RESUMO
Las enfermedades parasitarias tienen amplia distribución mundial, y a pesar de los esfuerzos de los organismos de salud, siguen siendo un problema especialmente en los países en vias de desarrollo como el nuestro. El objetivo del presente trabajo, debidamente evaluado por la Comisión Nacional para el Desarrollo de la Bioética en Paraguay, fue la de determinar la tasa de frecuencia de enteroparásitos en niños y niñas del primer ciclo de la Educación Escolar Básica de Ciudad del Este (Paraguay). En el periodo de setiembre a diciembre del año 2006, fueron visitadas 48 escuelas públicas, durante el cual se recolectó muestras de materia fecal de 388 niños y niñas entre 7 a 9 años escogidos aleatoriamente. Las muestras colectadas fueron examinadas por cuatro métodos para la búsqueda de enteroparásitos, el Directo en fresco, Faust, Ritchie and Lutz. El porcentaje de las muestras positivas fue de 94,23%, donde fueron identificados siete tipos de protozoarios y cinco tipos de helmintos. La frecuencia de los enteroparásitos hallados en la población estudiada fue la siguiente: Giardia duodenalis 67%, Entamoeba coli 52%, Blastocystis hominis 45%, Endolimax nana 31%, Chilomastix mesnili 8%, Iodamoeba butschilii 3%, Entamoeba histolytica 2%, Hymenolepis nana 12%, Enterobius vermicularis 1%, Strongyloides stercoralis 2%, Ascaris lumbricoides 1% y Uncinarias 2%.
Parasitic diseases have worldwide distribution and, despite the efforts of healthorganizations, remain a problem specially in developing countries like ours. The objectiveof this work, evaluated by the National Commission for Development of ethics inParaguay, was to determine the frequency rate of enteroparasites in children of the firstcycle of the basic education of public schools in Ciudad Del Este (Paraguay). In the periodbetween September and December 2006, 48 public schools were visited and fecalsamples of 388 children, who were between 7 and 9 years old and randomly selected,were collected. The collected samples were examined by four methods for entereoparasitesearch: Direct examination of fresh feces, Faust, Ritchie and Lutz. The percentage ofpositive samples was 94.23% and seven species of protozoans and five species ofhelminths were identified. The frequency of the enteroparasites in the population studiedwas as follows: Giardia duodenalis 67%, Entamoeba coli 52%, Blastocystis hominis 45%,Endolimax nana 31%, Chilomastix mesnili 8%, Iodamoeba butschilii 3%, Entamoebahistolytica 2%, Hymenolepis nana 12%, Enterobius vermicularis 1%, Strongyloidesstercoralis 2%, Ascaris lumbricoides 1% and Uncinarias 2%.
Assuntos
Humanos , Masculino , Feminino , Criança , Infecções por Protozoários , Enteropatias Parasitárias , Saúde da CriançaRESUMO
A study of 94 slugs, collected from urban and rural areas in and around Léon, Nicaragua, was carried out in order to confirm the role of Vaginulus plebeius as an intermediate host of Angiostronglylus costaricensis. Third-stage larvae of A. costaricensis were obtained from these molluscs. Some of these larvae were then orally inoculated into two laboratory-bred rats Sigmodon hispidus and adult worms of A. costaricensis were recovered two months later. The infection rate of these slugs ranged from 4% in urban areas to 85% in rural areas. These data suggest that contamination to man is a major risk especially in rural areas and that abdominal angiostrongyliasis could be a health problem in Nicaragua.
Assuntos
Angiostrongylus , Moluscos/parasitologia , Infecções por Strongylida/epidemiologia , Animais , Humanos , Nicarágua , Ratos , RoedoresRESUMO
A retrospective study was done to determine the presence of abdominal angiostrongyliasis in Nicaragua. Twelve cases of this parasitic disease were found among 48 visceral specimens: small intestine, liver and testes. The patients with intestinal lesions presented symptoms of an acute abdomen, and in some instances, a tumor-like mass was palpated in the lower right quadrant. A thickening of the intestinal wall accompanied by necrosis and perforation were the most important macroscopic findings. One patient with hepatic localisation of Angiostrongylus costaricencis displayed a clinical picture of visceral larva migrans-like syndrome. The chief laboratory findings were leukocytosis and eosinophilia. The histopathological examination showed granulomas and heavy eosinophilic infiltration around the eggs and larvae of A. costaricencis. Also, an adult worm was seen in one biopsy.