More than 150,000 children in Gaza received the required second dose of oral polio vaccine in the first two days of the campaign's second round, the WHO chief said on Wednesday (Oct 16). Despite continuing Israeli military operations in some areas of the Palestinian territory, the second round of a polio vaccination campaign, aiming to reach more than 590,000 children under the age of 10, began on Monday. "The total number of children who received a second dose of polio vaccine in central Gaza