No abstract available
MeSH terms
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Child Day Care Centers*
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Child, Preschool
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Diarrhea / microbiology
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Disease Outbreaks
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Escherichia coli Infections / microbiology*
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Escherichia coli Infections / prevention & control
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Escherichia coli Infections / transmission*
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Escherichia coli O157* / isolation & purification
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Feces / microbiology*
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Humans
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Infection Control / methods
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Time Factors