CD40LG and infection: Anexample of latex beads being used in a multiplexed LFA is the workof Lee et al., who developed a multiplex LFA that uses red and bluelatex beads for the detection of IgG and IgM produced as a responseto infections by dengue virus (DENV) and Chikungunya virus (CHIKV).The appearance of a purple color on the TL indicated the presenceof both IgG and IgM antibodies in the sample.