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
Nobel Prize controversies Alfred Nobel's will. When Jakob von Uexkull approached the Nobel Foundation with a proposal to establish two new awards for the environment and for the lives of the poor, he was turned down. He then established the Right Livelihood Award. In 2003 purportedly a new Nobel-equivalent Award was also created especially for mathematics, the Abel Prize, though the older Fields Medal is often considered as the mathematical Nobel equivalent. However, the Nobel Committee did allow the creation of the Nobel Memorial Prize in Economics. Many people have opposed this expansion, including the Swedish human rights lawyer Peter Nobel, a great-grandnephew