Invivyd, Inc. is a biopharmaceutical company. It is focused on the discovery, development, and commercialization of antibody-based solutions for infectious diseases. It delivers antibody-based therapies that protect vulnerable people from the devastating consequences of circulating viral threats, such as SARS-CoV-2 (COVID-19). Its technology works at the intersection of evolutionary virology, predictive modeling, and antibody engineering, and is designed to identify antibodies with a barrier to viral escape. It has a robust pipeline of antibody candidates for the prevention and treatment of COVID-19, including VYD222, a novel antibody. VYD222 is a monoclonal antibody candidate that has demonstrated in vitro neutralizing activity against dominant variants of concern, including XBB.1.5. VYD222 was engineered from adintrevimab (ADG20), which provided neutralizing protection against SARS-CoV-2 for all variants of concern until the emergence of the Omicron BA.2 strain and its sublineages.