The pediatrician has always been among those physicians most sensitive and attentive to the principles and practice of preventive medicine. For the past three decades immunization against infectious diseases has constituted a major aspect of his activities. Many of the vaccines utilized today are the products of research and of investigators fostered by pediatric institutions. The success of these immunizing agents has had profound, beneficial effects on childhood morbidity and mortality. This same success has enabled the pediatrician in his practice and in his research to focus greater energies on many of the other challenges to the health of infants and children.
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