Fig. 1. Four CCZ. The MAFRA of Korea has established four CCZ in Gyeonggi province and Gangwon province to separate infected region and their vicinity. Pigs, manure, and related vehicles were allowed to move only in each CCZ to prevent the spread of African swine fever virus to other areas.

CCZ 1, Northern zone of Gyeonggi province including infected area (red, four cities/counties; Yeoncheon, Paju, Gimpo, and Ganghwa), buffer zone (orange, five cities/counties; Cheorwon, Pocheon, Dongducheon, Yangju, and Goyang,) and Ongjin (yellow); CCZ 2, Northern zone of Gangwon province (green); CCZ 3, Southern zone of Gyeonggi province (pink), CCZ 4; Southern zone of Gangwon province (blue).

CCZ, critical control zone; DMZ, demilitarized zone.