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April 10, 1920

THE DELIRIOUS AND THE MENINGO RADICULAR TYPES OF EPIDEMIC ENCEPHALITIS

Author Affiliations

Associate Professor of Nervous and Mental Diseases, Rush Medical College CHICAGO

JAMA. 1920;74(15):1009-1012. doi:10.1001/jama.1920.02620150017007
Abstract

Since my last report1 of a number of cases of epidemic encephalitis, I have become convinced that the same unknown virus produces clinical forms in which lethargy and other common symptoms of the characteristic "lethargic" form may be lacking. That we are dealing with the same disease is shown by the similarity in pathologic anatomy, the existence of transitional forms, and the occurrence of all these forms in the same community at the same time. Among the cases observed during the past winter, several have presented severe symptoms of a general infection suggestive of typhoid fever, acute miliary tuberculosis or other acute infectious disease. In other cases, verified by necropsy, the resemblance to severe, acute chorea was marked. Among new symptoms I, too, have observed the twitching of the abdominal muscles to which Thomas F. Reilly2 has recently called attention.

One patient, now improving, had complete right hemiplegia

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