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Number of house sparrows sampled and number with WNV antibodies according to ELISA and VNT assays. Birds were captured in three habitat categories (natural, rural and urban areas) in three provinces (Cadiz, Huelva and Seville) in southern Spain.
| Birds sampled | ELISA positive | VNT positive | |
|---|---|---|---|
| Natural | |||
| Cadiz | 154 | 3 | 0 |
| Huelva | 265 | 17 | 7 |
| Seville | 313 | 2 | 0 |
| Rural | |||
| Cadiz | 225 | 0 | 0 |
| Huelva | 368 | 18 | 10 |
| Seville | 263 | 0 | 0 |
| Urban | |||
| Cadiz | 238 | 4 | 0 |
| Huelva | 439 | 5 | 0 |
| Seville | 279 | 1 | 0 |
| Total | 2544 | 50 | 17 |
