FILE - Palestinians displaced by the Israeli air and ground offensive on the Gaza Strip, walk past sewage flowing into the streets of the southern town of Khan Younis, Gaza Strip, on July 4, 2024. Israel’s military on Sunday Aug. 25, 2024 said polio vaccines for more than 1 million people had been delivered to Gaza, after the first confirmed case of the disease in the territory in a quarter-century. (AP Photo/Jehad Alshrafi, File)