Table 2. Results of the field investigation for model validation in Eryuan and Midu Counties.

Model Prediction		Eryuan		Midu
Validation		Suitable area	Unsuitable area	Suitable area	Unsuitable area
Field Survey	Snail presence	13 (A1)	3 (B1)	16 (A2)	3 (B2)
	Snail absence	4 (C1)	10 (D1)	2 (C2)	9 (D2)
	Total	17	13	18	12