Table 1.

Anti-HEV IgG among slaughter-aged pigs (6-month-old) from different Bulgarian districts during 2017, 2018, and 2019. N designates the number of total samples; n, the number of positive samples; the districts are listed in alphabetical order.

Year			Dobrich	Pazardzhik	Plovdiv	Razgrad	Ruse	Varna	Shumen	Silistra	Stara Zagora	Yambol	Total
2017	IgG+	n									34		34
		%									45.33		45.33
	Total	N									75		75
2018	IgG+	n	6				9	7	8				30
		%	33.33				30	46.67	53.33				38.46
	Total	N	18				30	15	15				78
2019	IgG+	n	19	20	20	18	20	20	20	20	20	19	196
		%	95	100	100	90	100	100	100	100	100	100	98
	Total	N	20	20	20	20	20	20	20	20	20	20	200
Total	IgG+	n	25	20	20	18	29	27	28	20	54	19	260
		%	65.79	100	100	90	58	77.14	80	100	56.84	95	73.65
	Total	N	38	20	20	20	50	35	35	20	95	20	353