Polio is named the next pandemic by UN, WHO
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