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Volume 8, Number 12—December 2002


West Nile virus Epidemic in Horses, Tuscany Region, Italy

Gian Luca Autorino*, Antonio Battisti*, Vincent Deubel†, Giancarlo Ferrari*, Riccardo Forletta*, Armando Giovannini‡, Rossella Lelli‡, Severine Murri†, and Maria Teresa Scicluna*
Author affiliations: *Istituto Zooprofilattico Sperimentale delle Regioni Lazio e Toscana, Rome, Italy; †Institut Pasteur, Lyon, France; ‡Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise, Teramo, Italy;

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Table 3

Enzyme-linked immunosorbent assay (ELISA) and complement fixation (CF) test results in horses from stables with silent infection (zone A)

Positive Negative Total
CF test Positive 26 4 30
CF test Negative 37 88 125
Total 63 92 155

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