"Unfortunately this virus laid bare the severe shortcomings of the current administration," Biden said in front of American flags at an event in Delaware.
House Speaker Nancy Pelosi has canceled a big money Democratic fundraiser scheduled for Thursday night in New York out of concern over the rapidly spreading coronavirus.
Canadian Prime Minister Justin Trudeau is self-isolating at home while his wife, Sophie Gregoire, awaits the results of a test for COVID-19, a spokesperson said Thursday.
"We are talking about it as a patriotic duty," Ohio Secretary of State Frank LaRose said in an interview. "Part of the reason for this is that the demographic that tends to be our poll workers tends to be older."
President Trump said that markets will be "just fine" as U.S. stocks sold off in yet another dramatic session fueled by worries over the coronavirus outbreak and the administration's response to it.
GOP Reps. Matt Gaetz and Doug Collins entered self-quarantine after learning they had contact with a man with the coronavirus at the CPAC conference, and after they had contact with President Donald Trump.
The Capitol will be closed to the public for the rest of the month, and White House tours will stop indefinitely as officials try to curb the coronavirus pandemic.
The U.S. travel and tourism industry could lose at least $24 billion in foreign spending this year because of the rapidly spreading coronavirus, according to data produced by Tourism Economics and first seen by CNBC.
Biden and Sanders, because of their age and frequent travel, could be particularly vulnerable to coronavirus. The Centers for Disease Control and Prevention warn that older people are more at risk. Biden is 77 and Sanders is 78.
Senate Democrats on Wednesday unveiled more than a dozen "critical measures" intended to provide relief to local communities amid the deadly coronavirus outbreak.