Volume 8, Number 12—December 2002
Research
West Nile virus Epidemic in Horses, Tuscany Region, Italy
Table 1
Seroprevalence (%) |
||||
---|---|---|---|---|
Stable | Horses present | Clinical cases | 1st samplingb | 2nd samplingc |
1 | 25 | 2 | 11/21 (52.4) | not available |
2 | 5 | 1 | 3/5 (60) | 1/3 (33.3) |
3 | 12 | 2 | 6/10 (60) | 6/10 (60) |
4 | 49 | 2 | 9/13 (69.2) | 5/11 (45.4) |
5 | 7 | 1 | 2/7 (28.6) | 1/5 (20) |
6 | 270 | 1 | 5/49 (10.2) | 3/41 (7.3) |
7 | 52 | 1 | 9/20 (45) | 2/20 (10) |
8 | 18 | 1 | 6/8 (75) | 5/9 (55.5) |
9 | 60 | 3 | 12/26 (46.1) | 8/25 (32) |
Total | 498 | 14 | 63/159 (39.6) | 31/124 (25) |
aRepeat titers (October–November 1998) were obtained from 123 horses.
bPerformed October 12–16, 1998.
cPerformed November 9–13, 1998.
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