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Table 3 Number of positive, doubtful and negative samples in Ab ELISA compared to the ratio [VNT titer for BDV / VNT titer for BVDV-1 or BVDV-2]

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

  VNT Titre BDV/ Titre BVDV Total
> 4 x 2–3 x <  2 x Neg
ELISA Ab results
 Doubt 19 7 6a 4 36
 Pos 63 8 18 89
 Neg 21 2a 49 72
 Total 103 15 26 53 197
  1. > 4 x / 2–3 x / < 2 x: VNT titer for BDV compared to VNT titer for BVDV-1 or BVDV-2 more than fourfold higher / between two and threefold higher / less than twofold higher
  2. Pos: positive
  3. Neg: negative
  4. Doubt: doubtful
  5. aincluding 1 sample with high BVDV-2 Titer