Dr. Finaly

Dr. Carlos Juan Finlay was born in Cuba and educated in Europe and the United States. He was among the Cuban scientists chosen to work with the U.S. Yellow Fever Commission of 1879. Dr. Finlay was convinced by the commission’s results that the germ was present in the walls of blood vessels. He concluded that the disease somehow spread from an infected person’s vessels directly to another’s. Thinking in terms of inoculation, he implicated the long proboscis of Havana’s household mosquito, the Aedes aegypti. Dr. Carlos Juan Finlay specified the Aedes aegypti mosquito as the vector for the disease. It took him over 20 years to prove his theory.