- Centers for Disease Control and Prevention (accessed December 3, 2009).
- "Demonstration at the Red Cross Emergency Ambulance Station in Washington, D.C., during the influenza pandemic of 1918," 1918, Library of Congress, Prints and Photographs Division (accessed December 3, 2009).
History of Hidden Killers: Epidemics in America
Swine flu, avian flu, SARS, MRSA—what do modern-day epidemics bring to mind for you? The Black Plague? Or how about more recent outbreaks, closer to home? Match the descriptions of diseases that have troubled North America with their names. (Each is used once and only once.)