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  • Title: [Abiotrophia related endocarditis: contribution of molecular biology].
    Author: Boutoille D, Reynaud AE, Leautez S, Ponge T, Raffi F.
    Journal: Presse Med; 1999 Dec 11; 28(39):2149-51. PubMed ID: 10629690.
    Abstract:
    BACKGROUND: Former nutritionally-deficient (variant) streptococci were recently separated from other streptococci viridans to constitute a new Abiotrophia genus, subdivided into two species, Abiotrophia defectiva (ex-Streptococcus defectivus) and Abiotrophia adjacens (ex-Streptococcus adjacens). CASE REPORT: A woman was admitted to the hospital because of purpura and fever. Vegetations were shown by trans-esophageal echocardiography. Although blood samples were positive within 24 hours, accurate identification of the morphologically and biochemically streptococcus-like bacteria that had grown remained impossible. Molecular biology technicals permitted to identify Abiotrophia defectiva, ex-Streptococcus defectivus. DISCUSSION: This new genus is important to be identified in clinical practice, because of the increased virulence of these bacteria, when compared with Streptococci viridans. They are also frequently penicillin-resistant. Molecular biology technicals allow precocious diagnosis, and make possible the improvement of the prognosis.
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