The 1918 flu pandemic (January 1918–December 1920) was an unusually deadly influenza pandemic, the first of the two pandemics involving H1N1 influenza virus (the second being the 2009 flu pandemic). It infected 500 million people across the world, including remote Pacific islands and the Arctic, and killed 50 to 100 million of them—three to five percent of the world's population —making it one of the deadliest natural disasters in human history.
The pandemic surfaced at Fort Riley, Kansas in early 1918. By mid-March, more than 500 soldiers there were exhibiting flu symptoms:
Wikipedia article: 1918 Flu Pandemic:
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Title: America's forgotten pandemic: the influenza of 1918.
Author/Compiler: Crosby, Alfred W.
Local Call Number: ST—614.518
Publication Date: 1989.
Title: American pandemic: the lost worlds of the 1918 influenza epidemic .
Author/Compiler: Bristow, Nancy K.
Local Call Number: S-TECH—614.5180973
Publication Date: 2012.
Title: The burdens of disease: epidemics and human response in Western history.
Author/Compiler: Hays, J. N.
Local Call Number: ST—614.49
Publication Date: 1998.
Title: The devil's flu: the world's deadliest influenza epidemic and the scientific hunt for the virus that caused it.
Author/Compiler: Davies, Pete.
Local Call Number: ST—614.5180904
Publication Date: 2000.
Title: Dread: how fear and fantasy have fueled epidemics from the Black Death to avian flu.
Author/Compiler: Alcabes, Philip.
Local Call Number: BU—614.4
Publication Date: 2009.
Title: Flu: the story of the great influenza pandemic of 1918 and the search for the virus that caused it.
Author/Compiler: Kolata, Gina Bari.
Local Call Number: SC—614.5180904
Publication Date: 2001.
Title: The great influenza: the epic story of the deadliest plague in history.
Author/Compiler: Barry, John M.
Local Call Number: S-TECH—614.5180904
Publication Date: 2004.
Title: Influenza 1918: the worst epidemic in American history / foreword by David McCullough.
Author/Compiler: Iezzoni, Lynette.
Local Call Number: S-TECH—614.518
Publication Date: 1999.
Title: Man and microbes: disease and plagues in history and modern times.
Author/Compiler: Karlen, Arno.
Local Call Number: HG—614.409
Publication Date: 1995.
Title: Plagues in world history.
Author/Compiler: Aberth, John.
Local Call Number: S-TECH—614.4
Publication Date: 2011.