Individual patient antibody response to EHEC antigens (y axis) at days 0, 8, and 60 posthospitalization (x axis). ELISAs were performed to detect the recombinant GST fusion proteins, and titers of the following were determined: Tir (squares), intimin (diamonds), EspA (circles), and EspB (triangles). The figure shows data from one representative experiment, and experiments were repeated at least three times.