A senior World Health Organization (WHO) official announced that the Israeli military and Hamas have agreed to three separate three-day pauses in fighting in Gaza to vaccinate 640,000 children against polio. The campaign is set to begin on Sunday, with pauses scheduled from 6 a.m. to 3 p.m. (0300-1200 GMT), according to Rik Peeperkorn, the WHO’s senior official for the Palestinian territories.