The Institute takes its name from Major Walter Reed, MD (1851–1902), the Army physician who, in 1901, led the team that confirmed the theory that yellow fever is transmitted by a particular mosquito species, rather than by direct contact. Today, the WRAIR fosters and performs biomedical research for the DoD and the US Army. It has recently developed two modern "Centers of Excellence" in the fields of military psychiatry/neuroscience and infectious disease research. The Centers focus, respectively, on soldier fitness, brain injury, and sleep management and in the development of vaccines and drugs for prevention and treatment of such diseases as malaria, HIV/AIDS, dengue fever, wound infections, leishmaniasis, enteric diseases and others.