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Evolution of the clinical sensitivity over 8 weeks according to the manufacturer's cut‐off and the adapted cut‐off for the NovaLisa SARS‐CoV‐2 (COVID‐19) IgG (A), IgA (B), and IgM (C) tests and (D) for the Platelia SARS‐CoV‐2 Total Ab method (Bio‐Rad). IgA, immunoglobulin A; IgG, immunoglobulin G; IgM, immunoglobulin M; SARS‐CoV‐2, severe acute respiratory syndrome coronavirus 2
