Abstract
We assessed whether influenza virus hemagglutinin stalk-based immunity protects ferrets against aerosol-transmitted H1N1 influenza virus infection. Immunization of ferrets by a universal influenza virus vaccine strategy based on viral vectors expressing chimeric hemagglutinin constructs induced stalk-specific antibody responses. Stalk-immunized ferrets were cohoused with H1N1-infected ferrets under conditions that permitted virus transmission. Hemagglutinin stalk-immunized ferrets had lower viral titers and delayed or no virus replication at all following natural exposure to influenza virus.
Copyright © 2016, American Society for Microbiology. All Rights Reserved.
Publication types
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Research Support, N.I.H., Extramural
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Animals
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Disease Models, Animal
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Disease Transmission, Infectious / prevention & control*
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Ferrets
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Hemagglutinin Glycoproteins, Influenza Virus / immunology*
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Influenza A Virus, H1N1 Subtype / immunology*
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Influenza A Virus, H1N1 Subtype / physiology
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Influenza Vaccines / administration & dosage
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Influenza Vaccines / immunology*
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Male
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Orthomyxoviridae Infections / prevention & control*
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Orthomyxoviridae Infections / transmission*
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Orthomyxoviridae Infections / virology
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Viral Load
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Virus Replication / immunology
Substances
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H1N1 virus hemagglutinin
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Hemagglutinin Glycoproteins, Influenza Virus
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Influenza Vaccines