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| IPs | FIPs | Stool tests not done (excluded) | Stool tests done (included) | Positive results | Negative results |
| IP+ 120 | 462 | 284 (61.5) | 178 (38.5) | 90 (50.6) | 88 (49.4) |
| IP− 474 | 1720 | 1154 (67.1) | 566 (32.9) | 253 (44.7) | 313 (54.8) |
| 594 | 2182 | 1438 | 744 | 343 (46.1) | 401 (53.9) |
