Table 2. Prevalence of anti-hepatitis E virus (HEV) antibodies in wild boar in Japan.

	Sex			Body weight (kg)				Total
	Male	Female	No record	<30	30–50	>50	No record
No. of examined animals	1,151	1,027	197	637	772	538	428	2,375
No. of positive animals	139	140	15	34	115	99	46	294
Percentage of anti-HEV antibody-positive animals	12.1%	13.6%	7.6%	5.3%	14.9%	18.4%	10.7%	12.4%