President Donald Trump said "99%" of coronavirus cases in the US are "totally harmless."
Dr. Anthony Fauci is the nation's top infectious-disease expert.
Fauci said Trump's claim is "false."
"I'm trying to figure out where the president got that number," Fauci said in a Financial Times interview published Friday.
Business Insider reports that there is overwhelming evidence of COVID-19's effects contradicts Trump's statement.
Fauci stressed that the virus is unpredictable and affected people very differently.
