CDCA7L and coinfection: GL25E is significantly more effective than GRFT in inhibiting the mono- and co-infection of IAV and SARS-CoV-2 because GL25E can target the glycans mainly in HA1 of IAV, S1 subunit of SARS-CoV-2, and HR1 domain in S2 subunit of SARS-CoV-2.