Vigilancia epidemiológica al virus del Oeste del Nilo en municipios del Departamento del Meta
Vigilancia epidemiológica al virus del Oeste del Nilo en municipios del Departamento del Meta
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Objective. Identify the presence of West Nile virus in horses and mosquitoes in eight municipalities of the department of Meta. Materials and methods. The research was supported by the Bioethics Committee of the University of Los Llanos. 613 samples of Creole and quarter-mile equine horses, intended for sports and work activities, with an age range of 2 to 15 years, were analyzed using serological and molecular tests in the transects: Villavicencio-Restrepo-Cumaral, San Martín- Castilla la Nueva-Granada and Puerto López-Puerto Gaitán, analyzed in 62 pools and 213 mosquitoes. The pool of sera of horses and mosquitoes were analyzed by ELISA and PCR. Results. No seropositive animals were found by the ELISA test and molecular tests were also negative. Conclusions. Although in this study the presence of IgM antibodies was not evidenced by the Elisa technique, and molecular tests (RT-PCR) were also negative for viral circulation, in the municipalities under study, it is important to indicate that the molecular detection in sera, it requires representative levels of viremia and that the animal is in the acute phase of the disease. Although it is possible that the equine population remains free of contact with the virus, epidemiological surveillance should be maintained against this important pathogen for human health, especially due to the outbreak of other zoonotic viruses such as Eastern Equine Encephalitis and Encephalitis Venezuelan Equine in the departments of Meta and Casanare, adjacent to this.
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