Event Date
2000
Included in All Dates?
No
Unique ID
100339
Associated Media Filename

000369.mov

Forty-six years after the successful Salk poliovirus vaccine trials of 1954, concerns about cases of polio developing from use of the OPV led to the United States adopting an IPV-only vaccine schedule. Sabin’s vaccine was still used in other parts of the world where polio still circulated.

Related Media
Polio
Diseases & Vaccines