1864 — Feb 24-Aug 3, Malarial Fevers,[1] Union POWs, Ft. Sumter, Andersonville GA — 149

–149  US Army Surgeon General. Medical and Surgical History of the War of the Rebellion                      

(Part III, Vol. I, Medical History),[2] p. 109.

Source

United States Army Surgeon General. The Medical and Surgical History of the War of the Rebellion (Part III, Vol. I, Medical History). Chapter 1 “On the Medical Statistics of the War, Section III. Prevalence and mortality of disease among U.S. troops in Confederate prisons,” pp. 33-45. Washington, DC: Government Printing Office, 1888. Accessed 5-24-2018 at: https://collections.nlm.nih.gov/catalog/nlm:nlmuid-14121350R-mvset

[1] Categorized as intermittent  (lets-up but then comes back) and remittent (fluctuating body temperatures).

[2] Section III. “Prevalence and Mortality of Disease Among the Union Troops in Confederate Prisons.” [pp. 33-34.]