Fig. 9: LFA of I223R/H275Y influenza viruses in human nasal fluid samples using A4.

Optical images of A4-based lateral flow systems after detection of influenza-positive nasopharyngeal swab samples in the absence or presence of I223R/H275Y influenza viruses (A/Puerto Rico/8/1934 (H1N1), A/Brisbane/10/2007 (H3N2), A/swine/Korea/GC0503/2005 (H1N1), and A/canine/Korea/MV1/2012 (H3N2)).