Table 1.

Enrollment per study site in the survey and the prevention study

Country	Study site ID	Survey study			Prevention study
		All dogs	A. vasorum positive		Total
		n	n	%	n	%
Denmark	DA	50	19	38.0	31	5.0
	DB	92	5	5.4	18	2.9
	DD	15	0	0	9	1.4
	DE	18	1	5.6	23	3.7
	DF	23	2	8.7	29	4.7
	DG	44	2	4.5	25	4.0
	DH	1	0	0	0	0
	DI	38	2	5.3	9	1.4
	DJ	11	0	0	15	2.4
	DK	10	5	50.0	9	1.4
	DL	25	9	36.0	38	6.1
	DM	52	1	1.9	37	5.9
	DN	87	3	3.4	21	3.4
	DO	42	7	16.7	13	2.1
	DP	78	5	6.4	12	1.9
	DR	22	6	27.3	30	4.8
Italy	IA	83	5	6.0	23	3.7
	IB	60	2	3.3	14	2.3
	IC	82	5	6.1	20	3.2
	ID	58	4	6.9	19	3.1
	IE	82	12	14.6	25	4.0
	IF	71	21	29.6	26	4.2
	IG	79	15	19.0	38	6.1
	IH	90	3	3.3	18	2.9
	II	73	0	0	14	2.3
	IJ	72	8	11.1	25	4.0
	IK	49	9	18.4	17	2.7
	IL	67	7	10.4	14	2.3
	IN	82	29	35.4	30	4.8
	IO	67	11	16.4	20	3.2
Total		1623	198	12.2	622	100

Notes: For the survey study the total number of tested dogs and the number and percent of Angiostrongylus vasorum positive dogs is shown for each study site. For the prevention study the number and percent of all enrolled animals is provided per study site. Site DH withdrew from the studies