in the HA, NP and NA genes are required for enhanced viral growth: G156/N160 in the HA, E253, G375 in the NP and T146 in the NA genes. These results demonstrate that the growth of seasonal influenza B viruses can be optimized or improved significantly by specific gene modifications.
    Keywords antigens ; cold ; genes ; influenza ; Influenza B virus ; manufacturing ; microbial growth ; mutants ; mutation ; temperature ; vaccines ; viruses
    Language English
    Dates of publication 2015-1026
    Size p. 5786-5793.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 605674-x
    ISSN 1873-2518 ; 0264-410X
    ISSN (online) 1873-2518
    ISSN 0264-410X
    DOI 10.1016/j.vaccine.2015.09.038
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: Cold adaptation improves the growth of seasonal influenza B vaccine viruses.

    Kim, Hyunsuh / Schoofs, Peter / Anderson, David A / Tannock, Gregory A / Rockman, Steven P

    Vaccine

    2014  Volume 32, Issue 21, Page(s) 2474–2479

    Abstract: Gene reassortment has proved useful in improving yields of influenza A antigens of egg-based inactivated vaccines, but similar approaches have been difficult with influenza B antigens. Current regulations for influenza vaccine seed viruses limit the ... ...

    Abstract Gene reassortment has proved useful in improving yields of influenza A antigens of egg-based inactivated vaccines, but similar approaches have been difficult with influenza B antigens. Current regulations for influenza vaccine seed viruses limit the number of egg passages and as a result resultant yields from influenza B vaccine seed viruses are frequently inconsistent. Therefore, reliable approaches to enhance yields of influenza B vaccine seed viruses are required for efficient vaccine manufacture. In the present study three stable cold-adapted (ca) mutants, caF, caM and caB derived from seasonal epidemic strains, B/Florida/4/2006, B/Malaysia/2506/2004 and B/Brisbane/60/2008 were prepared, which produced high hemagglutinin antigen yields and also increased viral yields of reassortants possessing the desired 6:2 gene constellation. The results demonstrate that consistent improvements in yields of influenza B viruses can be obtained by cold adaptation following extended passage. Taken together, the three ca viruses were shown to have potential as donor viruses for the preparation of high-yielding influenza B vaccine viruses by reassortment.
    MeSH term(s) Adaptation, Physiological ; Animals ; Chickens ; Cold Temperature ; Dogs ; Hemagglutination Inhibition Tests ; Hemagglutinin Glycoproteins, Influenza Virus/isolation & purification ; Influenza B virus/genetics ; Influenza B virus/growth & development ; Influenza Vaccines ; Madin Darby Canine Kidney Cells ; Ovum/virology ; Reassortant Viruses/genetics ; Reassortant Viruses/growth & development ; Serial Passage ; Virus Cultivation
    Chemical Substances Hemagglutinin Glycoproteins, Influenza Virus ; Influenza Vaccines
    Language English
    Publishing date 2014-05-01
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 605674-x
    ISSN 1873-2518 ; 0264-410X
    ISSN (online) 1873-2518
    ISSN 0264-410X
    DOI 10.1016/j.vaccine.2014.02.079
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Cold adaptation improves the growth of seasonal influenza B vaccine viruses

    Kim, Hyunsuh / David A. Anderson / Gregory A. Tannock / Peter Schoofs / Steven P. Rockman

    Vaccine. 2014 May 01, v. 32, no. 21

    2014  

    Abstract: Gene reassortment has proved useful in improving yields of influenza A antigens of egg-based inactivated vaccines, but similar approaches have been difficult with influenza B antigens. Current regulations for influenza vaccine seed viruses limit the ... ...

    Abstract Gene reassortment has proved useful in improving yields of influenza A antigens of egg-based inactivated vaccines, but similar approaches have been difficult with influenza B antigens. Current regulations for influenza vaccine seed viruses limit the number of egg passages and as a result resultant yields from influenza B vaccine seed viruses are frequently inconsistent. Therefore, reliable approaches to enhance yields of influenza B vaccine seed viruses are required for efficient vaccine manufacture. In the present study three stable cold-adapted (ca) mutants, caF, caM and caB derived from seasonal epidemic strains, B/Florida/4/2006, B/Malaysia/2506/2004 and B/Brisbane/60/2008 were prepared, which produced high hemagglutinin antigen yields and also increased viral yields of reassortants possessing the desired 6:2 gene constellation. The results demonstrate that consistent improvements in yields of influenza B viruses can be obtained by cold adaptation following extended passage. Taken together, the three ca viruses were shown to have potential as donor viruses for the preparation of high-yielding influenza B vaccine viruses by reassortment.
    Keywords antigens ; cold ; eggs ; genes ; hemagglutinins ; inactivated vaccines ; influenza ; Influenza B virus ; manufacturing ; mutants ; seasonal growth ; viruses
    Language English
    Dates of publication 2014-0501
    Size p. 2474-2479.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 605674-x
    ISSN 1873-2518 ; 0264-410X
    ISSN (online) 1873-2518
    ISSN 0264-410X
    DOI 10.1016/j.vaccine.2014.02.079
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: Antibody Responses to SARS-CoV-2 Antigens in Humans and Animals

    Hyunsuh Kim / Patrick Seiler / Jeremy C. Jones / Granger Ridout / Kristi P. Camp / Thomas P. Fabrizio / Trushar Jeevan / Lance A. Miller / Robert E. Throm / Francesca Ferrara / Richard L. Fredrickson / James F. Lowe / Leyi Wang / Solomon O. Odemuyiwa / Xiu-Feng Wan / Richard J. Webby

    Vaccines, Vol 8, Iss 684, p

    2020  Volume 684

    Abstract: To optimize the public health response to coronavirus disease 2019 (COVID-19), we must first understand the antibody response to individual proteins on the severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) and the antibody’s cross ... ...

    Abstract To optimize the public health response to coronavirus disease 2019 (COVID-19), we must first understand the antibody response to individual proteins on the severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) and the antibody’s cross reactivity to other coronaviruses. Using a panel of 37 convalescent COVID-19 human serum samples, we showed that the magnitude and specificity of responses varied across individuals, independent of their reactivity to seasonal human coronaviruses (HCoVs). These data suggest that COVID-19 vaccines will elicit primary humoral immune responses in naïve individuals and variable responses in those previously exposed to SARS-CoV-2. Unlike the limited cross-coronavirus reactivities in humans, serum samples from 96 dogs and 10 cats showed SARS-CoV-2 protein-specific responses focused on non–S1 proteins. The correlation of this response with those to other coronaviruses suggests that the antibodies are cross-reactive and generated to endemic viruses within these hosts, which must be considered in seroepidemiologic studies. We conclude that substantial variation in antibody generation against coronavirus proteins will influence interpretations of serologic data in the clinical and veterinary settings.
    Keywords SARS-CoV-2 ; COVID-19 ; respiratory viruses ; antibody ; vaccine ; Medicine ; R
    Subject code 572
    Language English
    Publishing date 2020-11-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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