Bill Gates says Trump asked the difference between HIV and HPV

President Donald Trump waves as he walks to his motorcade vehicle as he arrives at Walter Reed National Military Medical Center in Bethesda, Md., Wednesday, May 16, 2018. (AP Photo/Carolyn Kaster)

INDIANAPOLIS (WTHR) - Bill Gates told staffers at his charitable Gates Foundation that President Donald Trump asked him to explain the difference between HIV and HPV.

He was recorded while addressing the staff at a recent meeting. That video aired Thursday night on MSNBC's "All In with Chris Hayes."

In the video, he said he specifically avoided Trump before the election, but went to see him in December after he got elected. He talked about two meetings in Trump Tower, in which he urged the president to become a leader in science and innovation, specifically suggesting using his power and influence to accelerate progress toward an HIV vaccine.

"Both times, he wanted to know the difference between HIV and HPV and so I was able to explain that those are things that are rarely confused with each other," Gates said in the video.

Gates also said Trump made "scary" observations about the appearance of Gates' 22-year-old daughter, Jen. She'd met Trump in Florida during an equestrian competition he sponsored.

After airing the video, Hayes said his team had reached out to the Gates Foundation for comment but they had not yet responded.

Get more on this story from NBC News.

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