Sir.—I read the editorial "Incomplete Immunizations, Hospitalization, and Specialty Care"1 with great interest. I agree with Tifft and Lederman2 that incomplete immunizations are a major problem.
In the pediatrics ambulatory unit of the Catholic University of Rome, we employ a computerized immunization status calendar to record compulsory and noncompulsory immunizations. Documented, referred, and new immunizations are recorded, and parents are issued printed certificates of immunization status, along with a reminder of due dates.
This personal calendar facilitates both parent and physician compliance and awareness of immunization status. If regularly employed on a routine basis during hospitalization, it should help to minimize immunization deficiency, especially in the preschool-age child who tends to escape periodic control.
Furthermore, when immunizations are merely referred, and no documentation is available, we raise the question whether the cost involved in performing antibody assay to ascertain true immunization status may be more than justified.