1. Influenza frequently complicated with pneumonia is prevalent at this time throughout America Author(s): Chicago (Ill.). Department of Health. Publication: [Chicago : Dept. of Health, 1918?] Subject(s): Influenza, HumanCommunicable Disease ControlChicago
2. A report of an epidemic of influenza in Chicago occurring during the fall of 1918: reprinted from the Octennial report, Department of Health, City of Chicago, 1911-1918 Author(s): Robertson, John Dill. Publication: [Chicago : Dept. of Health], 1919 Subject(s): Influenza, HumanCommunicable Disease ControlDisease OutbreaksHealth PolicyChicago