Table 3.

Decision rules related to breeding information, infectious disease information, meteorological information, epidemiological information, and ecological environment information for designating HPAI quarantine zones.

Highly Pathogenic Avian Influenza (HPAI) Farm Culling Criteria			Score
Breed	Breeding type	In the case where the farm under analysis raises breeding chickens.	+0
		In the case where the farm under analysis raises meat chickens.	+0
		In the case where the farm under analysis raises laying hens.	+5
		In the case where the farm under analysis raises breeding ducks.	+20
		In the case where the farm under analysis raises meat ducks.	+15
Epidemic information	Analyzing nearby farm distances	If the distance between the farm under analysis and the nearby farm is within 500 m.	+30
		If the distance between the farm under analysis and the nearby farm is 500 m~3 km.	+5
		If the distance between the farm under analysis and the nearby farm is 3 km~10 km.	+2
		If the distance between the farm under analysis and the nearby farm exceeds 10 km.	−5
Weather	Temperature	If the temperature on the day of analysis is below 0 ${}^{°}$C.	+7
		If the temperature on the day of analysis is 0 ${}^{°}$C~15 ${}^{°}$C.	+5
		If the temperature on the day of analysis is 15 ${}^{°}$C~20 ${}^{°}$C.	+3
		If the temperature on the day of analysis is 20 ${}^{°}$C~30 ${}^{°}$C.	+0
		If the temperature on the day of analysis exceeds 30 ${}^{°}$C.	−10
	Wind direction	If the wind blows from the nearby farm under analysis towards the farm under analysis at an average speed of 3.3 m/s or more on the day of analysis.	+5
Epidemiological history	Analysis farm occurrence history	In the case where the farm under analysis has had one occurrence of HPAI in the past 5 years.	+10
		In the case where the farm under analysis has had two occurrences of HPAI in the past 5 years.	+20
		In the case where the farm under analysis has had three occurrences of HPAI in the past 5 years.	+40
Ecological environment	Distance from migratory bird habitat	If the distance between the farm under analysis and the main migratory bird habitat is within 15 km.	+7
		If the distance between the farm under analysis and the main migratory bird habitat is 15~30 km.	+3
		If the distance between the farm under analysis and the main migratory bird habitat exceeds 30 km.	−3