fauci, this goes back to an earlier caller. guest: this is an issue we have to keep working at, to get a good balance between what is charged for life-saving medications such as hiv-aids medication and the investment that companies need to put in. from where i come from, we aren't a company, we just do the research that tries to get the cures and the intervention of the caller has a good point. there are some medications, the prices of which are really, extraordinarily -- you have to scratch your head and say, how could he possibly have a medication that cost that amount money? to comment on vaccines, relatively speaking, bang for the buck you get from vaccines, they are among the whole spectrum of interventions, vaccines are relatively inexpensive for the effect you get. some of the drugs for certain procedures are rather expensive, and that's unfortunate, and you try to get the right balance between the investment that companies make and what they are charging. homeland security secretary was asked to comment about the threat

.>>> bruce fauci was another healthcare. the procedure he had this morning and the team's reaction coming up. >>> new questions are being raised about possible conflict of interest between the bronco trump white house job in her retail line. china approved new trademarks for the of bronco trump ran on april 6. that is the same day she and her husband sat down for dinner with the president of china at mar-a-lago. the presidents daughter did not personally sign off on the new trademark application. for more, we're joined by david levine. thank you for joining us. any red flags here? >> one or two. the problem is that her status as an employee at the white house is what potentially could get her in trouble. the company is separate. the company's name, you see the difference between that and her person and everybody else does the problem is that she has ownership, financial interest in that company and if she participates in advising the president or participates in the creation of policy that would affect the fortunes of the co

anthony fauci is the dr. infectious diseases and the author of the book americans at risk.re not prepared for disasters and what we can do. dr. sanjay. >> outbreak is usually when you see some sort of eruption of an infection you wouldn't otherwise expect to see. epidemic is when something starts to spread rapidly among the population. pandemic is when it's spreading around the world. endemic is when it becomes intrenched in a particular place. so certain malaria would be an example. something that started in these first stages but now endemic within certain parts of africa. >> in terms of risk, you say you can't prevent outbreaks, you can't prevent the emergence of a new infectious agent but you can prevent how it spreads. >> exactly. and that's the whole point. microbes emerge and reemerge. the critical issue is to prevent an outbreak from becometic an epidemic and then a pandemic. with vaccine development, you can blunt that spread. so people think prevent an outbreak. you're just not going to do that. there will be emergence of -- for example when we had ebola in africa

anthony though fauci. what have you learned in working on this?uest: this is an extraordinary demonstration of the kinds of challenges you have of emerging and r