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Fusarium: The versatile pathogen.

Ananya Tupaki-Sreepurna1, Anupma Jyoti Kindo1

  • 1Department of Microbiology, Sri Ramachandra Medical College and Research Institute, Sri Ramachandra University, Porur, Chennai, Tamil Nadu, India.

Indian Journal of Medical Microbiology
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Summary

Fusarium is an emerging opportunistic pathogen in immunocompromised patients, posing treatment challenges due to resistance. Early detection and prevention are crucial for managing invasive fusariosis in vulnerable populations.

Keywords:
Amphotericin BFusariumkeratitismultilocus sequence typingopportunistic fungivoriconazole

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Area of Science:

  • Medical Mycology
  • Infectious Diseases
  • Clinical Microbiology

Background:

  • Fusarium is an emerging opportunistic human pathogen, particularly affecting immunosuppressed individuals.
  • Disseminated Fusarium infections have increased over the past two decades, linked to medical advancements.
  • The genus is challenging to treat due to mycotoxin production, enzymes, angio-invasiveness, and intrinsic resistance.

Purpose of the Study:

  • To review the current literature on Fusarium as an opportunistic pathogen.
  • To highlight the diagnostic and therapeutic challenges associated with invasive fusariosis.
  • To emphasize the importance of prevention and antifungal prophylaxis in high-risk patients.

Main Methods:

  • Literature review of PubMed and Google Scholar.
  • Search terms included 'Fusarium', 'opportunistic invasive fungi', and 'invasive fusariosis'.
  • Summarized existing knowledge on Fusarium epidemiology, diagnostics, and treatment.

Main Results:

  • Fusarium is isolated from various sites, including cornea, skin, blood, and fluids.
  • Accurate species identification requires multilocus sequence typing beyond conventional microscopy.
  • Effective treatments involve immune reconstitution and species-specific antifungals like liposomal amphotericin-B and voriconazole.

Conclusions:

  • Predicting patient outcomes for invasive fusariosis remains difficult, even with in vitro susceptibility data.
  • Vigilant healthcare workers must prioritize prevention and antifungal prophylaxis for at-risk patients.
  • Continued research is needed to improve the management of invasive Fusarium infections.