Fig. 5.

A) Specificity test with pandemic influenza A virus (pH1N1) (7 × 10⁴ PFU/mL) (_▀), N protein of SARS-CoV-2, 2 μg/mL (_▀), Legionella pneumophila 10⁴ CFU/mL (_▀), Botulinum toxin C 10⁻⁸ M (_▀),S protein of SARS-CoV-2 1 μg/mL (_▀); B) Six negative (_{▀▀▀▀▀▀}) and six positive (_{▀▀▀▀▀▀}) clinical samples analyzed using 96-well wax-printed paper platform and confirmed by RT-PCR. The mean value (n = 3) with the corresponding standard deviation and the image of paper plate were reported for each measurement; C) Genomic comparison of SARS-CoV2 variants analyzed in this study vs reference strain isolated in Wuhan, China (Genbank acc. n. NC_045512.2).