SCARB2 and infection: Virus attachment with a specific receptor, mostly are heparan sulfate (HS) (28–30), P-selectin glycoprotein ligand-1 (PSGL-1 or CD162) (31–33), and Human scavenger receptor class B member 2 (SCARB2) (34–37), the initial key step of infection, is an interaction target for developing antiviral therapeutics through antibody-receptor-virus interactions.