Major Walter Reed, M.D., (September 13 1851 - November 23 1902) was a U.S. Army physician who in 1900 led the team which confirmed the theory (first set forth in 1881 by Cuban doctor/scientist Carlos Finlay) that yellow fever is transmitted by mosquitoes, rather than by direct contact. This insight opened entire new fields of epidemiology and biomedicine and most immediately allowed the resumption and completion of work on the Panama Canal (1904-14) by the United States. Wikipedia
The definitive Wikipedia entry for Walter Reed. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Walter_Reed
Major Walter Reed - physician, researcher, soldier - remains the model of the military medical scientist. wrair-www.army.mil/AboutWRAIR/WRAIROverview/MajorWR.asp
After serving at Fort McHenry, Walter Reed was again assigned to southern and western posts at Fort Omaha, Nebraska, and Mount Vermon Barracks, Alabama. www.wramc.amedd.army.mil/welcome/history/