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It is a single-dose comparison and does not follow reinfection.\nexposure: Single doses of 300 milligrams polymorph A, 300 and 500 milligrams polymorph C, against placebo and against 100 milligrams polymorph C twice daily for three days\nevidence_span: {\"source_cache\": \"artifacts/mebendazole-research/7939946.abstract.txt\", \"locator\": \"Indexed abstract; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"972b8bb36b68b1f40fba5f7bdb38668e9d1c40cba27ddeb19db16a3bcf29053d\", \"start_char\": 0, \"end_char\": 698, \"text_sha256\": \"972b8bb36b68b1f40fba5f7bdb38668e9d1c40cba27ddeb19db16a3bcf29053d\"}\n[mbz-p7939946] Efficacy of single-dose mebendazole, polymorphic forms A and C, in the treatment of hookworm and Trichuris infections. 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