Polio vaccine in several other African nations without necessary information, which epidemiologists believe is due to refusals by certain local populations to allow their children to receive the polio vaccine. The Salk vaccine, IPV, is based on three wild, virulent reference strains, Mahoney (type 1 poliovirus), MEF-1 (type 2 poliovirus), and Saukett (type 3 poliovirus), grown in a type of monkey kidney tissue culture (Vero cell line), which are then inactivated with formalin. The injected Salk vaccine confers IgG-mediated immunity in the bloodstream, which prevents polio infection from progressing to viremia and protects the motor neurons, thus eliminating the risk of bulbar
Salk Institute for Biological Studies draw the best researchers in the world. Salk and Kahn – having both descended from Russian Jewish parents that had immigrated to the United States – had a deeper connection than just mere partners on an architectural project. The results of their connection is seen in the design that resulted from their collaboration. The original buildings of the Salk Institute were designated as a historical landmark in 1991. The entire site was deemed eligible by the California Historical Resources Commission in 2006 for listing on the National Register of Historic Places. The institute has three Nobel laureates on its faculty: