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November 4, 1939


JAMA. 1939;113(19):1722-1724. doi:10.1001/jama.1939.02800440026008

During July, August, September and October 1938 an epidemic of acute encephalitis, which clinically resembled the St. Louis type, was observed in North Dakota. According to information supplied by Dr. John Cowan, of the North Dakota Department of Health, 101 instances were reported, of which fifty-two occurred in Minot and the surrounding rural territory, which includes the ten counties in the north-western portion of the state. Twenty-three of these patients were cared for in Trinity Hospital by the members of the medical staff, and the material of this report was obtained from their clinical records. Nine entered the hospital from Minot, while fourteen came from farm homes located within a radius of 65 miles of the city. The rural patients lived from 10 to 120 miles apart, and in only two instances did more than one patient come from any single locality.

Nineteen patients were adults and four were children.