Hijacking the virus' ability to replicate, thereby stopping it in its tracks. phase ii, you go on larger groups, safety, tolerability, and then phase iii, you're looking for outcomes, in this case, the severity of disease which lands people in the hospital and can kill them. the cost is significant, it's $700 for a course of treatment, which is about a five-day course of these pills. as i mentioned, the vaccine is free. the monoclonal antibody infusions are $2,000 and they require you being in a hospital or clinical setting to get an infusion. so certainly, something that you can take at home ...