Yellow fever vaccine Foundation to improve the vaccine from the "Asibi" strain, discovered that a favorable chance mutation in the attenuated virus had produced a highly efficacious strain that was named 17D. After field trials in Brazil, over one million people were vaccinated by 1939, without severe complications. For his work on the yellow fever vaccine, Theiler received the 1951 Nobel Prize in Physiology or Medicine. Only the 17D vaccine remains in use today. The outbreak of yellow fever in Angola in January 2016 has raised concerns about whether the global supply of vaccine is adequate to meet the need during a large
Jorge Theiler Jorge Theiler Jorge Walter Theiler (born 12 May 1964 in San José de la Esquina, Santa Fe) is an Argentine former footballer who played as a defender; he won the Primera División Argentina in 1987–88 with Newell's Old Boys. Theiler came through the youth team of Newell's Old Boys to make his debut in 1983. He played in the 1983 FIFA World Youth Championship where the Argentina Under-20 team reached the final but lost to Brazil. He also played for the full national team and was part of the squad for Copa América 1987. Newell's won the 1987-88 Primera División.