Monoclonal antibodies are a triumph of modern medicine. They are also too expensive to be a standard therapy in all but the wealthiest countries. “Having 10% or 15% of your population on antibodies is not sustainable even in wealthy countries,” Rachel Liberatore told BioWorld. Liberatore is director of research and development at Renbio Inc., which is testing the intramuscular delivery of antibody-encoding DNA to prevent and treat infections, including SARS-CoV-2 and HIV.