Volume 8, Number 8—August 2002
Research
West Nile Virus Outbreak in Horses, Southern France, 2000: Results of a Serosurvey
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.