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Symptoms. the key, as i understand it from talking to doctors today is that you have to get your hands on this pill and take it very early on in your illness. meaning if you wait any time more than five days, there's really no evidence it's going to help you at all. is that right? >> that's right. so what happens is the virus attaches to the lining of your nose. multiplies thousands of times. at that point, virus replication is an important part of the disease profess. then immune response kicks in. that's when you develop symptoms. at that point, virus reproduction is not an important part of...

It's an impressive medication, an impressive drug in terms of its ability to reduce severe illness by 90%. it would be given to people with moderate and mild infection to prevent them from further deterioration. so it's important to point out this is not for preexposure to the medicine. so it's not like a medicine you can take before you visit somebody or after you've been exposed. only for those with mild and moderate symptoms. and it's basically right now being excluded from people with severe illness because the thinking is it may not have a big impact. the other consideration, it has to be...

Omicron that seems to be where it is trending right now. other encouraging news today, pfizer released more data on the antiviral after the fact pill, finding that it reduces hospitalizations and serious illness among people who take it, almost 90%. how important is this? >> it is very important. i think the way that viruses work, this one being a particular example, initially the virus attaches, enters your nose, reproduces itself and reproduces itself hundreds of times, thousands of times. then your immune response kicks in. as your immune response kicks in, that's when you develop symptoms ...

Is it a game changer? >> yeah, actually the drug was first developed at emory university in atlanta and it was developed as an anti influenza drug and was to inhibit virus replication and subsequently shown it does this for the sars two coronavirus. it's a very interesting mechanism but actually introduces mutations while the virus is trying to replicate and then that eventually stops it cold and the great thing about it is it's an oral pill. it's a lot of pills. i think it's something like four pills twice a day so you wind uptaking 40 pills or so but it works in terms of reducing the hospita...

And yet, we really don't do anything to combat it. um, i have been calling this death by anti-science in writing and speaking about it now for a few years. and it's just gotten so out of control, and it's just completely heartbreaking. >> yeah. you know, the -- there's -- with that grim news, there's very promising news from merck to tell you -- everyone about. the first antiviral pill designed for covid-19. how does that work? is it a game-changer? >> yeah, actually, the -- the drug was actually first developed at emery university in atlanta. and it was developed as an anti-influenza drug and...