An item in “Quantum Sufficit” (September 1, 1999, page 726), pertaining to health screening in elderly persons, contained a misleading statement. The third sentence of this item should have read: “For example, pneumococcal vaccination should be given once to all elderly persons and revaccination offered after five years to those at highest risk of fatal pneumococcal infection.” Current recommendations do not support routine revaccination of elderly patients every five to 10 years.