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Table 2 Number of positive, doubtful and negative samples in Ab ELISA, according to the manufacturer’s recommended cut-off, compared to VNT titer for BDV, considering 1/8 titer as cut-off for VNT

From: Seroprevalence of border disease virus and other pestiviruses in sheep in Algeria and associated risk factors

ELISA result Neg VNT Pos VNT (titer ≥1/8)
<  1/8 1/8 1/12 1/16 1/24 1/32 1/48 1/64 1/96 1/128 1/192 1/256 Total Pos (VNT) Total samples
Doubt 4   1    7 1 5 3 10 5   32 36
Pos 0 1   1 1 9 5 20 3 15 6 28 89 89
Neg 49 2   2   7 2 5 1 2   2 23 72
Total 53 3 1 3 1 23 8 30 7 27 11 30 144 197
  1. Neg: negative
  2. Pos: positive
  3. Doubt: doubtful