Dr. Carlos Finlay was born on December 3, 1833 in Puerto Príncipe, Cuba now known as Camagüey of French and Scottish descent. In 1855 Finlay graduated from the Jefferson Medical College in Philadelphia, Pennsylvania and incorporated his diploma in the University of Havana in 1857. He was the first to theorize that a mosquito was a carrier of the Yellow Fever in 1881 and a year later, identified the mosquito carrying the disease. Finlay also proposed a way to control the spread of Yellow Fever. Dr. Finlay’s theory was confirmed in 1900 by the Walter Reed Commission, a United States Army Medical Corp.
History books give credit to Walter Reed but it was the Cuban physician and scientist Dr. Carlos Finlay who made the discovery.