Replication of ncp BVDV2a-1373 viral RNA in Monocytes, Mo-DC, or MDBK cells. Monocytes, MDBK cells, or Mo-DC were infected with ncp BVDV2a-1373 at 6 MOI. Cells were collected at 0, 1, 6, 12, 24, 48, 72, 96, 144, 168 and 192 hour(s) post-infection. Viral RNA was extracted from cells at each time point and quantified using qRT-PCR. The experiments were repeated three times and mean value was calculated at each time point.