ANTIBODY-RESPONSE OF PEDIATRIC SOLID-ORGAN TRANSPLANT RECIPIENTS TO IMMUNIZATION AGAINST INFLUENZA-VIRUS

We studied the immunogenicity of the 1992-1993 trivalent split-virus i nfluenza vaccine in pediatric solid organ transplant recipients (PSOTR s) and their healthy siblings, One month after immunization, 41 (82%) of 50 subjects achieved protective titers of antibodies to influenza A , and 30 (60%) to influenza B, rates similar to those in healthy sibli ngs, Achievement and persistence of protective titers occurred signifi cantly more often in children with preexisting antibody. We recommend annual immunization of PSOTRs, their household contacts, and health ca re workers; immunologically naive PSOTRs may benefit from immunization before transplantation.