History.—A girl, aged 2½ years, was admitted to the hospital on Dec. 10, 1928, with a condition that was diagnosed as pneumonia. There was no history of a previous influenza or even a bad cold, and the symptoms were said to have begun with a "choking spell" on December 8.
Examination.—Physical examination disclosed a fairly well nourished child, a temperature of 103 F., restlessness, coughing at intervals and a marked translucent edema about the eyes and extending to the waistline. The left eye was completely closed and the right eye was partially closed. On parting the lids, the pupils were found to be dilated, and there was some photophobia. Examination of the throat disclosed that it was swollen and red. Both ear drums were reddened and bulging; a paracentesis of both of the drums was done, a grayish-yellow purulent drainage resulting. The skin was mottled and partially cyanosed. Palpation