'After Unicef helped carry out tests of sewage samples from Gaza that showed the presence of poliovirus, Russell said: “It’s incredibly alarming.”

Russell said the world was “getting so close, we believe, to getting rid of polio once and for all”, so any potential emergence of the poliovirus requires “close attention”.'

https://www.theguardian.com/world/article/2024/jul/25/gaza-palestine-poliovirus-discovery-unicef