may be actually useful thing to do. but at the data we have with the clinical trials, enrolling people that have high risk of progression. i would say, though, the two drugs, the merck drug and the pfizer drug are different in their mechanism of action and the pfizer drug is something called protease inhibitor. it inhibits a step in the viral replication in which an enzyme, protease, cuts down the virus. when you make cookies, you make cookies and you try to cut them, so you have the final shape, this drugs are very similar to drugs we use for the treatment of hiv, so a lot of the research in advancing hiv research led to drugs for the treatment of covid. >> okay, so, everybody loves a pill. it solves a problem. it is easy, pop it, everything is good. just to be clear here, you're saying folks should still get vaccinated to prevent getting to this point, right? less likely you are infected even in the first place, just -- i want to make that clear