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Table 1 Prevalences of antibodies against BTV-8 in four species of wild ruminants from Switzerland, 2009-2011

From: Survey of bluetongue virus infection in free-ranging wild ruminants in Switzerland

   Sampling units  
   Jura Jura North North Centre Centre South South South Total
   South North West East West East West Centre East  
Roe deer Seroprevalence 0 0 0 0 0 1.4 0 0 0 0.2
  (95% CI) (0–13.7) (0–5.3) (0–6) (0–4.5) (0–9.5) (0–7.5) (0–8) (0–20.6) (0–9.7) (0.01-1.3)
  positive / tested 0 /25 0 / 68 0 / 60 0 / 81 0 /37 1 / 72 0 / 44 0 / 16 0 / 36 1 / 439
Red deer Seroprevalence 29.2 - - 1 0 0 0 0 0 1.7
  (95% CI) (12.6-51.1)    (0–5.3) (0–7.4) (0–8.4) (0–6.5) (0–4.5) (0–2.8) (0.7-3.3)
  positive / tested 7 / 24 - - 1 /103 0 / 48 0 / 42 0 / 55 0 / 80 0 / 128 8 / 480
Chamois Seroprevalence 0 0 0 0 0 1.5 0 0 0 0.2
  (95% CI) (0–13.2) (0–5.8) (0–36.9) (0–4.9) (0–12.8) (0.04-8.3) (0–6.5) (0–9.5) (0–3) (0.01-1.2)
  positive / tested 0 / 26 0 / 62 0 / 8 0 / 73 0 / 27 1 / 65 0 / 55 0 / 37 0 / 120 1 / 473
Ibex Seroprevalence - - - 0 0 0 0 0 0 0
  (95% CI)     (0–6.1) (0–4.5) (0–7.4) (0–3.9) (0–33.6) (0–1.7) (0–0.7)
  positive / tested - - - 0 / 59 0 / 81 0 / 48 0 / 92 0 / 9 0 / 217 0 / 506
Total Seroprevalence 9.3 0 0 0.3 0 0.9 0 0 0 0.5
  (95% CI) (3.8-18.3) (0–2.8) (0–5.3) (0.01-1.8) (0–1.9) (0.1-3.1) (0–1.5) (0–2.6) (0–0.7) (0.3-1)
  positive / tested 7 / 75 0 / 130 0 / 68 1 / 316 0 / 193 2 / 227 0 / 246 0 / 142 0 / 501 10 / 1,898
  1. Samples are classified according to the nine sampling units. Confidence intervals (95% CI) are indicated in parentheses.