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lüll Plant-borne human contamination by fascioliasis Ashrafi K; Valero MA; Massoud J; Sobhani A; Solaymani-Mohammadi S; Conde P; Khoubbane M; Bargues MD; Mas-Coma SAm J Trop Med Hyg 2006[Aug]; 75 (2): 295-302Contamination by fasciolids takes place through ingestion of metacercariae attached to vegetables. Experimental studies were performed with plant-made foods suggesting a role in human contamination in Iran and on the usefulness of potassium permanganate as a preventive tool for killing metacercariae attached to vegetables used in salads in Egypt. In the foods assayed, although viability decreases with time, a high percentage of the metacercariae were still alive 2 and 4 weeks after preparation. Infection of laboratory animals proved that metacercariae kept their infectivity. The 5-minute tests of potassium permanganate effects showed that metacercarial viability was not affected even at the very high doses of 300, 600, and 1,200 mg/L. Careful, subsequent washing of leaves and vegetables with water is therefore needed after its application. A review on similar studies performed with metacercariae belonging to fasciolid and other trematode species affecting humans is included.|*Food Parasitology[MESH]|Animals[MESH]|Cricetinae[MESH]|Fasciola/*drug effects/isolation & purification[MESH]|Fascioliasis/*prevention & control/transmission[MESH]|Female[MESH]|Food Handling[MESH]|Humans[MESH]|Mesocricetus[MESH]|Mice[MESH]|Potassium Permanganate/*pharmacology[MESH]|Snails[MESH]|Vegetables/*parasitology[MESH] |