Table 5 Summary of the screening of Norwegian nucleus and multiplying pig herds for Antibodies in blocking ELISA to Mycoplasma hyopneumoniae in blood samples during 1994–1996.
| Total no. of samples | No. of samples with antibodies (%) | No. of herds with a confirmed infection (%) | |
|---|---|---|---|
| Elite breeding herds (n = 110) | 7101 | 177 (2.5) | 5 (4.5) |
| Multiplying herds (n = 79) | 3078 | 156 (5.1) | 6 (7.6) |
