"The new vaccine does not contain the live viruses that are in the polio vaccines currently used in some low- and middle-income countries. It adds what’s known as an inactivated polio component into a multifaceted shot that is already being used to protect young children against five other dangerous infections. A similar shot is already available in the United States and some European countries."

https://www.nytimes.com/2023/06/30/health/polio-vaccine-gavi.html?action=click&module=Well&pgtype=Homepage&section=Health