Most recent article I find is,
Russo, G. B., Goyal, T., Tyler, K. & Thakur, K. T. Re-Emergence of Poliovirus in the United States: Considerations and Implications. Annals of Neurology 92, 725–728 (2022).
https://share.counter.social/s/fff63b
Given some keywords I'll see what else I can turn up.