impact of that severe, illness. that what we know from sars covid, to the virus that causes covid-19, the receptor, that it uses to enter human cells, they're all over your body, there in your heart, they're in your blood vessels, your kidneys your lungs, this is why we have been calling it a multi system disease, and that's why there might be a correlation for the kind of affects people are seeing after surviving the disease. but also what you're noticing in terms of symptoms who have long covid. who make it over the initial hurdle. but then they have prolonged ongoing medical issues. >> joe rogan, the podcaster who has downplayed covid vaccines, says that he has tested positive for covid, and he's taking a litany of things of treatments, including ivermectin. which is the horse the warmer, what do we know about this? >> so, i'm going to start by saying the fda has said there's no rules of --