First there is a small safety trial of several months, followed by an efficacy trial of I think six months. We could possibly skip the efficacy trial at the exp

First there is a small safety trial of several months, followed by an efficacy trial of I think six months. We could possibly skip the efficacy trial at the expense of potentially loading up people with multiple not-very-effective vaccines. And getting through safety trials doesn't mean there are no side effects, so we'd have to deal with those compounded as well.