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Erwinia Species bei letaler Neugeborenensepsis

Erwinia species causing fatal septicaemia in a newborn

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Abstract

The repetitive isolation of anErwinia species in pure culture from blood and CSF and post mortem from the lungs of a newborn child with fulminant septicaemia is reported. The air-borne infection was transferred by contaminated respiration equipment, from which the microorganism was also isolated. In addition, the sameErwinia strain was found in the hospital environment. Plants were considered to be the primary source of the infective agent.

The morphological, physiological and biochemical characteristics of six cultures of theErwinia species were examined. Criteria allowing identification and differential diagnosis against other Enterobacteriaceae were the inability to decarboxylate amino acids, the absence of H2S and indol production, the gelatin liquefaction, albeit delayed, and the production of a yellow, water-insoluble pigment.

As it is obvious thatErwinia spp. can be pathogenic to man, although they generally attack plants they should receive the same attention as other potential human pathogens in hospital hygiene.

Zusammenfassung

Bei einem Neugeborenen mit foudroyanter Sepsis wurde wiederholt aus Blut, Liquor undpost mortem aus den Lungen eineErwinia Species in Reinkultur isoliert. Die Infektion erfolgte über ein kontaminiertes Beatmungsgerät, an dem ebenso wie im Klinikbereich der gleicheErwinia Stamm nachgewiesen wurde. Als Herkunftsort der Infektionserreger kommen in erster Linie Pflanzen in Frage.

Die morphologischen, physiologischen und biochemischen Merkmale von sechs Kulturen derErwinia Species wurden untersucht. Als kennzeichnende Kriterien zur Identifikation und Differentialdiagnose gegen andere Enterobacteriaceae erwiesen sich das Fehlen von Aminosäuredecarboxylasen sowie H2S — und Indolbildung, die — wenn auch verzögerte — Gelatineverflüssigung und die Produktion eines gelben wasserunlöslichen Pigmentes.

DaErwinia spp. offensichtlich für Menschen pathogen sein können, verdienen diese im allgemeinen pflanzenpathogenen Bakterien krankenhaushygienisch die gleiche Beachtung wie andere fakultativ humanpathogene Infektionserreger.

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Ansorg, R., Thomssen, R. & Stubbe, P. Erwinia Species bei letaler Neugeborenensepsis. Med Microbiol Immunol 159, 161–170 (1974). https://doi.org/10.1007/BF02123729

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  • DOI: https://doi.org/10.1007/BF02123729

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