期刊
DIAGNOSTIC MICROBIOLOGY AND INFECTIOUS DISEASE
卷 57, 期 1, 页码 67-70出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.diagmicrobio.2006.11.003
关键词
influenza; rapid antigen detection; performance evaluation
To evaluate the Binax NOW Influenza A & B combination assay, we tested upper respiratory tract samples in parallel with the Binax NOW Flu A and Binax NOW Flu B assays, the Becton-Dickinson Directigen Flu A+B assay, and immunofluorescence, and the results were compared with viral culture. Of the 521 samples tested, influenza A was cultured from 113 and influenza B from 6. There were no significant differences in the performance of all rapid antigen tests, with sensitivities of 53% to 59% for detecting influenza A compared with culture and immunofluorescence (80%). The sensitivities for all rapid tests were significantly higher for nasopharyngeal samples than for throat swabs. The Binax NOW Influenza A & B assay performed as well as other rapid assays. Commercial antigen detection assays are useful tools for the rapid diagnosis of influenza; however, confirmatory testing is always recommended. The use of nasopharyngeal samples for all rapid detection methods should be strongly encouraged. (c) 2007 Elsevier Inc. All rights reserved.
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