Revelation Biosciences, Inc., a clinical-stage biopharmaceutical company, focuses on the development and commercialization of immune system therapeutics and diagnostics. The company engages in developing therapeutic product candidates, including REVTx-99b that is in a Phase Ib clinical trial for the prevention or treatment of chronic nasal congestion and allergic rhinitis; and REVTx-200, a nonclinical stage product for intranasal therapy. It is also involved in developing REVTx-300, a non-clinical stage product that is being developed as a potential therapy for the treatment of chronic organ disease, including chronic kidney disease and non-alcoholic steatohepatitis; and REVDx-501, a rapid test kit, which is a point of care in vitro diagnostic test that has the potential to detect respiratory viral infections, such as SARS-CoV-2, Influenza A, Influenza B, parainfluenza, or respiratory syncytial virus. The company was founded in 2020 and is based in San Diego, California.