Abstract
The beta-hemolysin of Streptococcus agalactiae is a major virulence factor; consequently, nonhemolytic strains rarely cause infections. We report on a case of neonatal sepsis caused by a strain displaying heterogeneous hemolysin expression. It was detected by the simultaneous isolation of hemolytic and nonhemolytic colonies from cultures of the infant's blood.
MeSH terms
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ATP-Binding Cassette Transporters / genetics
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Antigens, Bacterial / analysis
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Bacterial Proteins / analysis
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Bacterial Proteins / genetics
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Bacterial Proteins / physiology
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Bacterial Typing Techniques
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DNA Transposable Elements
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DNA, Bacterial
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Genotype
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Hemolysin Proteins / biosynthesis*
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Hemolysin Proteins / genetics
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Hemolysis / genetics
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Hemolysis / physiology*
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Humans
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Infant, Newborn
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Membrane Proteins / analysis
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Polymerase Chain Reaction
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Sepsis / microbiology*
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Serotyping
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Streptococcal Infections / microbiology*
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Streptococcus agalactiae / isolation & purification*
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Streptococcus agalactiae / physiology*
Substances
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ATP-Binding Cassette Transporters
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Antigens, Bacterial
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Bacterial Proteins
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DNA Transposable Elements
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DNA, Bacterial
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Hemolysin Proteins
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Membrane Proteins
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Rib protein, Streptococcus agalactiae