Description
This is a historical sign from 1918 regarding influenza complicated by pneumonia.
Credit
Public domain/ courtesy, the National Library of Medicine/ Department of Health, Chicago, Ill, creator/ John Dill Robertson, contributor/ 1918
This is a historical sign from 1918 regarding influenza complicated by pneumonia.
Public domain/ courtesy, the National Library of Medicine/ Department of Health, Chicago, Ill, creator/ John Dill Robertson, contributor/ 1918