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Bill Gates has claimed that Donald Trump asked him twice what the difference was between HIV and HPV.

The Microsoft co-founder made the remarks at a Bill and Melinda Gates Foundation meeting, according to MSNBC.

Mr Gates also added that he found the amount the president knew about his daughter's appearance "scary."

Mr Trump and his team have not commented on the allegations.

Philanthropist Mr Gates told members of his staff in Florida that he has met Mr Trump twice since he became president.

He told the crowd:"Both times he wanted to know if there was a difference between HIV and HPV. So I was able to explain that those are rarely confused with each other."

HPV affects the skin and moist membranes and can cause problems such as abnormal cell changes in the cervix while HIV attacks the immune system. The infection can lead to AIDS however with treatment, most people don't go on to develop it, according to the NHS.

Mr Gates said: "In both of those two meetings, he asked me if vaccines weren't a bad thing because he was considering to commission to look into ill-effects of vaccines and somebody ,Robert Kennedy Junior, was advising him that vaccines were causing bad things."

"And I said no that would be a bad thing, don't do that."

Footage thought to be from a recent meeting with staff from the Microsoft co-founder's foundation was leaked online by MSNBC's All in with Chris Hayes.

In one video Mr Gates explained that Mr Trump had previously known his daughter, now 22, after they met at one of his horse shows.

Mr Gates said: "He knew my daughter Jennifer, because Trump has this horse show thing down in Florida and in fact he went up and talked to Jen and was being super nice."

"And then like 20 minutes later, he flew into a helicopter in the same place so clearly, he had been driven away,but he wanted to make a grand entrance in a helicopter."

"Anyway, so when I first talked to him, it was actually kind of scary how much he knew about my daughter's appearance. Melinda didn't like that too well."