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First report of bacteremia by Janibacter terrae in humans

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Abstract

The genus Janibacter comprises nine different species mainly found in the environment. Only two human infections by these microorganisms have been previously reported, one by J. melonis and another one by an undescribed Janibacter sp. Herewith we report the first human cases of infection by J. terrae in four bacteremic patients. The microorganisms were isolated from two consecutive blood cultures taken from four febrile patients with several underlying conditions. All patients were treated with antibiotics, two of them with favorable outcome. Two severely immunocompromised patients died, and one was treated with an antibiotic in vitro active against the isolate. Janibacter terrae was identified by phenotypic and 16S rDNA amplification methods. This report includes also the first data on antimicrobial susceptibility of this opportunistic pathogen. Clinical microbiologists should be aware of this microorganism which can be identified by phenotypic and molecular methods.

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Acknowledgments

Part of this study has been supported by the Gerencia Regional de Salud, Junta de Castilla y León, Spain. Research project GRS 698/A/2011.

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No conflict of interest.

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Authors and Affiliations

  1. Department of Clinical Microbiology, Complejo Asistencial Universitario de León, calle Altos de Nava, s/n, 24080, León, Spain

    M. I. Fernández-Natal & R. H. Rodríguez-Pollán

  2. Institute of Biomedicine (IBIOMED), León, Spain

    M. I. Fernández-Natal

  3. Bacterial Taxonomy Laboratory, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain

    J. A. Sáez-Nieto, M. J. Medina-Pascual & S. Valdezate-Ramos

  4. Department of Internal Medicine, Complejo Asistencial Universitario de León, León, Spain

    J. M. Guerra-Laso

  5. Public Health, School of Physiotherapy ONCE, Madrid, Spain

    F. Soriano

Authors
  1. M. I. Fernández-Natal
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  2. J. A. Sáez-Nieto
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  3. M. J. Medina-Pascual
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  4. S. Valdezate-Ramos
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  5. J. M. Guerra-Laso
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  6. R. H. Rodríguez-Pollán
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  7. F. Soriano
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Corresponding author

Correspondence to M. I. Fernández-Natal.

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Fernández-Natal, M.I., Sáez-Nieto, J.A., Medina-Pascual, M.J. et al. First report of bacteremia by Janibacter terrae in humans. Infection 43, 103–106 (2015). https://doi.org/10.1007/s15010-014-0672-7

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  • DOI: https://doi.org/10.1007/s15010-014-0672-7

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