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
First Step to Nobel Prize in Physics the winner was an American student. In 2009, the prize went to Mor Tzaban, a high school student from Netivot, Israel. In 2012, the first prize winner was another Israeli teenager, Yuval Katzenelson of Kiryat Gat, who presented a paper entitled "Kinetic energy of inert gas in a regenerative system of activated carbon." The Israeli delegation won 14 more prizes in the competition: 9 Israelis students won second prize, one won third prize and one won fourth prize. First Step to Nobel Prize in Physics The First Step to Nobel Prize in Physics is an annual international competition in research