Outgoing acting White House chief of staff Mick Mulvaney is under voluntary self-isolation in South Carolina, NBC News has confirmed. 

“He had contact with someone whose test results are pending, so out of an abundance of caution due to his proximity to the President, he’s teleworking pending those results," a White House official told NBC News. "He tested negative on Friday and had no symptoms. White House docs blessed his travel.”

The Associated Press reported that Mulvaney decided to isolate himself because his niece had been in contact with a Brazilian official who tested positive for coronavirus. Mulvaney had tested negative for the virus, the report said.

Earlier this month, President Donald Trump tapped on of his stanchest allies, Rep. Mark Meadows, R-N.C., to be his new chief of staff.

Al Roker returned to "TODAY" after a staffer he came in contact with tested positive for coronavirus. But he's working from home, bringing viewers the weather from his kitchen.

"There are no NBC News crews here. This is my iPad," Roker said Tuesday, joking he finally got to sleep in without his usual commute.

Roker said he's feeling fine and doesn't have any symptoms of coronavirus. He sat out Monday's broadcast and decided to work from home Tuesday out of an abundance of caution.

Watch his kitchen broadcast below:

Iran now has 16,169 reported cases of coronavirus after adding 1,178 new cases in the past 24 hours, the Iranian Heath Ministry said Tuesday.

So far, 988 people have died of COVID-19 in the country — 135 of them just in the past 24 hours.

The health ministry says 5,389 people have recovered.

Both AMC Theatres and Regal Cinemas announced Monday they will close their doors this week as the coronavirus continues to spread in the United States.

The movie theater chains were set to close Monday night after the last showing.

Read the full story here.

Researchers advising the British government have warned that social restrictions designed to combat the spread of the coronavirus may have to be imposed for 18 months or "indefinitely" until a vaccine is found.

A report published Monday by the the COVID-19 Response Team at Imperial College London persuaded the U.K. government to shift its much criticized strategy from trying to slow the number of infections to trying to suppress them altogther.

However, the response team warned that the measures — advising people to skip pubs and theaters, as well as self-isolating at home for 14 days if any family member displays symptoms — might have to remain in place for many months because the contagion might "rebound" once they are lifted.

"The social and economic effects of the measures which are needed to achieve this policy goal will be profound," it warned.

White House press secretary Stephanie Grisham was not at the White House Monday after she was exposed to Brazilian officials at Mar a Lago last weekend who later tested positive for the coronavirus, according to two people familiar with the matter. 

Attorney General William Barr sent a two-page memo to all U.S. attorneys Monday that outlined the Department of Justice’s priorities for law enforcement and the health and safety of people in the judicial system. 

Every U.S. attorney’s office has been ordered to prioritize the detection, investigation and prosecution of criminal conduct that’s related to the coronavirus pandemic. 

The memo referred to businesses selling fake cures online for the COVID-19 disease, phishing emails from entities posing as the World Health Organization or the CDC and malware infecting apps designed to track the spread of the virus.