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Título : Human brucellosis in northwest Ecuador typifying Brucella spp seroprevalence and associated risk factors.
Autor : Celi Erazo, Maritza Liliana
Ron Román, Jorge
Ron Garrido, Lenin
Abatih, Emmanuel
Vizcaíno Ordóñez, Laura
Calva Pacheco, Jaime
González Andrade, Pablo
Berkvens, Dirk
Benítez Ortiz, Washington Vicente
Brandt, Jef
Fretin, David
Saegerman, Claude
Palabras clave : BRUCELOSIS
HUMANOS
ECUADOR
PRUEBAS SEROLÓGICAS
PREVALENCIA VERDADERA
FACTORES DE RIESGO
BRUCELLA ABORTUS BIOTYPE 4
Fecha de publicación : 2014
Editorial : Boston : ResearchGate
Citación : Celi Erazo, Maritza y otros (2014). Human brucellosis in northwest Ecuador typifying Brucella spp seroprevalence and associated risk factors. Vector borne and zoonotic diseases, 14 (2): 124-133
Resumen : Human brucellosis in Ecuador is underreported and based only on passive surveillance. Since 2008, brucellosis was removed from the list of communicable diseases in the country. Until now, the true human brucellosis picture has not yet been determined. The aim of this study was to determine the seroprevalence of the disease, identify risk factors associated with brucellosis seropositivity in humans, and isolate circulating strains of Brucella spp. in the northwestern part of Ecuador. Between 2006 and 2008, a large transect survey was conducted, based on blood sampling of people from the northwestern part of Ecuador (n = 3733) together with an epidemiological inquiry. On the basis of three diagnostic tests used in parallel, the overall seroprevalence was estimated as 1.88% (95% confidence interval [CI] 1.48–2.38). Based on a multivariable random effects logistic regression analysis, the main risk factors associated with human brucellosis seropositivity were contact with livestock (odds ratio [OR] = 3.0; CI 1.25–7.08), consumption of fetus and placenta (OR= 2.5; CI 1.18–5.22), and involvement in activities at risk for brucellosis infection (OR= 1.8; CI 1.00–3.35). Noticeable variation in brucellosis seropositivity among humans within cantons was observed. The circulating strain was Brucella abortus biotype 4. This study emphasized that contact with livestock, consumption of fetus and placenta, and occupational hazard group were all significant risk factors for the transmission of brucellosis among individuals in the northwestern part of Ecuador. Alongside encouraging the launching of educational campaigns against brucellosis, especially in rural areas where 36% of the population lives, controlling this zoonotic disease in animals will directly benefit its prevention in humans, especially because there is no safe and efficacious vaccine against brucellosis in humans.
URI : http://www.dspace.uce.edu.ec/handle/25000/14936
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