Influenza first made its appearance in epidemic form at the U. S. Naval Hospital, League Island, Pa., Sept. 12, 1918, on which day sixty-six patients were admitted from the receiving ship extension barracks. The epidemic continued in unabated form until September 17, when the crisis was reached.
Our clinical observations were made on 600 cases of influenza of which 168 patients developed pneumonia; of the latter, forty-eight died. The disease spread more rapidly among men in barracks than among those living in tents.
In general, the prognosis in uncomplicated cases of influenza is good as to life. Several instances of acute pulmonary tuberculosis have been observed following an attack of influenza, and it is very probable that latent tuberculosis lesions are converted into active foci by the influenza infection. Influenza occurring in patients with chronic diseases, such as nephritis, is a very serious matter.
No specific treatment has been