Table 2.
Enzyme-linked immunosorbent assay (ELISA), polymerase chain reaction (PCR) and fecal culture positive results of five dairy herds examined for Map in Colombia.
| Herd | District | Herd cattle population | Number of samplesa | Serum ELISA-C | Fecal culturec | Fecal PCRe |
|---|---|---|---|---|---|---|
| 1 | Monterredondo | 125 | 75 | 2 | 4d | 2 |
| 2 | El Yuyal | 174 | 53b | 4 | 0 | 0 |
| 3 | El Yuyal | 144 | 84 | 0 | 0 | NDf |
| 4 | Santo Domingo | 172 | 94 | 0 | 0 | ND |
| 5 | Santa Bárbara | 38 | 23 | 0 | 0 | ND |
| Total | 653 | 329 | 6 | 4 | 2 | |
aOnly cows over 2 years of age were sampled.
bIn this herd, 110 animals were sampled for feces, but only 53 of them were sampled for serum.
cRefers to fecal samples cultured individually.
dPositive results of one lymph node, one colon tissue, and two slurry samples are not included.
eRefers to individual fecal samples part of pooled fecal samples positive by culture, and to fecal samples of positive ELISA-C animals tested individually.
fND not done.