Seroprevalence of Toxoplasma gondii and Neospora caninum in sheep in Uruguay

Seroprevalence of Toxoplasma gondii and Neospora caninum in sheep in Uruguay

The objective of this study was to estimate the true prevalence of seropositive individual sheep against Toxoplasma gondii and Neospora caninum in Uruguay using the Rogan–Gladen estimator in combination with Monte Carlo simulation. Ten herds were kept under observation in 2008. Each study herd was randomly selected at different farms recruited from the Departments of Artigas, Salto and Canelones. The required total sample size was determined by power analysis, and blood samples collected were analysed using a commercial ELISA for the detection of antibody to the two pathogens mentioned above. The overall seroprevalence of Toxoplasma gondii and Neospora caninum were estimated at 38.9% (5th percentile of 36.5%; 95th perc. of 41.4%; N = 1361) and 0.7% (5th percentile of 0.1%; 95th perc. of 1.4%; N = 1357), respectively. Establishing prevalence distributions using Monte Carlo simulation could be useful for further risk assessment.

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Main Authors: Suzuki, K, Corva, SG, Travería, G, Cattáneo, M, Puentes, R, Martinicorena, M, Moreno, J, Furtado, A, Freyre, A, Satragno, D, Acevedo, C, Núñez, R, Bermúdez, J
Format: Digital revista
Language:spa
Published: Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata 2011
Online Access:https://revistas.unlp.edu.ar/analecta/article/view/12388
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spelling rev-analecta-ar-article-123882021-07-12T12:55:06Z Seroprevalence of Toxoplasma gondii and Neospora caninum in sheep in Uruguay Seroprevalencia de Toxoplasma gondii y Neospora caninum en ovinos de Uruguay Suzuki, K Corva, SG Travería, G Cattáneo, M Puentes, R Martinicorena, M Moreno, J Furtado, A Freyre, A Satragno, D Acevedo, C Núñez, R Bermúdez, J epidemiology ovine South America epidemiología ovino Sudamérica The objective of this study was to estimate the true prevalence of seropositive individual sheep against Toxoplasma gondii and Neospora caninum in Uruguay using the Rogan–Gladen estimator in combination with Monte Carlo simulation. Ten herds were kept under observation in 2008. Each study herd was randomly selected at different farms recruited from the Departments of Artigas, Salto and Canelones. The required total sample size was determined by power analysis, and blood samples collected were analysed using a commercial ELISA for the detection of antibody to the two pathogens mentioned above. The overall seroprevalence of Toxoplasma gondii and Neospora caninum were estimated at 38.9% (5th percentile of 36.5%; 95th perc. of 41.4%; N = 1361) and 0.7% (5th percentile of 0.1%; 95th perc. of 1.4%; N = 1357), respectively. Establishing prevalence distributions using Monte Carlo simulation could be useful for further risk assessment. El objetivo del presente estudio fue estimar la prevalencia verdadera de ovejas seropositivas a Toxoplasma gondii y Neospora caninum en Uruguay, mediante el uso del estimador Rogan–Gladen en combinación con la simulación Monte Carlo. Diez rebaños fueron observados durante el año 2008. Cada rebaño bajo estudio fue seleccionado al azar de establecimientos pertenecientes a los Departamentos de Artigas, Salto y Canelones. El tamaño de muestra fue determinado por el poder estadístico del análisis. Las muestras de sangre fueron analizadas mediante un ELISA comercial para la detección de anticuerpos contra los dos parásitos mencionados anteriormente. La seroprevalencia global para Toxoplasma gondii y Neospora caninum fue estimada en 38.9% (36.5% para el percentil 5; 41.4% para el percentil 95; N = 1361) y 0.7% (0.1% para el percentil 5; 1.4% para el percentil 95; N = 1357), respectivamente. Establecer la distribución de prevalencia mediante la simulación de Monte Carlo podría ser de utilidad para futuros análisis de riesgo. Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata 2011-01-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Research Articles Trabajos de Investigación application/pdf https://revistas.unlp.edu.ar/analecta/article/view/12388 Analecta Veterinary; Vol. 31 No. 2 (2011): Analecta Veterinaria; 28-32 Analecta Veterinaria; Vol. 31 Núm. 2 (2011): Analecta Veterinaria; 28-32 Analecta Veterinaria; Vol. 31 No. 2 (2011): Analecta Veterinaria; 28-32 Analecta Veterinaria; v. 31 n. 2 (2011): Analecta Veterinaria; 28-32 1514-2590 0365-5148 spa https://revistas.unlp.edu.ar/analecta/article/view/12388/11202
institution UNLP AR
collection OJS
country Argentina
countrycode AR
component Revista
access En linea
databasecode rev-analecta-ar
tag revista
region America del Sur
libraryname Biblioteca de la Facultad de Ciencias Veterinarias de la UNLP Argentina
language spa
format Digital
author Suzuki, K
Corva, SG
Travería, G
Cattáneo, M
Puentes, R
Martinicorena, M
Moreno, J
Furtado, A
Freyre, A
Satragno, D
Acevedo, C
Núñez, R
Bermúdez, J
spellingShingle Suzuki, K
Corva, SG
Travería, G
Cattáneo, M
Puentes, R
Martinicorena, M
Moreno, J
Furtado, A
Freyre, A
Satragno, D
Acevedo, C
Núñez, R
Bermúdez, J
Seroprevalence of Toxoplasma gondii and Neospora caninum in sheep in Uruguay
author_facet Suzuki, K
Corva, SG
Travería, G
Cattáneo, M
Puentes, R
Martinicorena, M
Moreno, J
Furtado, A
Freyre, A
Satragno, D
Acevedo, C
Núñez, R
Bermúdez, J
author_sort Suzuki, K
title Seroprevalence of Toxoplasma gondii and Neospora caninum in sheep in Uruguay
title_short Seroprevalence of Toxoplasma gondii and Neospora caninum in sheep in Uruguay
title_full Seroprevalence of Toxoplasma gondii and Neospora caninum in sheep in Uruguay
title_fullStr Seroprevalence of Toxoplasma gondii and Neospora caninum in sheep in Uruguay
title_full_unstemmed Seroprevalence of Toxoplasma gondii and Neospora caninum in sheep in Uruguay
title_sort seroprevalence of toxoplasma gondii and neospora caninum in sheep in uruguay
description The objective of this study was to estimate the true prevalence of seropositive individual sheep against Toxoplasma gondii and Neospora caninum in Uruguay using the Rogan–Gladen estimator in combination with Monte Carlo simulation. Ten herds were kept under observation in 2008. Each study herd was randomly selected at different farms recruited from the Departments of Artigas, Salto and Canelones. The required total sample size was determined by power analysis, and blood samples collected were analysed using a commercial ELISA for the detection of antibody to the two pathogens mentioned above. The overall seroprevalence of Toxoplasma gondii and Neospora caninum were estimated at 38.9% (5th percentile of 36.5%; 95th perc. of 41.4%; N = 1361) and 0.7% (5th percentile of 0.1%; 95th perc. of 1.4%; N = 1357), respectively. Establishing prevalence distributions using Monte Carlo simulation could be useful for further risk assessment.
publisher Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata
publishDate 2011
url https://revistas.unlp.edu.ar/analecta/article/view/12388
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