WASHINGTON (TIP): President Donald Trump on Sunday announced he’s extending his administration’s guidelines on social distancing amid the COVID-19 outbreak until April 30.

Dr. Deborah Birx, the coordinator of the White House coronavirus task force, said the choice to extend the guidelines was not made lightly.

“We know it’s a huge sacrifice for everyone,” she said, adding that more detailed guidance will be released Tuesday, March 31.

Earlier Sunday, Dr. Anthony Fauci told CNN”s “State of the Union” he anticipates the coronavirus could kill between 100,000 and 200,000 Americans while infecting “millions,” though he said the outbreak is difficult to model as it is “such a moving target.”

Trump said his administration was extending the guidelines with hopes of avoiding a catastrophic death toll. He said that if the U.S. “could hold that down to 100,000” or fewer deaths, his administration will have done a great job in handling the outbreak.

Much of the nation is currently shuttered to contain the spread of the disease, which first appeared in China late last year. As of Sunday morning, roughly 140,000 coronavirus cases have been confirmed in the U.S., the highest total of any nation, with more than 2,400 deaths, according to a Johns Hopkins University tracker.