Following confirmation on 23 January of a polio case in the southwestern province of Ombella Mpoko, Central African Republic (CAR) health officials have scheduled an anti-polio immunisation drive in the province for 23-28 February. "To avoid other cases, all the children in the region must be immunised," Nestor Nali, the health minister, was quoted as saying on Monday by state-owned Radio Centrafrique.