Abstract
Summary
We believe we have demonstrated atopic (anaphylac-tic type) sensitivity for B. dysenteriae, occurring during course of infestation or infection of the bowel with these organisms. We know of no previous report. Cook's postulates have been fulfilled by: 1. Positive cutaneous reactions with the vaccines. 2. Reproduction of symptoms by subcutaneous injections of the vaccines. 3. The organism was isolated from the individual (in 3 cases; in the 4th serological evidence indicated the patient's contact with the organism).
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