Investigación microepidemiológica de Strongyloides stercoralis en ambientes domiciliarios de pacientes infectados con el Virus de la Inmunodeficiencia humana (VIH)
Carregando...
Data
2007
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
Existe una posible asociación entre la infección por parásitos intestinales de pacientes inmunosuprimidos y la con-
taminación de su ambiente domiciliar. Por eso, esta asociación fue estudiado a través de un estudio microepide-
miológico para determinar la presencia de helmintos y coccidios intestinales en muestras obtenidas de suelo, agua
y verduras de uso común y constante en las viviendas de los pacientes inmunosuprimidos (VIH+, linfocitos CD4
≥ 200 mL, carga viral ≈ 10 mil). Las muestras fueron seleccionadas por muestreo aleatorio y sistematizado. Para
el análisis del suelo fueron utilizadas las técnicas de Cadwell-Cadwell, Hoffmann, Pons & Janer (HPJ) y Kinyoun
modificado (caliente) mientras que para las muestras de agua y verdura fueron usadas HPJ, Faust, y la técnica de
filtración con filtro de propil-etileno. Nosotros encontramos larvas rabditiformes de Strongyloides stercoralis en
Allium fistolosum (cebollita china) cultivado en la huerta de la residencia de uno de los 11 pacientes evaluados.
Esta forma parasitaria a pesar de no ser infectante para el ser humano, es parte del ciclo biológico de S. stercoralis
y es fundamental para su multiplicación y manutención en el medio ambiente. Este hallazgo denota la importancia
ecológica del ser humano en la dinámica de la transmisión de las geohelmintiasis, y alerta la necesidad de instruir a
la población sobre medidas profilácticas e higiene, especialmente, de pacientes inmunosuprimidos.
A possible association between intestinal parasite infection in immunocompromised patients with and the contamina- tion their domiciliary environment may exist. Therefore, this correlation was studied through a study microepidemio- logic by determining the presence of helminths and intestinal coccidian in samples obtaneid from the floor, water and vegetables of common and constant use in houses of patients with the Human Immunodeficiency Virus (HIV+, CD4 lymphocytes ≥ 200 mL, viral load ≈ 10 thousand). The samples were selected by random and systematized sam- pling. For the analysis of the floor the techniques of Cadwell-Cadwell, Hoffmann, Pons & Janer (HPJ) and modified Kinyoun (hot) were used whereas HPJ, Faust, and the filtration technique with propilethylene filter were used for wa- ter and vegetables samples. We found rhabditiform larves of Strongyloides stercoralis in Allium fistolosum (Chinese onion) cultivated in the vegetable garden of one of the 11 patient’s. Although this parasitic form is a non-infective stage for the human, it makes part of the biological cycle of S. stercoralis and it is fundamental for its multiplication and maintenance in the environment. This finding denotes the human ecological importance in the dynamics of the transmission of geohelminths, and alerts to necessity of instructing the population on measured prophylaxes and hygiene, especially to immunocompromised patients.
A possible association between intestinal parasite infection in immunocompromised patients with and the contamina- tion their domiciliary environment may exist. Therefore, this correlation was studied through a study microepidemio- logic by determining the presence of helminths and intestinal coccidian in samples obtaneid from the floor, water and vegetables of common and constant use in houses of patients with the Human Immunodeficiency Virus (HIV+, CD4 lymphocytes ≥ 200 mL, viral load ≈ 10 thousand). The samples were selected by random and systematized sam- pling. For the analysis of the floor the techniques of Cadwell-Cadwell, Hoffmann, Pons & Janer (HPJ) and modified Kinyoun (hot) were used whereas HPJ, Faust, and the filtration technique with propilethylene filter were used for wa- ter and vegetables samples. We found rhabditiform larves of Strongyloides stercoralis in Allium fistolosum (Chinese onion) cultivated in the vegetable garden of one of the 11 patient’s. Although this parasitic form is a non-infective stage for the human, it makes part of the biological cycle of S. stercoralis and it is fundamental for its multiplication and maintenance in the environment. This finding denotes the human ecological importance in the dynamics of the transmission of geohelminths, and alerts to necessity of instructing the population on measured prophylaxes and hygiene, especially to immunocompromised patients.
Descrição
Palavras-chave
Strongyloides stercoralis, Helmintos, Allium fistolosum, Contaminación ambiental, Síndrome de Inmunodeficiencia Adquirida, Inmunosupresión, Strongyloides stercoralis, Environmental pollution, Helminths, Inmunossuppression, Inmunossuppression
Citação
CECCHETO, Fatima Helena et al. Investigación microepidemiológica de Strongyloides stercoralis en ambientes domiciliarios de pacientes infectados con el Virus de la Inmunodeficiencia Humana (VIH). Neotropical Helminthology, Lima, v. 1, n.1, p. 31-36, 2007.