Le Professeur Échimane Kouassi Antoine est décédé le lundi 21 juin 2010.
He moved to the United States in 1900 to work with Prof. Simon Flexner at the University of Pennsylvania and in 1904 joined the Rockefeller Institute for Medical Research (now Rockefeller University). He made important studies of snake venoms, of smallpox and yellow-fever vaccines, and of the laboratory diagnosis of trachoma. He discovered the presence of Treponema pallidum (syphilitic spirochete) in the brain of a progressive paralysis patient, proving that the spirochete was the cause of the disease in 1913.
In 1918, he traveled extensively throughout Central America and South America to research for a vaccine for such diseases as yellow fever, Oroya fever, poliomyelitis and trachoma which threatened the lives of millions of people of the region.
In 1928, he traveled to Africa to confirm his findings. He tried to demonstrate the hypothesis that yellow fever was caused by spirochete bacteria in stead of a virus. While working in Accra, Ghana, he was struck down by the yellow fever virus, his last words being " I don’t understand". Source : Abe Cabinet, april 26, 2007