Lab supply shortages add to testing woes

First, some of the coronavirus tests didn’t work. Then there weren’t enough to go around. Now, just as the federal government tries to ramp up nationwide screening, laboratory workers are warning of a new roadblock: dire shortages of testing supplies.

The shortages are the latest stumble in a botched effort to track the spread of coronavirus that has left the U.S. weeks behind many other developed countries. Dwindling supplies include both chemical components and basic swabs needed to collect patient samples.

There are “acute, serious shortages across the board” for supplies needed to do the tests, said Eric Blank, of the Association of Public Health Laboratories, which represents state and local health labs.

Late Friday, Blank’s group and two other public health organizations recommended that testing be scaled back due to “real, immediate, widescale shortages.” The groups said only patients with COVID-19 symptoms who are elderly, have highrisk medical conditions or are medical staff should be tested.

“Testing for individuals who are not in these three groups is not recommended until sufficient testing supplies and capacity become more widely available,” said the joint statement, issued with the Association of State and Territorial Health Officials and the Council of State and Territorial Epidemiologists.

Testing is a critical part of tracking and containing infectious diseases like COVID-19. But the U.S. effort has been plagued by a series of missteps, including accuracy problems with tests the CDC sent to other labs and bureaucratic hurdles that slowed the entrance of large, private sector labs.

With the virus spreading, officials in the U.S. have shifted focus from tracking the virus to extraordinary measures to blunt its damage. On Thursday California’s governor told its 40 million residents to stay home indefinitely and venture outside only for essential jobs.

But public health experts stress that policymakers are “flying blind” in deciding how to manage the pandemic.

“The only way to get through it without testing is to keep the entire country quarantined for the next 18 months” said Dr. Ashish Jha, a Harvard University global health professor. “That obviously is untenable.”

Jha and his colleagues say the U.S. should be screening 100,000 to 150,000 people per day. The current rate is roughly 20,000 per day, he estimates, though it is accelerating as larger commercial companies ramp up testing.

The director of Missouri’s state lab said Friday that his facility is facing shortages of swabs, liquids to store patient samples and kits to develop the results. Many labs are having similar problems, said Bill Whitmar.

“Quite frankly, 95 percent to 98 percent of the talk between lab directors has been about the shortage of supplies,” Whitmar said.

At this point only 500 swabs are available, and the lab only has supplies to last through Tuesday, he said.