Experimental infection in the rabbit with Trichosporon capitaum

Area of Science:

• Medical Mycology
• Infectious Diseases
• Veterinary Pathology

Background:

• Trichosporon capitatum is a fungus with potential pathogenic capabilities.
• Understanding its infectivity in mammalian models is crucial for public health.

Purpose of the Study:

• To investigate the pathogenicity and effects of Trichosporon capitatum in a rabbit model.
• To document the gross and microscopic pathological changes induced by the fungus.

Main Methods:

• Fifteen New Zealand white rabbits were intravenously inoculated with Trichosporon capitatum spores and hyphal fragments.
• Animals were monitored for survival, and survivors were sacrificed at intervals for necropsy.
• Fungal presence and pathological lesions were assessed in various organs.

Main Results:

• Nine out of fifteen rabbits died spontaneously during the observation period.
• Autopsies revealed mycotic abscesses in the kidneys, with rupture into tubules.
• The fungus also invaded the brain and heart, eliciting inflammatory responses.

Conclusions:

• Trichosporon capitatum can establish a systemic infection in rabbits.
• The kidneys are a primary target organ, with potential for rupture and dissemination.
• Further research is warranted to understand the full spectrum of this fungal infection.