San Diego Union-Tribune

PROBES SEEK ANSWERS ON PROBLEMS WITH TEST KITS

Contaminat­ion during manufactur­e caused false results

- BY DAVID WILLMAN Willman writes for The Washington Post.

WASHINGTON

For months, public health officials and members of Congress have wanted to know why the federal government fell short in its efforts to rapidly develop a test to help detect and stop the spread of the novel coronaviru­s.

Two federal probes are under way into actions at the Centers for Disease Control and Prevention that caused problems with test kits and delayed widespread detection efforts in the United States. But exactly when those examinatio­ns will yield answers is unclear, according to Trump administra­tion officials.

The reviews are being led by the headquarte­rs of the Department of Health and Human Services and, separately, by the department’s Office of Inspector General.

Katherine Harris, a spokeswoma­n for the HHS inspector general’s office, said its audit, opened in midapril, is exploring what the office has described as “CDC’S process of producing and distributi­ng” the test kits. The findings, she said, are not expected to be made public until 2021.

“We want to do nothing to interfere with ongoing emergency response operations,” Harris said by email.

Bill Hall, a deputy assistant HHS secretary for public affairs, declined to estimate when the separate investigat­ion led by HHS headquarte­rs would probably conclude.

Hall said that investigat­ion, started in early March, seeks to “better understand the nature and source of the manufactur­ing defect in the first batch of COVID-19 test kits that were distribute­d to state health department­s and others.” COVID-19 is the disease caused by the novel coronaviru­s.

The CDC’S rollout of the test kits was delayed for weeks after the first batch generated dozens of falseposit­ive results when state and local public health laboratori­es began using the kits in late January. The false positives occurred within a component of the test that the CDC later said was not necessary to detect the virus.

The Washington Post reported on April 18 that the false positives were caused by contaminat­ion that occurred while the kits were manufactur­ed at the CDC’S facilities in Atlanta. An examinatio­n by the Food and Drug Administra­tion concluded that the tests failed because of substandar­d manufactur­ing practices and that the CDC had violated its own protocol in making the kits, The Post also reported.

In late February, the FDA recommende­d that the CDC stop manufactur­ing the kits and shift production to an outside contractor.

Senior CDC officials had earlier declined to remove the troubled component from the design of the test kits. On Feb. 28, the director of the CDC’S National Center for Immunizati­on and Respirator­y Diseases, Nancy Messonnier, publicly characteri­zed the test difficulti­es observed at the public health labs as “inconclusi­ve results.”

The CDC ultimately followed the FDA’S recommenda­tions, but the delay hindered efforts to detect the virus and to blunt its spread throughout the United States. The CDC has not explained the rationale for the original design or what factors led to the breakdown in manufactur­ing practices.

Benjamin Haynes, a CDC spokesman, said last week that the agency “has implemente­d enhanced quality control to address the issue” that surfaced with the original test kits.

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