Volume 8, Number 8—August 2002
Research
West Nile Virus Outbreak in Horses, Southern France, 2000: Results of a Serosurvey
Benoit Durand*
, Véronique Chevalier*, Régis Pouillot*, Jacques Labie*, Ingrid Marendat†, Bernadette Murgue†, Hervé Zeller†, and Stéphan Zientara*
, Véronique Chevalier*, Régis Pouillot*, Jacques Labie*, Ingrid Marendat†, Bernadette Murgue†, Hervé Zeller†, and Stéphan Zientara*
Table 1
Immunoglobulin G anti-West Nile virus prevalence in equines by age group, Camargue, France, 2000a
| Age (yrs) | Total | Positive (%) |
|---|---|---|
| <1 | 33 | 2 (6.1) |
| 1–2 | 368 | 44 (12.0) |
| 3–5 | 938 | 88 (9.4) |
| 6–10 | 1,559 | 124 (8.0) |
| 11–15 | 975 | 87 (8.9) |
| 16–20 | 555 | 50 (9.0) |
| 21–25 | 229 | 21 (9.2) |
| >25 | 92 | 9 (9.8) |
| Total | 4,749 | 425 (8.9) |
aChi square = 6.63 (7 degrees of freedom); p=0.47.
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