{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,14]],"date-time":"2026-09-14T11:36:13Z","timestamp":1789385773805,"version":"build-2803163510"},"reference-count":60,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2008,1,18]],"date-time":"2008-01-18T00:00:00Z","timestamp":1200614400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Medical Virology"],"published-print":{"date-parts":[[2008,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Infection with West Nile virus (WNV) causes a febrile illness that can progress to meningitis or encephalitis, primarily in humans that are immunocompromised or elderly. For successful treatment of WNV infection, accurate and timely diagnosis is essential. Previous studies have suggested that the flavivirus non\u2010structural protein NS1, a highly conserved and secreted glycoprotein, is a candidate protein for rapid diagnosis. Herein, we developed a capture enzyme\u2010linked immunosorbent assay (ELISA) to detect WNV NS1 using two anti\u2010NS1 monoclonal antibodies (mAbs) that map to distinct sites on the protein. The capture ELISA efficiently detected as little as 0.5 ng\/ml of soluble NS1 and exhibited no cross\u2010reactivity for yellow fever, Dengue, and St. Louis encephalitis virus NS1. The capture ELISA reliably detected NS1 in plasma at day 3 after WNV infection, prior to the development of clinical signs of disease. As the time course of infection continued, the levels of detectable NS1 diminished, presumably because of interference by newly generated anti\u2010NS1 antibodies. Indeed, treatment of plasma with a solution that dissociated NS1 immune complexes extended the window of detection. Overall, the NS1\u2010based capture ELISA is a sensitive readout of infection and could be an important tool for diagnosis or screening small molecule inhibitors of WNV infection. J. Med. Virol. 80:547\u2013556, 2008. \u00a9 2008 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/jmv.21091","type":"journal-article","created":{"date-parts":[[2008,1,19]],"date-time":"2008-01-19T01:50:49Z","timestamp":1200707449000},"page":"547-556","source":"Crossref","is-referenced-by-count":36,"title":["Defining the levels of secreted non\u2010structural protein NS1 after West Nile virus infection in cell culture and mice"],"prefix":"10.1002","volume":"80","author":[{"given":"Kyung Min","family":"Chung","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael 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