Among the 394 goats sampled, only 383 were tested by
fecal culture, because 11 animals had no fecal material in
the rectum at the time of sampling. These 11 animals were
not included in the test accuracy estimation. Among the 8
herds, 4 had a total of 35 fecal culture–positive animals
(9.1% of all sampled animals or 14.3% of goats tested from
infected herds). The fecal culture–positive animals were
categorized according to the shedding status as low (,50
cfu/g, 26 animals), medium (50–300 cfu/g, 6 animals), and
heavy (.300 cfu/g, 3 animals) shedders. In the other 4
herds, no goats had a positive fecal culture. Among all
goats tested, 66 (16.8%) goats had a positive serum ELISA
and 37 (9.4%) had a positive milk ELISA