Table 1.

Origin of snail populations collected from the field

			Number of collected snails
Locality	Coordinates	Type of farm	Lymnaea palustris	Lymnaea fuscus	GenBank accession number
			n = 668	n = 130
Norrköping	58.62 N, 16.38 E	beef cattle	323		[GenBank:KC248373]*
Linköping	58.46 N, 15.56 E	beef cattle	245		[GenBank:KC248374]
Kristianstad	56.07 N, 14.11 E	beef cattle	100		[GenBank:KC905167]
Lilla Edet	58.09 N, 12.23 E	sheep		130	[GenBank:KC248371]**

* F1 generation of this L. palustris isolate was used in the experimental study.

** F1 generation of this L. fuscus isolate was used in the experimental study.