Volume 8, Number 12—December 2002
Research
West Nile virus Epidemic in Horses, Tuscany Region, Italy
Table 2
Comparison between first sampling (acute, October 1998) and second sampling (convalescent, November 1998) complement fixation test results in horses from the stables with clinical cases (zone A)
1st sampling |
||||
---|---|---|---|---|
Positive | Negative | Total | ||
2nd sampling | Positive | 29 | 1 | 30 |
2nd sampling | Negative | 18 | 75 | 93 |
Total | 47 | 76 | 123 |
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