No abstract available
MeSH terms
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Adolescent
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Antibodies, Viral / biosynthesis*
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Clinical Trials as Topic
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Hemagglutination Inhibition Tests
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Humans
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Influenza Vaccines*
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Influenza, Human / immunology
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Influenza, Human / transmission*
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Male
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Orthomyxoviridae / isolation & purification*
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Placebos
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Vaccines, Attenuated*
Substances
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Antibodies, Viral
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Influenza Vaccines
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Placebos
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Vaccines, Attenuated