1918 influenza pictures

I just ran across 4 pictures of the influenza epidemic at the end of World War I. 

USNH, Mare Island, Cal. Scene on ward during influenza epidemic. Nov. 1918. (12-0137-009)

U.S. Naval Hospital. A busy winter. General view of inner buildings and influenza emergency camps. [Building.][Hospitals, wards.][World War 1.] Mare Island, California. 12/10/1918. (09-5036-044)

U.S. Naval Hospital. Corpsmen in cap and gown ready to attend patients in influenza ward. [Hospitals, wards.][Scene.][Influenza.][World War 1.] Mare Island, California. 12/10/1918. (09-5036-043)

U.S. Naval Hospital. General view of influenza tents and open-air mess tent. [World War 1.] Mare Island, California. 12/10/1918. (09-5036-031)