The Board of the Global Polio Eradication Initiative (GPEI), above.

https://polioeradication.org/wp-content/uploads/2021/03/Polio-Oversight-Board-Terms-of-Reference.pdf

Sources are the United Nations (UN) and their subsidiary, the World Health Organization (WHO).

https://polioeradication.org/gpei-strategy-2022-2026/

Their 84-page polio eradication plan is linked here:

https://polioeradication.org/wp-content/uploads/2021/10/9789240031937-eng.pdf

https://polioeradication.org/news-post/g20-health-ministers-call-for-renewed-commitment-to-eradicate-polio-note-its-critical-role-in-responding-to-global-pandemics/

https://www.who.int/news/item/20-08-2021-statement-of-the-twenty-ninth-polio-ihr-emergency-committee

https://www.cdc.gov/polio/progress/index.htm

https://polioeradication.org/polio-today/polio-now/this-week/