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False negative? FDA warns of possible issue with locally used COVID test

by City News Service • January 8, 2021

[Image via LA County website]
LOS ANGELES – Curative, whose coronavirus tests are widely used across the country — including at Los Angeles County sites — is defending the validity of its tests, following a federal government alert about the possibility of false negative results.

The Food and Drug Administration issued the alert this week, warning of the potential for Curative tests to wrongly come back negative. It did not give any indication about the breadth of the problem, or how often such false results occur.

But the agency warned that the test must be administered in accordance with its authorized use — which limits it to use on people who are showing symptoms of COVID-19. Testing in Los Angeles County is open to people regardless of whether they are showing symptoms.

“When the test is not performed in accordance with its authorization or as described in the authorized labeling, there is a greater risk that the results of the test many not be accurate,” according to the FDA alert.

It also states that collection of specimens “must be directly observed and directed during the sample collection process by a trained health care worker at the specimen-collection site.”

It notes that a person who incorrectly receives a negative result will be delayed in receiving treatment, and efforts to trace others who may have been exposed to the person will also be delayed, potentially resulting in further spread of the virus.

Curative issued a statement this week defending its test.

“Curative’s test has been validated and is being offered during the pandemic under an Emergency Use Authorization, and is labeled with specific warnings, precautions and limitations that FDA reiterated in the safety communication,” according to a statement from the company.

“The test performance and labeling, however, have not changed, nor has the company observed any changes in test performance. We have been working with the agency to address their concerns and these limitations, and we will continue to work interactively with FDA through the Emergency Use Authorization.”

Company officials said they remain committed to following all federal regulations and to ensuring its tests “meet or exceed our customers’ expectations.”

County health officials have long warned against over-reliance on a negative test result, saying that anyone who believes they were exposed to the virus should quarantine themselves, even if they tested negative. The county’s website notes that a negative test only indicates the virus wasn’t detected at the time the sample was taken, adding that a negative results “can also happen if the test was taken too early or the test missed your infection.”

The county’s testing website also states that  “no test for COVID-19 is perfect” and could result in false negative or positive results.

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Filed Under: Health, Home, Los Angeles County

1 comment for "False negative? FDA warns of possible issue with locally used COVID test"

  1. Sammy boy says

    January 11, 2021 at 9:12 am

    … I don’t believe ramming a q-tip so far up my sinus until I nosebleed, could ever detect much of anything. Ever since my COVID-19 test, up there at the AV Fairgrounds, my nose runs, but only when I eat –

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