No abstract available
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Antibodies, Bacterial / biosynthesis*
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Antigens, Bacterial / immunology*
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Environmental Exposure
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Escherichia coli / immunology*
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Humans
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Immunoglobulin A, Secretory / biosynthesis*
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Infant
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Infant, Newborn
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O Antigens
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Pakistan
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Saliva / immunology
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Sweden
Substances
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Antibodies, Bacterial
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Antigens, Bacterial
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Immunoglobulin A, Secretory
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O Antigens