ISLAMABAD - Despite repeated tall claims by the government to have done enough to curb polio, four new cases have emerged in Pakistan, taking the number to 257. According to National Health Department, three new cases have been reported in Peshawar and one in North Waziristan. With these new cases, the toll has mounted to 162 in Fata and 54 in Khyber Pakhtunkhwa. The tally has reached to 257 in the entire country.