Prevention of human fascioliasis: a study on the role of acids detergents and potassium permenganate in clearing salads from metacercariae
el-Sayad, M.H.; Allam, A.F.; Osman, M.M.
Journal of the Egyptian Society of Parasitology 27(1): 163-169
1997
ISSN/ISBN: 1110-0583 PMID: 9097538 Document Number: 1147
Prevention of human fascioliasis could depend on clearing of the leafy salads from the metacercariae. The present work evaluated the role of some chemicals in detaching and killing this infective stage. It was observed that washing in running water for 10 minutes detached only 50% of the metacercariae. Citric acid in the concentration of (10 ml/L) commercial vinegar (120 ml/L), liquid soap (12 ml/L) and KMnO-4 (24 mg/L) detached all metacercariae after 10 minutes exposure. The use of vinegar and KMnO-4 is recommended: the first is lethal to other parasites in the vegetables, the second destroyed the metacercariae. Vegetable leaves were not softened and remained fresh.
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