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January 30, 1892

THE NERVOUS AND MENTAL PHENOMENA AND SEQUELJE OF INFLUENZA.Read before the Philadelphia County Medical Society, January 13, 1892.

Author Affiliations


JAMA. 1892;XVIII(5):121-127. doi:10.1001/jama.1892.02411090001001

All practitioners have been struck by the prominence of nervous and mental phenomena in influenza; and much has been written, but mainly in a desultory way, about the symptoms of the disease which are referable to the nervous system, and its more or less persistent nervous and mental sequelæ. The part played by the nervous system in the etiology and history of the disease has been variously interpreted. One holds that it is a "nervous disease," without explanation; another describes it as a pneumogastric neurosis; another as a neuropathy due to ptomaine poison. According to Blocq, cited by Church, the primary infectious action takes place upon the nervous system during the disorder, while sequelæ are to be attributed to secondary infection from ptomaines. Cheston Morris, of Philadelphia, advances the theory that the general symptoms of influenza may be traced to a derangement of function, or partial paralysis of the pneumogastric