Endocarditis caused by nonhemolytic group B streptococcus

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Endocarditis caused by nonhemolytic group B streptococcus.

We report a case of bacterial endocarditis caused by nonhemolytic group B streptococcus (GBS) in a 67-year-old man with no predisposing risk factors. Nonhemolytic GBS strains rarely cause illness and are usually detected in perinatal infections. We believe this to be the first reported case of endocarditis caused by a nonhemolytic strain of GBS.

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A nontypeable blood isolate of group B streptococci (GBS) from a patient with endocarditis is suggested to be the nonencapsulated phase of a GBS strain, type III. From the original high-density isolate, a low-density, encapsulated phase was selected by Percoll gradient centrifugation. This phenomenon should be considered before a GBS strain is classified as truly nontypeable.

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Meningitis and endocarditis caused by group B streptococcus in a human immunodeficiency virus (HIV) infected patient.

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ژورنال

عنوان ژورنال: Journal of Clinical Microbiology

سال: 1997

ISSN: 0095-1137,1098-660X

DOI: 10.1128/jcm.35.6.1616-1617.1997