Examinando por Materia "Nematode Infections"

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    Prevalencia de protozoos y nematodos en tubérculos que son consumidos crudos, expendidos por los agricultores del distrito de Ate, 2012
    (Universidad Privada Norbert Wiener, 2013) Sifuentes Rosales, Dianne Lindsay; Guillen Zavaleta, Zoila Flor
    This study aimed to determine the prevalence of protozoa and nematodes in raw-consumed tubers such as Raphanus sativus (radish), Daucus carota (carrot), Beta vulgaris (beet), and Brassica napus (turnip), sold by farmers in the district of Ate in June 2012. Eighty samples from 20 cultivation fields were analyzed through direct examination and centrifugation methods. The results showed that 78.75% of the samples were positive for protozoa and nematodes. The identified species included Acanthamoeba sp., Balantidium coli, Naegleria sp., Strongyloides stercoralis, Toxocara canis, free-living amoebae, ciliates, Endolimax nana, Vorticella sp., and nematodes sp. Among the analyzed tubers, radish (Raphanus sativus) was the most contaminated. The main contamination factors were clay soils, irrigation water from stagnant canal sources, and washing tubers with the same stagnant canal water prior to commercialization. In conclusion, the high prevalence of contamination represents a considerable infection risk for consumers of these tubers in the district of Ate. The findings suggest the need to reinforce sanitary surveillance before these products are distributed to the population.