Prevalencias de las geohelmintiasis intestinales en 100 municipios de Venezuela (1989-1992)

Ga, Morales; L, Pinto de Morales; Arteaga, C; Matinella, Liboria; Rojas, Hugo AndrÃ©s GutiÃ©rrez

doi:10.1590/s0037-86821999000300007

Cited by 7 publications

(8 citation statements)

References 11 publications

(8 reference statements)

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“…In Venezuela, most of the people lives in poverty with favorable conditions for the survival and transmission of intestinal parasites, which remain highly endemic. [26][27][28] Most (80.6%) of our patients resided in poor sectors. Although background rates of microsporidiosis in Venezuela are unknown, the high endemicity of intestinal parasites in Zulia State 26,27 and evidence that latent microsporidial infections are common in healthy populations [13][14][15] suggest that microsporidiosis in our patients might be a latent infection, rather than an opportunistic infection, that would become symptomatic with the progression of immunosuppression of the patients.…”

Section: Discussionmentioning

confidence: 99%

“…25 Therefore, studies concerning microsporidia in these patients are a compelling issue in Venezuela where high prevalences of intestinal parasites have been reported. [26][27][28] The objective of this study was to assess the prevalence of intestinal microsporidiosis and its contribution to diarrheal illness in a group of HIV-infected patients from Zulia State, Venezuela.…”

Section: Introductionmentioning

confidence: 99%

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Microsporidiosis in Venezuela: Prevalence of Intestinal Microsporidiosis and Its Contribution to Diarrhea in a Group of Human Immunodeficiency Virus–infected Patients From Zulia State

Chacín-Bonilla

Panunzio²,

Monsalve-Castillo³

et al. 2006

The American Journal of Tropical Medicine and Hygiene

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Microsporidia are recognized as a cause of morbidity among patients infected with the human immunodeficiency virus (HIV). Infection rates for intestinal microsporidiosis in HIV-infected patients from Venezuela are unknown. To determine the prevalence and pathogenic role of microsporidia in these patients in northwestern Venezuela, a case control study was conducted in 103 outpatients (mean +/- SD age = 37.3 +/- 5.6 years). Microsporidia were detected using unconcentrated formalin-fixed stools examined by Weber's chromotrope-based staining method. For identification of coccidia, modified Ziehl-Neelsen carbolfuchsin staining of formalin-ether concentrates were used, and for other pathogenic parasites, iron hematoxylin-stained smears and formalin-ether concentrates were examined. Microsporidial infections were detected in 14 (13.6%) of 103 patients and 39 (37.9%) had other parasitic pathogens. No significant difference was noted in the occurrence of the infection in patients with diarrhea (13 of 74, 17.6%) and controls (1 of 29, 3.4%) (P = 0.118). Nevertheless, this result may be due to the small sample size (n = 14) of infected individuals. The proportions of other pathogens in patients with or without diarrhea were not significantly different (P = 0.828). Microsporidiosis is common among the HIV-infected population in northwestern Venezuela. However, its pathogenic role in these patients is uncertain and warrants further investigation.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microsporidiosis in Venezuela: Prevalence of Intestinal Microsporidiosis and Its Contribution to Diarrhea in a Group of Human Immunodeficiency Virus–infected Patients From Zulia State

Chacín-Bonilla

Panunzio²,

Monsalve-Castillo³

et al. 2006

The American Journal of Tropical Medicine and Hygiene

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“…Como en otros estudios, en la presente investigación no se detectó asociación estadísticamente significativa entre las variables parasitosis, sexo y edad de los niños (27-34), aunque la mayor 8%), probablemente esto se deba a la poca variación existente en las edades de los niños estudiados ya que pertenecen a un grupo que comparte actividades similares y, en general, no tienen hábitos higiénicos bien establecidos por lo que presentan la misma posibilidad de infección con las formas infectantes de los parásitos que pueden encontrarse en el medio ambiente (30, 36). Los helmintos, en particular los geohelmintos, tuvieron una elevada prevalencia, lo cual se esperada por tratarse de una comunidad con todas las condiciones ecoepidemiológicas para ello (1, 8,11,37). Otros estudios realizados en escolares de comunidades rurales y suburbanas han mostrado resultados similares en diversas regiones de Venezuela (34,38).…”

Section: Discussionunclassified

“…En el caso de T. trichiura, que fue uno de los geohelmintos de mayor prevalencia (74,1%), los resultados coinciden con los de otros autores que lo señalan como el enteroparásito más común en Venezuela (11,28,34,(38)(39)(40) y el Estado Bolívar (31, 41) principalmente en comunidades rurales.…”

Section: Discussionunclassified

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Parasitosis intestinales en escolares: relación entre su prevalencia en heces y en el lecho subungueal.

