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J Clin Microbiol. 1981 November; 14(5): 510-515

Detection of respiratory syncytial virus in nasopharyngeal secretions by inhibition of enzyme-linked immunosorbent assay.

ABSTRACT

An enzyme-linked immunosorbent assay developed for the demonstration of respiratory syncytial (RS) virus immunoglobulin G antibodies was used for the detection of RS virus in specimens of nasopharyngeal secretions (NPS) obtained from children with acute respiratory disease. Samples of NPS were incubated with a fixed amount of standard serum (human serum antibodies to RS virus) before being added to the enzyme-linked immunosorbent assay test plate. A decrease in the optical density value determined for this standard serum was seen with majority of NPS specimens from which RS virus had been isolated in tissue culture. The reliability and the specificity of this inhibiton test were supported by experiments with purified RS virus and by tests with NPS specimens containing other respiratory viruses.