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| Virus plaquing | Serology for dengue | |||
|---|---|---|---|---|
| Negative | Positive | |||
| N | % | N | % | |
| Negative | 66 | 81.5 | 474 | 97.9 |
| Positive | 15 | 18.5 | 10 | 2.1 |
| Total | 81 | 100 | 484 | 100 |
p = 0.000 (Fisher)
