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Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
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Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
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Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
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Related Experiment Video

Updated: Jul 11, 2025

A Contrast of Three Inoculation Techniques used to Determine the Race of Unknown Fusarium oxysporum f.sp. niveum Isolates
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Invasive fusariosis.

Marcio Nucci1,2, Elias Anaissie3

  • 1University Hospital, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.

Clinical Microbiology Reviews
|November 8, 2023
PubMed
Summary
This summary is machine-generated.

Invasive fusariosis is a severe fungal infection impacting both healthy and immunocompromised individuals. Patient recovery hinges on managing the underlying immunosuppression, particularly neutrophil recovery in neutropenic patients.

Keywords:
Fusariumfungal infectionfusariosisimmunocompromised

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Area of Science:

  • Mycology
  • Infectious Diseases
  • Hematology

Background:

  • Invasive fusariosis is a severe fungal infection with significant morbidity and mortality.
  • It affects both immunocompetent and, more commonly, immunocompromised patients.
  • Patients with acute leukemia undergoing chemotherapy and allogeneic hematopoietic cell transplant recipients are at high risk.

Purpose of the Study:

  • To summarize the clinical presentation and management of invasive fusariosis.
  • To highlight the challenges in treating this infection with current antifungal agents.
  • To emphasize the critical role of host immune recovery in patient outcomes.

Main Methods:

  • Review of clinical literature on invasive fusariosis.
  • Analysis of patient data regarding risk factors and outcomes.
  • Discussion of antifungal susceptibility and clinical efficacy.

Main Results:

  • In immunocompetent patients, the disease is typically localized.
  • In immunocompromised hosts, infection is often disseminated, involving skin and lungs, with positive blood cultures.
  • Current antifungals show limited in vitro activity against Fusarium, and clinical correlation is uncertain.

Conclusions:

  • The outcome of invasive fusariosis is strongly linked to the resolution of immunosuppression.
  • Neutrophil recovery is particularly crucial for neutropenic patients.
  • Effective management requires addressing both the fungal infection and the host's immune status.