Figure 3.
Diagnostic applications of CRISPR-Cas13 based SHERLOCK technique for COVID-19. The protocol includes three steps: Step (I): isothermal amplification of the extracted nucleic acid sample using a commercially available recombinase polymerase amplification (RPA) kit (25 min incubation); Step (II): detection of pre-amplified viral RNA sequence using Cas13 (30 min incubation); Step (III): visual read out of the detection result by eye using a commercially-available paper dipstick (2 min incubation).