Clin. Vaccine Immunol.
doi:10.1128/CVI.00157-08
Copyright (c) 2008, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved.
Development of a more efficient algorithm for identifying false-positive reactivity in a dengue IgM screening assay
Harry E. Prince*,
Cindy Yeh,
and
Mary Lapé-Nixon
Focus Diagnostics Inc., Cypress, CA
* To whom correspondence should be addressed. Email:
hprince{at}focusdx.com.
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Abstract |
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Of 2692 sera screened for dengue IgM using a mu-capture enzyme-linked immunosorbent assay (ELISA), 954 were equivocal (index 0.90-1.10) or positive (index >1.10), and retested using a background subtraction (BS) ELISA that identifies screen false-positives. No false-positives were found among 427 sera with screen-ELISA indices >6.00; thus, retesting this specimen subset by BS-ELISA is unnecessary.