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
2012 Nobel Peace Prize the European Union. The 1984, 1976 and 1980 laureates stated in an open letter to the Nobel Foundation, based in Sweden, that in their view the EU stood for "... security based on military force and waging wars rather than insisting on the need for an alternative approach" and that "... the Norwegian Nobel Committee has redefined and reshaped the prize in a way that is not in accordance with the law". The International Peace Bureau, which won the prize in 1910, and several peace activists, writers and lawyers also signed the letter. The signatories demanded that the Nobel Foundation