Investigou-se a presença de formas evolutivas de enteroparasitos em alfaces (Lactuca sativa) vendidas em diferentes áreas de distribuição urbanas em Ituiutaba, Minas Gerais. Foram analisados 72 pés de alface, utilizando as técnicas de sedimentação espontânea e de Ritchie, com o intuito de encontrar cistos e ovos de enteroparasitos. Observou-se a presença de enteroparasitos em 75% das amostras oriundas de sacolões, sendo, Endolimax nana (90,7%), ascarídeos (29,6%), ancilostomídeos (18,5%), Strongyloides sp. (16,7%), Entamoeba histolytica/E. dispar (9,2%) e Entamoeba coli (3,7%). Das amostras advindas das feiras livres, 16,7% foram positivas, sendo, E. nana (91,7%), ancilostomídeos (33,3%), ascarídeos (25%), E. histolytica/E. dispar (16,7%) e Strongyloides sp. (8,3%). Quanto às alfaces da horta, 8,4% mostraram-se positivas, sendo, E. nana (66,6%), ascarídeos (50%), Strongyloides sp. (16,7%), E. histolytica/E. dispar (16,7%) e Toxocara sp. (16,7%). As alfaces comercializadas em diferentes estabelecimentos da área estudada apresentaram condições de higiene, manipulação e acondicionamento inadequados.
Intestinal parasites are among the most commonly found pathogens in humans and are considered a public health problem. The frequency of intestinal parasites was evaluated in children and staff at two day care centers in the city of Ituiutaba, Brazil and health encouragement activities were developed. For parasite detection in stool samples the Ritchie's technique and the Hoffman-Pons-Janer, Baermann-Moraes, Willis and Ziehl-Neelsen methods were applied. Of 140 children, 88 (62.9%) were positive, where Giardia intestinalis cysts were present in 65 children (51.1%), Entamoeba coli in 22 (17.3%), Endolimax nana in 12 (9.4%), Entamoeba histolytica/E. dispar in 9 (7%), Hymenolepis nana eggs were found in 5 (4%), hookworms in 4 (3.1%), Ascaris lumbricoides and Enterobius vermicularis in 3 (2.3%) and Strongyloides stercoralis, Trichuris trichiura, Cryptosporidium spp. and Iodamoeba butschlii in one child (0.8%). Among the 41 employees examined, 10 (24.3%) were positive, E. coli cysts were found in 6 samples (35.2%) and E. nana in 5 (29.4%), followed by E. histolytica/E. dispar in 4 (23.6%) and G. intestinalis and E. vermicularis eggs in (5.9%). The data show the high frequency of intestinal parasites in fecal samples analyzed and demonstrate the importance of adopting preventive measures such as health and education involving the community.
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