we have to give this virus its due respect. >> pelley: if you don't know the name david ho, your memoryt. dr. ho led the team in the 1990s that created the cocktail of drugs that made h.i.v./aids survivable, even though there's still no vaccine. >> dr. ho: much of the world was going to be shut down. >> pelley: his lab at columbia university was still focused on h.i.v./aids, until covid-19. >> dr. ho: you could say it's now worse than ever, with about 100,000 new cases per day worldwide. so, we-- we don't have it under control. >> pelley: ho's team moved into dorms vacated by students who are studying at home, so they could work 24/7 on monoclonal antibodies-- a complex name for a simple idea. a covid patient's immune system creates antibodies to attack the virus. those antibodies can be harvested, cloned and reproduced in the billions. >> dr. ho: for example, we could clone out 250-some antibodies from five infected persons, and then just systematically characterize them in the laboratory to see which ones have the best properties, in terms of neutralizing or inactivating the virus. >>

david ho at the research center, currently working on antibody treatments for covid-19. thank you for being here tonight. it is an honor to have you here. >> my pleasure, thank you, rachel. >> as we continue to absorb the news a bout the president's hospitalization and trying to understand his implications. we'll talk about congressman jim clyburn to talk about the sobering implications of the potential succession issues, stay with us. potential succession issues, stay with us woo! you are busy... working, parenting, problem solving. at new chapter vitamins we've been busy too... innovating, sourcing organic ingredients, testing them and fermenting. fermenting? yeah like kombucha or yogurt. and we formulate everything so your body can really truly absorb the natural goodness. that's what we do, so you can do you. new chapter wellness, well done. still a father. but now a friend. still an electric car. just more electrifying. still a night out. but everything fits in. still hard work. just a little easier. still a legend. just more legendary. chevrolet. making life's jour

david ho. he is the scientific director and ceo of the aaron diamond aids research center. he is a legend in the fight against hiv, the virus that causes aids, especially insight and research breakthroughs in developing treatments that made that a survivable disease. dr. ho is now working on a team -- antibody cocktails along the lines of this experimental drug the president was given today. dr. ho, it's an honor to have you here, sir. thank you for making time tonight. >> thank you, rachel. good to be back with you. >> for those of us who vaguely remember tenth grade biology but otherwise don't have an expert grasp of these things at all, can you explain to us in layman's terms what is this type of treatment that the president has been administered? we know that it is on compassionate use. it's not approved as a treatment for coronavirus. we've read that it shows some promise as a potential therapeutic. but what kind of drug is this, and how unusual is it for somebody to be getting it very early on after being diagnosed? >> well, the president is getting an antibody cockta

david ismail fears his savings won't last. >> at the end of it day we're not even sure we can make the rent or go buy groceries. that is very, very real challenge. zblnchts horld's airlines and aircraft manufacturers have new research suggesting the risk of infection inside a fully loaded plane is very low. air inside a plane flows from top to bottom. pulled down by gravity researchers say the air washes out airborne particles including viruses, then runs through hepa filters similar to those used in operating rooms removing 99.9% of particles. researchers say that airflow creates the equivalent of 7 feet of separation even between passengers sitting shoulder to shoulder. >> the risk of onboard transmission appears to be low. >> reporter: the challenge convincing passengers when just 30% believe it's safe to fly. the airlines say without more government help they're considering even more and deeper cuts likely to some airline routes. with government help they hope to bring those furloughed employees back. brian? >> our thanks to tom costello for that report. another break for us. >>> and coming up, we've had presidents who try to sell policies to the americ

the follow-on to camp david, under the umbrella of the reagan september of 1982 initiative. that will reduce terror. it will not eliminate it. >> you mentioned ho khomeini. some republicans charged the minister should of being almost helpless against terrorism. why isn't your administration done something to act against arab states that fomented this kind of terrorism? vice pres. bush: what we have done is to support arab states that want to stand up against international terror, quite different. we believe supporting without jeopardizing the security of israel in any way because they are our one strategic ally in the area, the one democracy in the area, and our relationship with them has never been better. but we do believe in reaching cc, to what they call the g those gulf cooperative arab states, those moderate arab states in that world, and helping them with defensive weapons to guard against international terror or radical islam perpetrated by khomeini, and because we did that in the saudis chopped out a couple of those intruding airplanes, we have helped keep the peace in the persian gulf. >> congresswoman ferraro, you and mr. mondale hav