Polio vaccine incidents reduced public confidence in polio vaccine leading to a drop in vaccination rates. At the same time that Salk was testing his vaccine, both Albert Sabin and Hilary Koprowski continued working on developing a vaccine using live virus. During a meeting in Stockholm to discuss polio vaccines in November 1955, Sabin presented results obtained on a group of 80 volunteers, while Koprowski read a paper detailing the findings of a trial enrolling 150 people. Sabin and Koprowski both eventually succeeded in developing vaccines. Because of the commitment to the Salk vaccine in America, Sabin and Koprowski both did their
Sabin Merino Sabin Merino Sabin Merino Zuloaga (; ; born 4 January 1992), known simply as Sabin, is a Spanish professional footballer who plays for CD Leganés on loan from Athletic Bilbao mainly as a left winger. Born in Urduliz, Biscay, Basque Country, Sabin graduated from Danok Bat CF's youth setup after spells at Athletic Bilbao's Lezama and American team Javanon FC. In the summer of 2011 he returned to the "Lions", and made his debut as a senior with the farm team in Tercera División. On 21 June 2013, Sabin was promoted to the reserves in Segunda División B. On 29