No abstract available
Keywords:
SARS-CoV-2; common cold; winter.
MeSH terms
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Adolescent
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Age Factors
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Child
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Child, Preschool
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Coronavirus / classification
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Coronavirus / genetics
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Coronavirus / isolation & purification*
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Coronavirus Infections / diagnosis
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Coronavirus Infections / epidemiology*
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Coronavirus Infections / virology*
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Female
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Humans
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Incidence
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Infant
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Japan / epidemiology
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Longitudinal Studies
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Male
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Seasons