FIGURE 1.
mRNA‐1273 vaccine‐associated antibodies recognize un‐complexed PF4 targets. Key testing, intervention, and platelet count trending are provided. The abscissa denotes days of hospitalization, and the ordinate shows the platelet count. Complexed PF4:PF4‐polyanion enzyme‐linked immunosorbent assay (ELISA) (Lifecodes PF4 IgG); un‐complexed PF4:antibody binding to un‐complexed PF4 targets in an ELISA format; PEA, PF4‐dependent P‐selectin Expression Assay; TPE, therapeutic plasma exchange. Newly generated data since the prior report on this patient 1 are indicated in red. Some data are reproduced with permission from Sangli et al. 1 ©American College of Physicians