Rumhein¹,

Sánchez²,

Requena³

et al. 2005

Rev Biomed

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Introducción. Los parásitos intestinales de forma general son transmitidos a través de la ingestión de agua y/o alimentos contaminados con formas infectantes. También se ha llamado la atención acerca del papel del lecho subungueal como posible diseminador de enteropatógenos en personas con hábitos de higiene inadecuados. Objetivo. Determinar la prevalencia de parásitos intestinales en las heces y en el lecho subungueal en escolares de la U.E.E. Teresa de la Parra del Barrio Buen Retiro en San Félix, Estado Bolívar, Venezuela. Material y Métodos. De mayo a julio de 2003 fueron evaluados 344 niños, entre 6 y 15 años. De cada uno fue obtenida una muestra de heces y analizada mediante la técnica de examen directo y los métodos de concentración de Willis y formol-éter. También fueron colectadas muestras de uñas y material subungueal siendo analizadas mediante la técnica de formol-éter. Resultados. La prevalencia de parásitos en heces fue de 97.4% (335/344). No hubo predilección en cuanto a la edad (χ2 = 6.2; g.l. = 4) o sexo de los parasitados (p › 0,05). Los protozoarios fueron más prevalentes, destacando Blastocystis hominis con 76.2%. Entre los helmintos el más común fue Trichuris trichiura con 74.1%. La prevalencia de estadios parasitarios en el deposito subungueal fue de 3.6% (11/307), siendo A. lumbricoides y E. coli los más comunes. No hubo relación entre la presencia de parásitos en el lecho subungueal y en las heces. Conclusiones. Se determinó una elevada prevalencia de parasitosis intestinales en los escolares evaluados. Aunque se demostró la importancia del lecho subungueal como diseminador de enteroparásitos, este mecanismo no parece ser el principal implicado en la cadena epidemiológica de estas parasitosis en los niños estudiados.

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Household social determinants of ascariasis and trichuriasis in North Central Venezuela

Quintero

Durán

Duri

et al. 2012

International Health

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Ascariasis and trichuriasis are highly prevalent parasitoses in tropical countries caused by Ascaris lumbricoides and Trichuris trichiura, respectively. Their prevalence is associated with poor sanitation and hygiene, among other biological and social factors. In this study, the associations of household social determinants with these soil-transmitted helminthiases in North Central Venezuela was assessed in the context of a National Study on Human Growth and Development (SENACREDH). This was a probabilistic, stratified, cross-sectional survey with a sample of 3388 individuals that weighted represents 4 675 433 inhabitants from the region. The prevalence of ascariasis and trichuriasis was 3.73% and 1.13%, respectively. In the univariate and multivariate analyses, these prevalences were significantly higher in those living in vulnerable houses [adjusted OR (AOR) = 1.479, 95% CI 1.428-1.532; and AOR = 10.519, 95% CI 9.971-11.097, respectively], houses located in rural areas (AOR = 2.067, 95% CI 2.035-2.101; and AOR = 1.918, 95% CI 1.868-1.970, respectively) and houses with a soil floor (AOR = 5.027, 95% CI 4.895-5.162; and AOR = 5.190, 95% CI 4.944-5.448, respectively), among other factors. People living in rural households with inappropriate building materials, insufficient basic public services such as water and waste disposal, and surrounding disease-prone environments are at higher risk of acquiring A. lumbricoides and T. trichiura infections.

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Prevalencias de las geohelmintiasis intestinales en 100 municipios de Venezuela (1989-1992)

Abstract: Resumen El examen coproparasitológico (técnica de Kato-Katz)

Cited by 7 publications

References 11 publications

Microsporidiosis in Venezuela: Prevalence of Intestinal Microsporidiosis and Its Contribution to Diarrhea in a Group of Human Immunodeficiency Virus–infected Patients From Zulia State

Microsporidiosis in Venezuela: Prevalence of Intestinal Microsporidiosis and Its Contribution to Diarrhea in a Group of Human Immunodeficiency Virus–infected Patients From Zulia State

Parasitosis intestinales en escolares: relación entre su prevalencia en heces y en el lecho subungueal.

Household social determinants of ascariasis and trichuriasis in North Central Venezuela

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