{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T23:52:55Z","timestamp":1791244375660,"version":"4.1.0"},"reference-count":33,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2009,10,29]],"date-time":"2009-10-29T00:00:00Z","timestamp":1256774400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Vector-Borne and Zoonotic Diseases"],"published-print":{"date-parts":[[2010,3]]},"abstract":"<jats:p>To establish a new method for the diagnosis of dengue secondary infection, 187 serum samples from the patients with dengue secondary infection, 40 serum samples from the patients with dengue primary infection, and 44 serum samples from the healthy volunteers were tested using the dengue IgG indirect enzyme-linked immunosorbent assay (DEN IgG ELISA). The results of the test were compared with those from the dengue hemagglutination inhibition (DEN HI) test, which has been recommended as the gold standard by the World Health Organization (WHO, 1997). Japanese encephalitis IgG indirect ELISA (JE IgG ELISA) was also performed to measure anti-flavivirus IgG, which cross-reacts with the Japanese encephalitis virus, to test the possibility of an alternative to DEN IgG ELISA. The results of DEN IgG and JE IgG ELISAs were highly correlated with those of the DEN HI test. In the DEN IgG ELISA, a titer of 1:29,000 was the cut-off value for the diagnosis of dengue secondary infection (91.5% accuracy [95% confidence interval, CI], 90.9% sensitivity [95%CI], and 92.9% specificity [95%CI]). A titer of 1:52,000 was the cut-off value for dengue secondary infection using JE IgG ELISA (95.6% accuracy [95%CI], 98.9% sensitivity [95%CI], and 88.1% specificity [95%CI]). In conclusion, this study confirmed that the results of both DEN IgG and JE IgG ELISAs were highly correlated with the results of DEN HI test. Thus, these ELISAs are simple, rapid, sensitive, and quantitative tests that can be used in the determination of dengue secondary infection.<\/jats:p>","DOI":"10.1089\/vbz.2008.0153","type":"journal-article","created":{"date-parts":[[2009,10,29]],"date-time":"2009-10-29T16:04:01Z","timestamp":1256832241000},"page":"143-150","source":"Crossref","is-referenced-by-count":43,"title":["Evaluation of a Dengue IgG Indirect Enzyme-Linked Immunosorbent Assay and a Japanese Encephalitis IgG Indirect Enzyme-Linked Immunosorbent Assay for Diagnosis of Secondary Dengue Virus Infection"],"prefix":"10.1177","volume":"10","author":[{"given":"Shingo","family":"Inoue","sequence":"first","affiliation":[{"name":"Nagasaki University","place":["Japan"]},{"name":"21 Century COE Program","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria T.G.","family":"Alonzo","sequence":"additional","affiliation":[{"name":"Osaka University","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yae","family":"Kurosawa","sequence":"additional","affiliation":[{"name":"Pentax Co. 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