Harnessing the Human Immune System: Why Antibody Treatments Might Just Work Against COVID-19

In the race to develop a safe, effective treatment for COVID-19, biotech companies like Regeneron and Vir Biotechnology, led by Cornell alumni, have turned to antibodies — which are naturally created by the human immune system — as a form of therapeutic treatment.
But what are antibodies, and how can they be repurposed into drugs to help people recover from COVID-19?