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Abstract
This study was carried out to investigate parasitic contamination of raw vegetables in Hue city and surrounding areas. Eggs of parasite were detected by the Fulleborn flotation and the sedimentation techniques. The results showed that the overall rate of egg parasites detection on vegetables was 90.58%. Raw vegetables were contaminated with a variety of parasites including roundworms (Toxocara spp., Ancylostoma spp., Trichuris vulpis, Capillaria spp., Enterobius vermicularis, Ascarid lumbricodes), fluke (Fasciola spp., Clonorchis sinensis), tapeworms (Taenia spp., Dipylydium caninum) and coccidiosis (Eimeria spp., Isospora spp.). Ten common types of raw vegetables consist of water spinach, amaranth, basil, mustard greens, fish mint, coriander, pennywort, laksa leaves, perilla and lettuce are infected with parasites with high rates, ranging from 77.77% to 100%. There was no statistically significant difference in the prevalence of parasites on vegetables according to water and fertilizer sources. Vegetables irrigated with well water, tap water, river and lake water showed similar parasite infection rates, 91.3, 81.81 and 92.85%, respectively. The prevalence of parasite eggs on vegetable fertilized with and without manure was 91.49 and 90.11%, respectively.