Situación y distribución de la brucelosis bovina en la provincia de Formosa, Argentina
; Viola, María Nair
; Russo, Ana Maria
; Lozina, Laura Analía
; Signorini Porchietto, Marcelo Lisandro 
Otros responsables
Fecha
12/2023
Editorial
Universidad Nacional Mayor de San Marcos. Facultad de Medicina Veterinaria
Revista
Revista de Investigaciones Veterinarias del Perú
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Institución organizadora
ISSN
1609-9117
eISSN
1682-3419
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Español
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Resumen
El objetivo del trabajo fue actualizar la información epidemiológica de la brucelosisen la provincia de Formosa, Argentina, con base de registros provenientes del Centro deInvestigaciones y Transferencia durante el periodo 2018-2021. Se analizaronserológicamente 151 218 muestras de sueros bovinos provenientes de 1953 establecimientos de provincia de Formosa. El análisis de los datos se hizo mediante una regresiónlogística. Se evaluó la presencia de clústeres de asociación espacial para poblacionescon distribución heterogénea escaneando un grupo de datos menor al 50% de la población bajo riesgo. La distribución de rodeos positivos a brucelosis fue asumida como unadistribución Bernoulli. La prevalencia de brucelosis bovina fue de 0.88%, mientras que lade rodeos positivos a brucelosis fue de 17.1%. La prevalencia intra-rodeo fue de 5.73%(IC95% 0.34-24.18%). En 2018 se observó una prevalencia de 0.44% con incrementos en2019 (1.77%) y 2021 (0.52%). El análisis espacial identificó cuatro clústeres significativos,dos de ellos de mayor riesgo de presentar la enfermedad y dos de menor riesgo, presentando valores de Riesgo Relativo (RR) de 3.92, 30.13, 0.02 y 0.014, respectivamente. Laenfermedad continua presente en la provincia con prevalencias elevadas, concentrándose en las zonas centro y este de la provincia de Formosa.
The aim of this study was to update the epidemiological information of brucellosis in the province of Formosa, Argentina, based on records from the Research and Transfer Centre during the 2018-2021 period. In total, 151 218 samples of bovine sera from 1953 establishments in the province of Formosa were serologically analysed. Data analysis was done using logistic regression. The presence of spatial association clusters for populations with heterogeneous distribution was evaluated by scanning a data group less than 50% of the population at risk. The distribution of herds positive for brucellosis was assumed as a Bernoulli distribution. The prevalence of bovine brucellosis was 0.88%, while that of herds positive for brucellosis was 17.1%. The intra-herd prevalence was 5.73% (95% CI 0.34-24.18%). In 2018, a prevalence of 0.44% was observed with increases in 2019 (1.77%) and 2021 (0.52%). The spatial analysis identified four significant clusters, two of them with a higher risk of developing the disease and two with a lower risk, presenting Relative Risk (RR) values of 3.92, 30.13, 0.02 and 0.014, respectively. The disease continues to be present in the province with high prevalence, concentrating in the central and eastern areas of the province of Formosa.
The aim of this study was to update the epidemiological information of brucellosis in the province of Formosa, Argentina, based on records from the Research and Transfer Centre during the 2018-2021 period. In total, 151 218 samples of bovine sera from 1953 establishments in the province of Formosa were serologically analysed. Data analysis was done using logistic regression. The presence of spatial association clusters for populations with heterogeneous distribution was evaluated by scanning a data group less than 50% of the population at risk. The distribution of herds positive for brucellosis was assumed as a Bernoulli distribution. The prevalence of bovine brucellosis was 0.88%, while that of herds positive for brucellosis was 17.1%. The intra-herd prevalence was 5.73% (95% CI 0.34-24.18%). In 2018, a prevalence of 0.44% was observed with increases in 2019 (1.77%) and 2021 (0.52%). The spatial analysis identified four significant clusters, two of them with a higher risk of developing the disease and two with a lower risk, presenting Relative Risk (RR) values of 3.92, 30.13, 0.02 and 0.014, respectively. The disease continues to be present in the province with high prevalence, concentrating in the central and eastern areas of the province of Formosa.
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