Would global warming bring an increase of invertebrate-associated cutaneous invasive fungal infections?

Dimitrios P Kontoyiannis1, Arturo Casadevall2

  • 1Department of Infectious Diseases, Infection Control and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.

Mbio
|February 5, 2025
PubMed

Insights

Invertebrate bites can introduce fungi, causing rare but severe skin infections. Global warming may increase the risk and types of these invasive fungal infections.

Area of Science:

  • Medical Mycology
  • Infectious Diseases
  • Dermatology

Background:

  • Invasive mold-associated cutaneous disease is a rare complication of trauma.
  • Invertebrate bites are an underrecognized route for fungal inoculation into subcutaneous tissues.
  • Invertebrates harbor pathogenic fungi, and bites breach the skin barrier, facilitating infection.

Purpose of the Study:

  • To review existing data on invertebrate bite-associated cutaneous invasive fungal infections (IBA-cIFIs).
  • To explore the potential impact of global warming on the epidemiology of IBA-cIFIs.

Main Methods:

  • Literature review of case reports and studies on IBA-cIFIs.
  • Analysis of the role of invertebrate microbiomes in fungal transmission.
  • Consideration of climate change effects on invertebrate and fungal adaptation.

Main Results:

  • Invertebrate bites can lead to serious skin and soft tissue fungal diseases.
  • Climate change may alter the geographic distribution of invertebrates and their associated fungi.
  • Warmer temperatures can enhance fungal adaptation, potentially overcoming mammalian defenses.

Conclusions:

  • Invertebrate bites represent a significant, though often overlooked, pathway for cutaneous fungal infections.
  • Global warming is predicted to influence the incidence and nature of IBA-cIFIs.
  • Fungal adaptation to rising temperatures poses a growing threat for invasive infections.

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