Mycology Identification Scheme Dermatophyte Specimens · 21 st December 2008 UK NEQAS User Day...
Transcript of Mycology Identification Scheme Dermatophyte Specimens · 21 st December 2008 UK NEQAS User Day...
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21st December 2008 UK NEQAS User DayMYCOLOGY
for Microbiology
Mycology Identification Scheme
Dermatophyte Specimens
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21st December 2008 UK NEQAS User DayMYCOLOGY
Overview
• Review dermatophyte specimens distributed
• New specimen format development
• Results from pilot distribution
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21st December 2008 UK NEQAS User DayMYCOLOGY
What are the design criteria for EQA schemes?
• Clinically relevant• Homogeneous specimens• No matrix effect• Stable specimens• Adequately characterised• Measurement and assessment of
performance is possible
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21st December 2008 UK NEQAS User DayMYCOLOGY
Developing new specimens
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21st December 2008 UK NEQAS User DayMYCOLOGY
Specimen options
• Lyophilisation
• Under mineral oil
• Drying on silica gel
• Soil storage
• Spore suspensions in water
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21st December 2008 UK NEQAS User DayMYCOLOGY
Preparation of spore suspensions
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Dermatophytes selected Trichophyton rubrum
Trichophyton tonsurans
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Dermatophytes selected Trichopyton interdigitale
Epidermophyton floccosum
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21st December 2008 UK NEQAS User DayMYCOLOGY
Acknowledgements
Staff and participants ofUK NEQAS forMicrobiology
Nita PatelMalti nakraniAna Deheer GrahamMousoumi DaschowdhuryMartha Valencia
Special thanks to:StudentsAnita MarwahaKalana Patabendige
MycologyReference LaboratoryBristol