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Blood MxA protein levels in children according to virus detection and presence of symptoms, and in asymptomatic adults. Boxes show median and IQR, and whiskers show 10th and 90th percentiles. Values below the sensitivity limit of 10 μg/L are presented as 7 or 5 μg/L. Values above different groups indicate the ratios of values above the cut-off level of 175 μg/L.
