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A third factor which should be considered in determining the actual mortality is the result of later complications and sequelæ. The figures as given are those of 547 patients, 110 of whom had died in the Mercy Hospital and 437 of whom had been discharged therefrom between September 22 and November 30, 1918, the length of the quarantine. Those who were discharged had been up and about for a week or 10 days before leaving the hospital. From our experience with post-influenzal patients admitted to the Mercy Hospital since November 30, we are of the opinion that some of the patients discharged before November 30 as recovered may have later developed sequelæ which might have proved fatal. No follow-up system has been pursued as yet which enables us to speak definitely and statistically of the present condition of those discharged.

This compilation does not readily lend itself to drawing any more specific conclusions, but we cannot desist from expressing our opinion that in the clinical study of this recent epidemic we find very little that may not have been observed by clinicians in previous epidemics.