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      Comparación de técnicas coproparasitológicas para el diagnóstico de geohelmintos intestinales en niños Lambayecanos Translated title: Comparison of coproparasitological techniques for the diagnosis of intestinal helminths in Lambayeca children

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          Abstract

          Resumen Los helmintos transmitidos a través del suelo pueden afectar el desempeño educativo y desenvolvimiento normal de los niños. Objetivo: comparar cinco técnicas coproparasitológicas para el diagnóstico de geohelmintos intestinales en niños lambayecanos. Métodos: estudio descriptivo de corte transversal. Se recolectaron 150 muestras de materia fecal de niños que residían en los distritos de Túcume y Lambayeque en el departamento de Lambayeque (Perú), durante el año 2021. Los niños y niñas tenían entre 4 y 12 años de edad. Previo a la recolección, se les explicó a los padres de familia y apoderados de los menores las condiciones preclínicas adecuadas. Se calculó la sensibilidad, especificidad, concordancia, valor predictivo positivo y negativo de las técnicas de Baerman, sedimentación rápida, Willis Molloy, Sheathers Sugar y examen directo de heces. Los padres y apoderados autorizaron la participación de los menores en el estudio. El estudio contó con la aprobación del comité de ética de la Universidad Nacional de Jaén. Resultados: la prevalencia geohelmintos intestinales fue del 20,7%, 19,3% y 18,0% con las técnicas de Baerman, sedimentación rápida y examen directo, respectivamente. Además, las técnicas de Baerman y de sedimentación rápida reportaron mayor sensibilidad, especificidad, valor predictivo positivo y negativo. Se obtuvo alto índice de concordancia para las técnicas de Baerman (0,894) y sedimentación rápida (0,891). Conclusiones: las técnicas de Baerman y de sedimentación rápida permitieron mayor recuperación de parásitos, respecto al examen directo. Además, las especies de geohelmintos intestinales más identificadas en niños lambayecanos fueron Ascaris lumbricoides, Hymenolepis nana y Ancilostomideos.

          Translated abstract

          Abstract Helminths transmitted through the soil can affect the educational performance and normal development of children. Objective: to compare five coproparasitological techniques for the diagnosis of intestinal geohelminths in Lambayecan children. Methods: Descriptive cross-sectional study. 150 stool samples were collected from children residing in the districts of Túcume and Lambayeque in the department of Lambayeque (Peru), during the year 2021. The boys and girls included were between 4 and 12 years of age. Prior to the collection, the appropriate preclinical conditions are explained to the parents and guardians of the minors. The sensitivity, specificity, concordance, positive and negative predictive value of the Baerman, rapid sedimentation, Willis Molloy, Sheathers Sugar and direct stool examination techniques were calculated. Parents and guardians authorized the participation of minors in the study. The study was approved by the ethics committee of the National University of Jaén. Results: the prevalence of intestinal geohelminths was 20,7%, 19,3% and 18,0% with the Baerman, rapid sedimentation and direct examination techniques, respectively. In addition, the Baerman and rapid sedimentation techniques reported higher sensitivity, specificity, positive and negative predictive value. A high concordance index was obtained for the Baerman (0,894) and rapid sedimentation (0,891) techniques. Conclusions: the Baerman and rapid sedimentation techniques allowed greater recovery of parasites compared to direct stool examination. In addition, the species of intestinal geohelminths most identified in children from Lambaye were Ascaris lumbricoides, Hymenolepis nana and Ancilostomideos.

