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
Salk Hall include the construction of an research tower in the parking area behind the existing building by Ballinger Architects with associates DRS Architects. The new tower is planned to house laboratories and support spaces relocated from their current home in Salk Hall in order to free up space for additional classrooms and offices in the original structure. The target completion date is July, 2014. A dental museum is housed in the first floor reception area of Salk Hall. The museum contains a variety of original dental artifacts, including a c. 1910 dental chair, and x-ray machine and instrument cabinet from the