TABLE 3.

Detection of pathogenic Y. enterocolitica in slaughtered pigs by culture methods

Sample	No. of samples	No. of samples positive for:				Culture methoda	Reference
		O:3	O:5,27	O:8	O:9
Throat	1,200	86	1			CE	52
Feces	1,200	88	1			CE	52
Mesenteric lymph nodes	200					CE	52
Tonsils	86	33	3			SE + CE	29
Feces	100	16			1	SE + CE	29
Tonsils	202	57	18			SE + CE	58
Tonsils	106	43			2	D + SE + CE	30
Mesenteric lymph nodes	108	17				D + SE + CE	30
Throat	3,375	4	96b			CE	53
Feces	1,420	235		1	9	CE	92
Tonsils	291	67	1		2	CE	142
Feces	291	17				CE	142
Tonsils	50	30				D + ON + SE + CE	46
Feces	50	5				D + ON + SE + CE	46

^aCE, cold enrichment; SE, selective enrichment; ON, overnight enrichment; D, direct plating.

^bail-positive serotype O:5.