(WASHINGTON) — First lady Jill Biden has recovered from a “rebound” case of COVID-19 and will return to Washington nearly a week after again testing positive for the virus, her office said.

Biden, who has been isolating in Rehoboth Beach, Delaware, has now tested negative, her spokeswoman Elizabeth Alexander said in a statement. She plans to travel back to the capital on Tuesday.

The first lady — who first tested positive on Aug. 15 — then came out of her first isolation period from that infection in South Carolina on Aug. 21.

She subsequently tested positive for a rebound case last week after being treated with the antiviral Paxlovid.

President Biden tested separately negative for COVID-19 last Wednesday, according to the White House.

“The First Lady has experienced no reemergence of symptoms, and will remain in Delaware where she has reinitiated isolation procedures,” a spokeswoman said in a statement on Wednesday. “The White House Medical Unit has conducted contact tracing and close contacts have been notified.”

ABC News’ Molly Nagle, Arielle Mitropoulos and Sarah Kolinovsky contributed to this report.

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(WASHINGTON) — With COVID-19 funding drying up and no fresh cash infusion from Congress, the Biden administration says it will suspend its offer of free at-home rapid tests through COVID.gov.

The program will be put on pause later this week.

“Ordering through this program will be suspended on Friday, September 2, because Congress hasn’t provided additional funding to replenish the nation’s stockpile of tests,” a banner alert on the federal website said. The U.S. Postal Service’s free test page also noted the impending halt to the program.

A senior administration official told ABC that the move to pause the program is “to preserve our limited remaining supply” — particularly, to have a reserve in case a potential new wave of the virus sweeps the country in the coming months — “so that we can ensure we have a limited supply of tests available in the fall, when we might face a new rise in infections and more acute need.”

“The administration has been clear about our urgent COVID-19 response funding needs. We have warned that congressional inaction would force unacceptable trade-offs and harm our overall COVID-19 preparedness and response — and that the consequences would likely worsen over time,” the senior administration official said.

“We were also clear that failing to provide resources to be prepared would mean that if a surge were to come later, the cost to the American taxpayer would be even higher. Unfortunately, because of the limited funding we have to work with, we have had to make impossible choices about which tools and programs to invest in — and which ones we must downsize, pause or end altogether,” the official said.

Of the 1 billion free tests President Joe Biden pledged to secure at the beginning of this year, so far more than 600 million tests have been distributed through COVID.gov/tests, the senior administration official said, offering “every household” the “opportunity” to get a total of 16 tests in the three rounds of orders that the government opened up to the public.

The senior official added that the administration “will continue to work within its limited existing resources to secure as many additional tests as we can.”

“Congress hasn’t provided the COVID funding we need to replenish the nation’s stockpiles of tests, as simple as that,” White House press secretary Karine Jean-Pierre said Monday. “This is an action we’ve been forced to take that will help preserve our limited remaining supply.”

Orders through the program will cease on Friday.

Meanwhile, tests will still be distributed at 15,000 federally supported, community-based sites such as local pharmacies and libraries. Americans with eligible insurance can also still be reimbursed for at-home tests through their private health insurance, Medicare and Medicaid, the administration official said.

“In addition, the administration continues to ensure equitable access to tests through a number of programs, including free tests distributed directly to long-term care facilities, schools, child care and early learning centers, community health centers and food banks,” the senior official said.

“If Congress provides funding, we will expeditiously resume distribution of free tests through [COVID.gov/tests],” the official said. “Until then, we believe reserving the remaining tests for distribution later this year is the best course.”

Over the course of the spring, lawmakers failed to secure an additional $10 billion in funding for the program.

Then-press secretary Jen Psaki said in April, “The program that reimbursed doctors, pharmacists and other providers for vaccinating the uninsured had to end today due to a lack of funds. America’s supply of monoclonal antibodies that are effective at keeping people out of the hospital will run out as soon as late May. Our test manufacturing capacity will begin ramping down at the end of June,” adding that the failed Senate vote to secure additional funding at the time was “a step backward for our ability to respond to this virus.”

Democrats have vowed to continue the fight for additional funding this fall. The chairman of the Senate Appropriations Committee, Pat Leahy of Vermont, introduced a $21 billion emergency funding bill in late July and has vowed — along with panel co-authors Patty Murray, D-Wash., and Chris Coons, D-Del. — to get it passed this year.

ABC News’ Justin Gomez and Trish Turner contributed to this report.

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(LOS ANGELES) — After drone sightings and even reports of a man flying in a jetpack around Los Angeles International Airport, the federal government is rolling out new tech that could better detect objects entering restricted airspace.

The project, called the Unmanned Aircraft Systems Test Bed Program, is the second of its kind nationwide and will begin testing technology designed to detect, track and identify drones entering the airspace of LAX.

“If a drone was to enter the space as you see with the aircraft taking off and landing, and a pilot having to make a quick decision and divert from that flight path that he or she is on — that could be a huge issue for both the safety of the passengers, the safety of the folks on the ground, it just creates all types of challenges,” Keith Jefferies, the federal security director for the Transportation Security Administration at LAX, told ABC-owned station KABC.

Since 2021, TSA has reported 90 visual sightings of drones and 5,200 technical detections within three miles of the perimeter at LAX. This year alone there have been approximately 38 drones visually detected at the airport – including a drone that was reported within 700 feet of an aircraft just before Super Bowl LVI.

Moreover, several pilots landing at LAX have reported sightings of a man flying at high altitudes around aircraft at the airport. While law enforcement later said the sightings could have been a life-sized balloon, the agency believes the new tech would be able to detect such objects.

The agency noted that the data collected at LAX will help expand the program to other airports as well as raise awareness of the risks of encroaching on restricted airspace.

“One of the main objectives of the TSA UAS Test Bed Program is to continuously assess relevant technologies and keep pace with the ever-evolving capabilities within the UAS community,” TSA’s UAS Capability Manager Jim Bamberger said. “Working together with our federal, state and local partners and the intelligence community, we are leveraging our collective technical capabilities to prevent disruptions within the transportation sector.”

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