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Updated: May 29, 2025

A Contemporary Warming/Restraining Device for Efficient Tail Vein Injections in a Murine Fungal Sepsis Model
Published on: November 6, 2020
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.
Abstract:
Invasive mold-associated cutaneous disease is a rare but potentially catastrophic consequence of trauma. However, invertebrate bites are not well recognized as a mechanism for the inoculation of fungi into subcutaneous tissue that can also result in severe infections. Invertebrates often carry fungi with human pathogenic potential as part of their microbiome, and bites break the skin, providing a conduit for them to penetrate subcutaneous tissues where the establishment of infection can produce serious skin and soft tissue fungal diseases. In this essay, we review the existing data for invertebrate bite-associated cutaneous invasive fungal infections (IBA-cIFIs) and consider the potential consequences of global warming on their epidemiology. Climate changes will be associated with changes in the range of invertebrates and adaptation of their associated microbes to warmer temperatures. Fungal adaptation to higher temperatures can defeat the mammalian protective barrier and be associated with both more and different IBA-cIFIs.
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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