there's no lab or clinical data yet, and that's really what we need to elevate it to variant of concern. but whether it is lambda or another variant that evolves, you know, as long as we do not fully vaccinate the rest of this country and the rest of the world we do have to have serious concerns about variants evolving. >> let's be clear right now. the most appreciating issue is the delta variant, and to dr. fauci's point things are going to get worse, i mean in your mind what could that look like, especially in hard-hit places like florida? i mean how much worse could this get in the next few weeks and months? >> you know, i think it could get exponentially worse. we saw what the delta variant did in india and in the uk in terms of essentially ripping through the population of people who are unvaccinated. i think we haven't even seen the tip of the iceberg yet. when we enter the fall people will head indoors more frequently. there will be colder, dryer weather, which the virus likes and spreads more easily in.