Table 1. Detection of bovine viral diarrhea virus (BVDV) in milk tanker samples and bulk milk samples on dairy farms, based on reverse-transcription polymerase chain reaction (RT-PCR) assay in the pilot study.

Maximum capacity of the milk-collecting vehicle	Milk tanker sample			Bulk tank milk
	n	Positive	Negative	n	Positive	Negative
4.2–6.7 t	37	2	35	191	2	189
10.5–13.5 t	13	1	12	29	1	28
Total	50	3	47	220	3	217