Figure 3. Antibody concentration in healthy blood donors and kidney-transplant
recipients before vaccination according to their immunosuppressive treatment.
(A) Concentrations of antibodies against tetanus toxoid, DT, PCP, andHibweremeasured by ELISAin healthy blood donors (white bars), group 1 (gray bars), and group 2 (hatched bars). (B)Numbers and percentages of protected individuals against each pathogenwithin the 3 groups (seeMaterials andMethods for protective levels).