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Kinetics of serological parameters in sequential serum samples from two individuals with EBV-induced IM as detected by ELISA. The recombinant antigens used for the ELISAs are shown on the right. Serum samples were obtained at the dates indicated below the figures. Optical density values are shown on the left. The detectability of heterophile antibodies in each serum sample is shown below each plot and is indicated by + or −.
