External quality assurance scheme for diphtheria diagnostics 2012
This report comprises the findings of the second external quality assurance (EQA) dispatch for the laboratory diagnosis of diphtheria under the auspices of EDSN. A total of thirty countries participated in this EQA and were asked to isolate, identify and perform toxigenicity testing on any Corynebacterium spp. present in the six simulated throat specimens sent. Overall, 90% of the identification reports and 89% of the toxigenicity reports were correct – a slight improvement on the previous EQA from 2010.
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