Table 3. Positive rates of Echinococcus antigen in canine feces between the two groups in Kangma County, Shigatse City, Tibet, from June to November 2020.

Deworming time	Smart deworming group				Manual deworming group			χ2	p
	Test numbers (n)	Positive numbers (n)	Positive rate (%)		Test numbers (n)	Positive numbers (n)	Positive rate (%)
Before deworming	300	17	5.7		300	15	5.0	0.132	>0.05
Three months later	300	1	0.3		300	13	4.3	10.531	<0.05
Six months later	300	0	0.0		300	14	4.7	14.334	<0.05