Show vaccination against hay fever treatment by accle im with a pollen vaccine whether judged by statistics or by the experimental ni method ethod has BUCI ceedee and the immunity thus acquired seems beems to last for one year at least after treatment has bas been ills dla 1 continued patients Pal lenta with mark marked ed constitutional eg including al ithma do better aban patients with slight flight and local symptoms patients Pat lenta with an inherited tendency do better than people without such auch tendency age makes no difference to the benefit derived from treatment |