Analysis of Program Program Activities, National Institutes of Health, 1955

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Excerpt from Analysis of Program Program Activities, National Institutes of Health, 1955: National Institute of Allergy and Infectious Diseases, National Institute of Dental HealthIn studies on basic immunology, increasing emphasis has been directed toward the characterization and purification of antigenic material. By applying the concept that protective antibodies should be present within or on the cell wall of an organism, it has been possible to obtain fractions which at least are morphologically pure and which have increased antigenicity and decreased toxicity. That this concept of surface antigens may be generally applicable appears to be substantiated by the fact that such immunizing products have now been obtained from a fungus and two genera of bacteria.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.