WASHINGTON — For the first time, the U.S. came close to providing health care for all during the coronavirus pandemic — but for just one condition, COVID-19.

Now, things are reverting to the way they were as federal money for COVID care of the uninsured dries up, creating a potential barrier to timely access.

But the virus is not contained, even if it’s better controlled. And safety-net hospitals and clinics are seeing sharply higher costs for salaries and other basic operating expenses. They fear they won’t be prepared if there’s another surge and no backstop.

“We haven’t turned anybody away yet,” said Dr. Mark Loafman, chair of family and community medicine at Cook County Health in Chicago. “But I think it’s just a matter of time … People don’t get cancer treatment or blood pressure treatment every day in America because they can’t afford it.”

A $20 billion government COVID program covered testing, treatment and vaccine costs for uninsured people. But that’s been shut down. Special Medicaid COVID coverage for the uninsured in more than a dozen states also likely faces its last months.

At Parkland Health, the frontline hospital system for Dallas, Dr. Fred Cerise questions the logic of dialing back federal dollars at a time when health officials have rolled out a new “test-to-treat” strategy. People with COVID-19 can now get antiviral pills to take at home, hopefully avoiding hospitalization. Vice President Kamala Harris, who recently tested positive but is back working at the White House, is an example.

“Test-to-treat will be very difficult for uninsured individuals,” predicted Cerise, president and CEO of the system. “If it’s a change in strategy on the large scale, and it’s coming without funding, people are going to be reluctant to adopt that.”

Officials at the federal Department of Health and Human Services say the new antiviral drugs like Paxlovid have been paid for by taxpayers, and are supposed to be free of charge to patients, even uninsured ones.

But they acknowledge that some uninsured people can’t afford the medical consultation needed to get a prescription. “We hear from state and local partners that the lack of funding for the Uninsured Program is creating challenges for individuals to access medications,” said Dr. Meg Sullivan, chief medical officer for the HHS preparedness and response division.

The nation has not pinched pennies on the pandemic before.

“We’re well short of universal health coverage in the U.S., but for a time, we had universal coverage for COVID,” said Larry Levitt, a health policy expert with the nonpartisan Kaiser Family Foundation. “It was extraordinary.”

Recently an urgent White House request for $22.5 billion for COVID priorities failed to advance in Congress. Even a pared-back version is stuck. Part of the Biden administration’s request involves $1.5 billion to replenish the Uninsured Program, which paid for testing, treatment and vaccine-related bills for uninsured patients. The program has now stopped accepting claims due to lack of money.

That program, along with a less known Medicaid option for states, allowed thousands of uninsured people to get care without worrying about costs. Bipartisan support has given way as congressional Republicans raise questions about pandemic spending.