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Agarose-gel electrophoresis of PCR products amplified by Strongyloides stercoralis-specific primers using genomic DNA extracted from stool samples. Lane A: Positive PCR product (114 bp) from a stool sample in which S. stercoralis larvae were found by formalin-ether concentration method. Lanes B-D: Negative PCR products of the patient’s stool samples (follow-ups). Lane M: 100 bp DNA marker ladder.
