The viral proteases papain-like protease (PLpro) and chymotrypsin-like protease (3CLpro) (Thiel et al., 2003), responsible for the proteolytic processing of the viral proteins, have been targeted using a combination of Lopinavir and Ritonavir initially used for treating HIV, but have shown poor results against COVID-19 (Dong et al., 2020) Molnupiravir (Kabinger et al., 2021) and Remdesivir (de Wit et al., 2020), (Wang et al., 2020) are synthetic nucleoside analogues that inhibit viral RNA polymerases are also used against COVID-19. Here, CTRL is linked to COVID-19.