Summary
The rate of colonization by group B streptococci among Nigerian neonates in Abeokuta was found to be 19% (38 of 200 newborns). The recently described serotype IV was the commonest (35.1%) among the strains isolated. Three methods for the rapid detection of heavy colonization by group B streptococci in neonates were compared: Gram stain of the pharyngeal aspirate collected immediately post-partum; direct application of latex agglutination to the first post-partum pharyngeal aspirate; and application of latex agglutination to selective Todd Hewitt broth, inoculated with pharyngeal aspirate and body swabs, after five hours of incubation. It seems that both latex agglutination methods can rapidly detect a considerable proportion of neonates heavily contaminated with group B streptococci intra-partum; therefore both methods deserve further evaluation.
Zusammenfassung
Die Besiedelungsrate nigerianischer Neugeborener mit Gruppe-B-Streptokokken betrug in Abeokuta 19% (38 von 200 Neugeborenen). Unter den Isolaten war der erst seit kurzem bekannte Serotyp IV der häufigste (35,1%). Drei Methoden zur Früherkennung der intensiven Besiedelung Neugeborener mit GBS wurden verglichen: Gramfärbung des gleich nach der Geburt abgesaugten Rachensekretes; direkte Anwendung eines Latex-Testes an diesem Rachensekret; Anwendung des Latex-Testes an selektiver Todd-Hewitt-Bouillon, die mit Rachensekret bzw. mit Körperabstrichen beimpft und fünf Stunden bebrütet worden war. Beide Latex-Methoden scheinen in der Lage zu sein, frühzeitig einen erheblichen Anteil der Neugeborenen zu erkennen, die während der Geburt intensiv mit Gruppe-B-Streptokokken kontaminiert wurden. Beide Methoden sollten deshalb ausführlicher evaluiert werden.
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Hoppe, J.E., Grieshaber, J. & Höfler, W. Colonization of Nigerian neonates with group B streptococci and its rapid detection. Infection 14, 74–78 (1986). https://doi.org/10.1007/BF01644447
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DOI: https://doi.org/10.1007/BF01644447