Volume 16, Number 5—May 2010
Dispatch
Bluetongue Virus in Wild Deer, Belgium, 2005–2008
Annick Linden
, Fabien Grégoire, Adrien Nahayo, David Hanrez, Bénédicte Mousset, Audrey Laurent Massart, Ilse De Leeuw, Elise Vandemeulebroucke, Frank Vandenbussche, and Kris De Clercq
, Fabien Grégoire, Adrien Nahayo, David Hanrez, Bénédicte Mousset, Audrey Laurent Massart, Ilse De Leeuw, Elise Vandemeulebroucke, Frank Vandenbussche, and Kris De ClercqTable
Seroprevalence of bluetongue virus among red deer, by age and study area, Belgium, 2006–2008*
| Characteristic | 2006 |
2007 |
2008 |
|||||
|---|---|---|---|---|---|---|---|---|
| No. positive/ no. tested (%) | 95% CI | No. positive/ no. tested (%) | 95% CI | No. positive/ no. tested (%) | 95% CI | |||
| Age† | ||||||||
| Adults | 4/221 (1.81) | 0.05–3.57 | 142/216 (65.74) | 59.41–72.07 | 111/185 (60.00) | 52.94–67.06 | ||
| Subadults | 1/59 (1.69) | 0.00–4.99 | 45/82 (54.88) | 44.11–65.65 | 27/75 (36.00) | 25.14–46.86 | ||
| Juveniles | 2/178 (1.12) | 0.00–2.67 | 80/213 (37.56) | 31.06–44.06 | 11/191 (5.76) | 2.46–9.06 | ||
| Area‡ | ||||||||
| Eastern | ND | ND | 81/161 (50.31) | 42.59–58.03 | 43/123 (34.96) | 26.53–43.39 | ||
| Central | ND | ND | 103/154 (66.88) | 59.45–74.32 | 61/135 (45.19) | 36.79–53.58 | ||
| Southern | ND | ND | 32/105 (30.48) | 21.67–39.28 | 27/133 (20.30) | 13.46–27.14 | ||
*CI, confidence interval; ND, not determined.
†Adults, >2 y of age; subadults, 1–2 y of age; juveniles, <1 y of age.
‡Fourteen forest districts were distributed among 3 nonadjacent areas, 5 in the eastern area, 4 in the central area, and 5 in the southern area.
