No abstract available
MeSH terms
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Adolescent
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Carrier State / epidemiology
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Carrier State / microbiology*
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Child
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Child, Preschool
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Drug Resistance, Microbial
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Humans
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Infant
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Infant, Newborn
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Nasopharynx / microbiology*
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Pneumococcal Infections / epidemiology*
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Pneumococcal Infections / microbiology*
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Streptococcus pneumoniae / drug effects
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Streptococcus pneumoniae / growth & development*
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Streptococcus pneumoniae / immunology
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Streptococcus pneumoniae / isolation & purification