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Table 1 Serological results A, B, C, D and E. cELISA positive (above cutoff) sheep with frequency, respective proportion (%), median titers and titer range.

From: Ovine Enzootic Abortion (OEA): a comparison of antibody responses in vaccinated and naturally-infected swiss sheep over a two year period

Flock (n) Parameter Spring 2005 Autumn 2005 Spring 2006 Autum 2006
A No. positive 15 13 11 11
15 sheep Prop. Pos. (%) 100 87 73 73
  Median titer 91.7 86.6 81.3 82.3
  Titer range 70.9 – 99.9 55.1 – 99.2 62.0 – 99.0 55.3 – 99.2
B No. positive 8 4 2 8
26 sheep Prop. Pos. (%) 31 16 8 31
  Median titer 65.0 62.9 58.7 63.9
  Titer range 61.3 – 72.8 55.1 – 68.1 56.4 – 61.0 55.3 – 77.5
C No. positive 14 13 14 15
17 sheep Prop. Pos. (%)1 82 76 82 88
  Median titer 82.9 72.2 71.3 76.8
  Titer range 69.1 – 95.2 55.1 – 89.6 57.1 – 94.8 55.4 – 95.8
D No. positive 13 21 29 19
63 sheep Prop. Pos. (%) 21 33 46 30
  Median titer 69.5 69.1 69.4 74.3
  Titer range 55.1 – 100 55.1 – 93.4 55.6 – 88.6 56.9 – 95.2
E No. positive 26 24 19 24
63 sheep Prop. Pos. (%) 42 38 30 38
  Median titer 73.4 81.2 80.4 81.8
  Titer range 57.4 – 94.8 56.5 – 96.3 55.2 – 97.6 56.0 – 98.7
  1. 1significant difference in % positive (Fishers Exact Test, p = 0.024)