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Revista Cubana de Medicina Tropical
versión On-line ISSN 1561-3054
Resumen
ALVAREZ VERA, Mayling et al. Normalización de la técnica de reducción de placas para diferenciar una infección por dengue de una infección por fiebre amarilla. Rev Cubana Med Trop [online]. 1998, vol.50, n.3, pp. 171-181. ISSN 1561-3054.
The plaque reduction neutralization assay was standardized to differentiate an infection caused by dengue from another infection produced by yellow fever. Serum samples from Cuban donors were used to this end. Information on previous vaccination against yellow fever was available. Samples from Costa Rican patients with a clinical picture of dengue and with no antecedents of vaccination against yellow fever were also utilized. The optimal plaque staining day was the fifth day and the smallest serum dilution capable of differentiating an infection resulting from dengue from another infection caused by yellow fever was of 1/5. According to the high specificity of the standardized technique, risk factor studies of dengue hemorrhagic fever could be made among individuals vaccinated against yellow fever, which is a present and important topic.
Palabras clave : NEUTRALIZATION TESTS [standards]; DENGUE [diagnosis]; YELLOW FEVER [diagnosis].