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Profile of anti-RBD IgG titres after the second dose according to diagnosis
The upper end line of the box is IQR 75, the lower end line of the box is IQR 25, the thick line in the middle of the box indicates the median value, the upper line of the thin horizontal lines indicates the maximum value, and the lower line indicates the minimum value. PFS: periodic fever syndrome; RBD: Receptor-binding domain; IQR: interquartile range.
