No abstract available
MeSH terms
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Carrier State / epidemiology
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Haemophilus influenzae / isolation & purification*
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Humans
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Infant
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Moraxella catarrhalis / isolation & purification*
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Nasopharynx / microbiology*
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Prevalence
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Pseudomonas aeruginosa / isolation & purification*
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Streptococcus pneumoniae / isolation & purification*