Table 4. Results of viral-specific antibody detection in bulk tank milk.
CS | Testing for antibodies in bulk tank milk |
|||
---|---|---|---|---|
No. of bulk milk samples | Positive samples (no.) | No. of farms | Positive farms a) | |
No. 1 | 103 | 4 | 102 | 4 (1) |
No. 2 | 260 | 11 | 246 | 8 (1) |
Total | 363 | 15 | 348 | 12 (2) |
a) The number within the parentheses indicate the number of viral RNA-positive farms among antibody positive farms. CS=cooling station, RNA=ribonucleic acid.