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Pathway-specific activation of serum samples from acute atypical haemolytic uraemic syndrome (aHUS) patients. Specific activation of the classical (CP), the lectin (LP) and the alternative (AP) pathways of complement was measured in six acute-phase patients and in 19 controls with TCC deposition as readout. Data are presented as percentage of activation of the positive control provided with the assay. Low alternative pathway activation value in a sample of patient P6a is indicated.
