Abstract: The present invention relates to compounds, compositions, and methods, for treating viral infections. In particular, entry inhibitor compounds are disclosed for treatment of coronavirus infections, including SARS-COV-1 and SARS-COV-2 infections. The compounds bind to the interface of a SARS-COV-2 spike protein receptor binding domain (RBD) and a host cell ACE-2 receptor. The entry inhibitor compounds show antiviral activity, favorable kinetics, and temporally act at the entry of SARS-COV-2 infection. In embodiments, the compounds are used as medicaments for the inhibition of viral replication including SARS-COV-1 and/or SARS-COV-2 replication, for the treatment or prophylaxis of viral infections including SARS-COV-1 and SARS-COV-2 infections, and/or for the treatment or prophylaxis of an illness due to SARS-COV-1 and SARS-COV-2 infections.

Abstract: Disclosed are recombinant proteins, compositions, vectors, kits, data analyses, and methods for inducing an immune response against, or detecting exposure to, SARS-CoV-2. In particular, the compositions, vectors, kits, data analyses and methods may be utilized to immunize subjects against disease associated with SARS-CoV-2 infection or to protect subjects from SARS-CoV-2 infection. In some embodiments, the recombinant proteins are useful in the production of antibodies against SARS-CoV-2, and for the detection of exposure to SARS-CoV-2.