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Additional yield of worms in samples with concentration techniques
| Technique | Ascaris lumbricoides | Trichuris trichiura |
|---|---|---|
| Direct methods | ||
| Detected by normal saline and iodine | 1 | 1 |
| Concentration techniques | ||
| Additional detection over normal saline and iodine by zinc sulfate floatation technique | 1 | 0 |
| Additional yield over normal saline and iodine by formalin-ether sedimentation technique | 3 | 0 |
