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Related Experiment Videos

Simultaneous infection with Blastomyces dermatitidis and Cryptococcus neoformans

A Mounts1, G S Deepe

  • 1Division of Infectious Diseases, University of Cincinnati College of Medicine, Cincinnati, Ohio 45267-0560, USA.

Medical Mycology
|October 20, 1998
PubMed
Summary

This report details two rare cases of simultaneous fungal infections by Blastomyces dermatitidis and Cryptococcus neoformans in the lungs. These co-infections presented unusually, even in an immunocompromised patient.

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Area of Science:

  • Mycology
  • Infectious Diseases
  • Immunology

Background:

  • Simultaneous fungal infections are uncommon, particularly involving distinct pathogenic species.
  • Blastomyces dermatitidis and Cryptococcus neoformans are geographically and clinically distinct fungal pathogens.

Observation:

  • Two cases of co-infection with Blastomyces dermatitidis and Cryptococcus neoformans were identified.
  • Fungal isolates were recovered from the pulmonary system in both patients.
  • Clinical presentations did not initially suggest dual fungal infections.

Findings:

  • This represents the first reported co-infection of Blastomyces dermatitidis and Cryptococcus neoformans in medical literature.
  • One patient had received immunosuppressive therapy, while the other was immunocompetent, indicating varied host susceptibility.

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  • Mechanisms for the simultaneous isolation of these two pathogens are explored.

    • Implications:

    • Highlights the potential for co-infection with geographically disparate fungi, challenging diagnostic assumptions.
    • Suggests a need for broader fungal pathogen screening in complex pulmonary infections.
    • Informs understanding of fungal pathogenesis and host-pathogen interactions in immunocompromised and immunocompetent individuals.