Yeong Hoon Kim, Tae-Yun Kim, Ji-Seon Park, Jin Suk Park, Jihoo Lee, Joungdae Moon, Chom-Kyu Chong, Ivan Neves Junior, Fernando Raphael Ferry, Hye-Jin Ahn, Lokraj Bhatt, Ho-Woo Nam
Korean J Parasitol 2019;57(3):283-290. Published online June 30, 2019
A rapid diagnostic test (RDT) kit was developed to detect non-structural protein 1 (NS1) of yellow fever virus (YFV) using monoclonal antibody. NS1 protein was purified from the cultured YFV and used to immunize mice. Monoclonal antibody to NS1 was selected and conjugated with colloidal gold to produce the YFV NS1 RDT kit. The YFV RDTs were evaluated for sensitivity and specificity using positive and negative samples of monkeys from Brazil and negative human blood samples from Korea. Among monoclonal antibodies, clones 3A11 and 3B7 proved most sensitive, and used for YFV RDT kit. Diagnostic accuracy of YFV RDT was fairly high; Sensitivity was 0.0% and specificity was 100% against Dengue viruses type 2 and 3, Zika, Chikungunya and Mayaro viruses. This YFV RDT kit could be employed as a test of choice for point-of-care diagnosis and large scale surveys of YFV infection under clinical or field conditions in endemic areas and on the globe.
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