Fig. 3.
Representative images of universal array detection of Dengue virus serotypes I–IV following hybridization of LDR products from a PCR/LDR assay. LDR primers for each serotype bear zip-code complements to distinct addresses. For correct identification only the addresses specific to a given serotype should provide a positive signal. In this assay, a minimum of two signals are required to identify a given serotype. (see ref. (22) for details)