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Abstract:
Preincubation of blood, sputum, breast milk, and feces samples from patients in heparin-treated medium 199 for 18-24 h at ambient temperature to preserve viability of Paecilomyces tissue form when transferring the fungi from host to ambient temperature regimen results in transformation of the fungi into mycelium form in favorable conditions, which fact permits elevating the isolation rate of this fungus from 1.5 to 44-73 percent.
Insights
A new method preserves Paecilomyces fungi viability. Preincubation of clinical samples in medium 199 significantly increases isolation rates of Paecilomyces from 1.5% to 44-73%.
Area of Science:
- Medical Mycology
- Clinical Microbiology
- Fungal Pathogenesis
Context:
- Paecilomyces fungi present diagnostic challenges due to low isolation rates from clinical samples.
- Maintaining fungal viability during sample transport and processing is crucial for accurate diagnosis.
Purpose:
- To develop an improved method for isolating Paecilomyces from various clinical specimens.
- To enhance the detection rate of Paecilomyces in patient samples.
Summary:
- Preincubation of clinical samples (blood, sputum, breast milk, feces) in heparin-treated Medium 199 for 18-24 hours at ambient temperature promotes the transformation of Paecilomyces tissue form into mycelium.
- This transformation significantly increases the isolation rate of Paecilomyces from a baseline of 1.5% to a range of 44-73%.
Impact:
- This optimized protocol substantially improves the diagnostic yield of Paecilomyces, aiding in timely and accurate patient management.
- The enhanced isolation technique offers a more reliable method for studying Paecilomyces epidemiology and antifungal susceptibility.