TABLE 1.

Prevalence of E. bieneusi spores in swine feces and/or bile specimensa

Sample date (mo/yr)No. of pigsNo. (%) of:
Positive pigsPigs with positive bile specimensPigs with positive fecal specimensPigs with positive bile and fecal specimens
11/98111 (9)01 (9)0 (0)
1/99111 (9)01 (9)0 (0)
3/99142 (14)02 (14)0 (0)
4/99295 (17)1 (3)4 (14)0 (0)
5/99119 (82)5 (45)5 (45)1 (9)
6/99168 (50)3 (19)5 (31)0 (0)
8/99137 (54)5 (38)2 (15)0 (0)
9/99115 (45)3 (27)3 (27)1 (9)
11/99155 (33)3 (20)3 (20)1 (7)
12/99174 (24)2 (12)2 (12)0 (0)
02/00266 (23)3 (11)3 (11)0 (0)
3/00124 (33)3 (25)1 (8)0 (0)
6/00167 (44)6 (37)4 (25)3 (19)
Total20264 (32)34 (17)36 (18)6 (3)
  • a Specimens were collected over 18 months at a slaughterhouse in the northeastern United States. The number of positive samples and the corresponding percentage are shown for each sampling date and type of sample.