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| Prevalence of Pathogenic Intestinal Parasites in Common Raw Edible Vegetables in Gezira State, Sudan: A Cross-sectional study |
AlbadawiAbdelbagiTalha,, Lana Mohamed Elamin&, Montasir Ganim, Mohammed Y. Babikir, Nasareldeen Hamed Ahmed Alnor , Mohammed Siddig Younis
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Abstract:
Background: Fresh vegetables are eaten raw and may also be a source of food-borne parasitic infections. This study aimed to detect the prevalence of intestinal parasites in raw edible vegetables in Wad Medani central vegetables market. Methods: A total of 90 samples of seven raw edible vegetables were selected and examined using formal ethyl acetate concentration technique, zinc sulphate flotation technique and modified cold Ziel-Neelsen stain, these vegetables were garden rocket, snake cucumber, carrot, lettuce, green onion, green pepper and tomato Result: the overall contamination was 27.7% and contamination rate for each vegetable 45%, 33.3%, 30%, 40%, 27.3%, 8.3% and 0% for garden rocket, snake cucumber, carrot, lettuce, green onion, green pepper and tomato respectively, vegetables were categorized to leafy, peeled and others, the rate of contamination for each category was 52%, 44% and 4% respectively. Also some vegetables samples were taken before and some samples after distribution in the market by the local sellers, vegetables before distribution show 16.16% contamination and after distribution show 36.36% contamination. The parasites detected were Giardia lamblia cyst, Entamoeba histolytica cyst, Entamoeba coli cyst, Taenia species egg and Hymenolepis nana egg, the prevalence of these parasites were 48%, 16%, 12%,12% and 12% respectively. 11(44%) of the parasites were detected by formal ethyl acetate concentration technique and 14 (56%) by zinc sulphate flotation concentration technique. There is no oocyst of Cryptosporidium parvum or Isospora belli detected using modified Ziel-Neelsen stain. Conclusion: This study concluded that there is high contamination of vegetables by intestinal parasites suggesting a great risk of acquiring intestinal parasitic infection by eating improperly washed vegetables.
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