No abstract available
MeSH terms
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Communicable Diseases, Emerging / epidemiology*
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Corynebacterium diphtheriae / isolation & purification
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Developing Countries
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Diphtheria / epidemiology*
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Diphtheria / prevention & control
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Disease Outbreaks / prevention & control
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Disease Outbreaks / statistics & numerical data*
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Humans
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Population Surveillance
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Travel
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Yemen