Polio vaccine vaccine became widely available, it supplanted Salk’s injected vaccine, which had been tarnished in the public's opinion by the Cutter incident, in which Salk vaccines prepared by one company resulted in several children dying or becoming paralyzed. An enhanced-potency IPV was licensed in the United States in November 1987, and is currently the vaccine of choice there. The first dose of polio vaccine is given shortly after birth, usually between 1 and 2 months of age, and a second dose is given at 4 months of age. The timing of the third dose depends on the vaccine formulation, but should
Salk Hall served as a residence for students. Pitt remodeled it to house the School of Dental Medicine and School of Pharmacy in 1961-1962. The Salk Hall Annex, a major renovation and three-story addition designed by the architectural firm Deeter, Ritchey, and Sippel for the Dental School, was completed the Terrace Street side of the building in 1967 for a cost of over $5 million ($ million today). Today, it serves as a main entrance for Salk Hall and the dental clinics. A new $50.6 million ($ million today) addition and renovation to Salk Hall was announced in January 2010. It will