Freshwater Fungal Infections

Dennis J Baumgardner1

  • 1Aurora University of Wisconsin Medical Group, Aurora Health Care, Milwaukee, WI; Department of Family and Community Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI; Center for Urban Population Health, Milwaukee, WI.

Insights

Freshwater exposure can cause rare fungal infections like keratitis or otitis externa. Suspect fungal causes when bacterial treatments fail, especially after trauma or near-drowning incidents.

Area of Science:

  • Mycology
  • Infectious Diseases
  • Dermatology

Background:

  • Fungal infections from freshwater exposure or trauma are uncommon but can be caused by various agents, including filamentous fungi and Candida.
  • Potential exposure sources range from recreational water activities to traumatic injuries during natural disasters.

Purpose of the Study:

  • To review the spectrum of fungal infections associated with freshwater exposure.
  • To highlight clinical presentations, including common conditions like fungal keratitis and otitis externa, as well as rare deep-seated infections.
  • To provide guidance on suspecting fungal etiology in challenging cases.

Main Methods:

  • This is a narrative review.
  • Literature search on fungal infections related to freshwater exposure and trauma.
  • Synthesis of information on etiologic agents, exposure sources, and clinical manifestations.

Main Results:

  • Common infections include fungal keratitis, acute otitis externa, and tinea pedis.
  • Rare but severe infections can affect deep soft tissues, bone, lungs, or the central nervous system, particularly after trauma.
  • Fungal causes should be considered when bacterial infections do not respond to therapy or cultures are negative.

Conclusions:

  • Fungal infections following freshwater exposure are rare but diverse, ranging from superficial to life-threatening deep infections.
  • Early suspicion and appropriate diagnostic considerations are crucial for effective management.
  • This review underscores the importance of considering fungal pathogens in specific clinical contexts involving freshwater or trauma.

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