Fig. 1

a Schematic of DPP test pathways. a. 50 uL of sample and buffer are added to the sample site on the cassette and migrate to the test line, where antigen is captured. After 5 min, running buffer is then added to the conjugate pad, and solubilized gold nanoparticles then conjugate to antibodies, which accumulate at the test line. Additional buffer washes the line for contrast. Image provided by Chembio Diagnostics, and included with written permission. b. The DPP test cassettes, with each antigen result indicated by a numbered line Image provided by Chembio Diagnostics, and included with written permission. The use of the logo was authorized by written permission from ChemBio Diagnostics. c. The DPP Micro Reader (middle) is positioned over the cassette holders (left, right) to read the lines of each test cassette. Text scans across the small screen on the Micro Reader to display the results of each test line. The Micro Reader is battery-powered. The Micro Reader can also be connected to a laptop, making it easier to read multiple results. Image provided by Chembio Diagnostics, and included with written permission. The use of the logo was authorized by written permission from ChemBio Diagnostics