No abstract available
MeSH terms
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Antibodies, Viral / blood*
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Exanthema Subitum / epidemiology*
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Herpesviridae Infections / epidemiology*
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Herpesvirus 6, Human / immunology*
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Humans
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Immunity, Maternally-Acquired
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Infant
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Infant, Newborn
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Prospective Studies
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Risk Factors