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          Working to overcome the global impact of neglected tropical diseases: first WHO report on neglected tropical diseases

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            Prevalence and intensity of soil transmitted helminths among school children of Mendera Elementary School, Jimma, Southwest Ethiopia

            Introduction Soil transmitted helminths are wide spread in developing countries and in Ethiopia the prevalence of STHs varies in different parts of the country. The aim of this study was to determine the prevalence and intensity of soil transmitted helminths among school children of Mendera Elementary School Jimma town, Southwestern Ethiopia. Methods A cross-sectional study was conducted between March 29 and April 9, 2010 to determine the prevalence and intensity of soil transmitted helminths among elementary school children. The study participants were randomly selected from class enrollment list after proportional allocation of the total sample size to each grade. Data about the background characteristics were collected using structured questionnaire. The stool samples were examined by McMaster method for the egg count which was used to determine intensity of infection. Data were analyzed using SPSS for windows version 16 and p-value less than 5% was considered as statistically significant. Results Of the total 715 stool specimens examined, 346 were positive for at least one intestinal parasite making the prevalence 48.4%. The most prevalent parasites were Ascaris lumbricoides 169 (23.6%) and Trichuris trichiura 165 (23.1%). The prevalence of soil transmitted helminth in this study was 45.6% (326/715). There was statistically significant difference in the prevalence of Trichuriasis between those who use latrine always and who use sometimes (p = 0.010). Females are two times more likely to be positive for Ascaris than males (p = 0.039). Majority of the students had light infection of soil transmitted helminths and none of them had heavy intensity of infection of Trichuriasis and hookworms. Conclusion Nearly half of the school children were infected with at least one STHs and majority of the students had light infection of soil transmitted helminths. Students who did not wash their hands after defecation were three times more likely to be positive for Ascaris infection than those who washed their hands after defecation. Therefore, measures like health information dissemination on the advantage of washing hands after defecation and on proper use of latrine should be taken into account to alleviate the problem.
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              Prevalence of Intestinal Helminths Infestation in Children Attending Princess Marie Louise Children's Hospital in Accra, Ghana

              The deworming exercise program does not cover all children who are not in school. This study determined the prevalence and species type of helminth infestation and associated factors among children attending Princess Marie Louise Children's Hospital in Accra, Ghana. Children (225) below the age of 10 who have not taken antihelminthic drugs prior to the study period were recruited between May and June 2015. Children or guardians were interviewed using structured questionnaires and fresh stools were collected and processed for helminths species identification using microscopy. Data were analyzed using Stata version 12. Overall helminths infestation prevalence was 17.33% (39/225). The identified species were hookworm (10.22% (23/225)) and Ascaris lumbricoides (7.11% (16/225)). No double infestation was observed. Significant associations were observed between infestation and age group beyond 4 years (48 months) (aOR = 16.72, 95% CI 1.00–279.72), place of residence (aOR = 7.35, 95% CI 1.68–32.11), washing hands after using toilet (0.04, 95% CI 0.01–0.20), and dirt on fingernails of children (7.96, 95% CI 1.73–36.65). This study demonstrates high prevalence of helminths parasites, hookworm, and Ascaris lumbricoides in children attending PMLCH. Deworming exercise should be extended to children hospitals in developing countries.
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                Author and article information

                Journal
                gmb
                Gaceta Médica Boliviana
                Gac Med Bol
                Facultad de Medicina de la Universidad Mayor de San Simón (Cochabamba, , Bolivia )
                1012-2966
                2227-3662
                2023
                : 46
                : 1
                : 72-76
                Affiliations
                [2] Cajamarca Cajamarca orgnameUniversidad Nacional de Jaén orgdiv1Facultad de Ciencias de la Salud Peru
                [4] Lambayeque orgnameUniversidad Nacional Pedro Ruiz Gallo Perú
                [3] Lambayeque orgnameUniversidad Nacional Pedro Ruiz Gallo orgdiv1Facultad de Ciencias Biológicas Perú
                [1] Lambayeque orgnameUniversidad Nacional Pedro Ruiz Gallo orgdiv1Facultad de Ciencias Biológicas Perú
                Article
                S1012-29662023000100072 S1012-2966(23)04600100072
                10.47993/gmb.v46i1.636
                52fbbacf-607c-4ac1-bae4-d577a6f788ee

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 18 November 2022
                : 20 February 2023
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 19, Pages: 5
                Product

                SciELO Bolivia

                Categories
                Artículo Original

                helminths,helminthiasis,parasites,parasitological analysis,infecciones por helmintos,helmintos,helmintiasis,parásitos,análisis parasitológico,helminth infections

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