James Carroll (scientist)
Encyclopedia
Major
Major
Major is a rank of commissioned officer, with corresponding ranks existing in almost every military in the world.When used unhyphenated, in conjunction with no other indicator of rank, the term refers to the rank just senior to that of an Army captain and just below the rank of lieutenant colonel. ...

 James Carroll (June 5, 1854-September 16, 1907)) was a US Army
United States Army
The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...

 physician.

Carroll was born in England. He moved to Canada in 1874, and enlisted in the U.S. Army in 1874. He graduated with an M.D. from the University of Maryland
University of Maryland, College Park
The University of Maryland, College Park is a top-ranked public research university located in the city of College Park in Prince George's County, Maryland, just outside Washington, D.C...

 in 1891. In 1900 he served as an American physician
Physician
A physician is a health care provider who practices the profession of medicine, which is concerned with promoting, maintaining or restoring human health through the study, diagnosis, and treatment of disease, injury and other physical and mental impairments...

 and a member of the Yellow Fever Commission in Cuba, along with Walter Reed
Walter Reed
Major Walter Reed, M.D., was a U.S. Army physician who in 1900 led the team that postulated and confirmed the theory that yellow fever is transmitted by a particular mosquito species, rather than by direct contact...

, Jesse William Lazear
Jesse William Lazear
Jesse William Lazear was an American physician.He was the son of William and Charlotte née Pettigrew...

, and Aristides Agramonte
Aristides Agramonte
-External links:*...

. He and Lazear, subjected themselves to the bite of infectious mosquito
Mosquito
Mosquitoes are members of a family of nematocerid flies: the Culicidae . The word Mosquito is from the Spanish and Portuguese for little fly...

es, to test the theory that mosquitoes were carriers of yellow fever. The infection he contracted eventually killed him.

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