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Misinformation about COVID Tests

By / / bioweapons, COVID-19, Delta variant, false negative, false positive, flu season, PCR, PCR cycles, rapid antigen tests, SARS-CoV-2

As COVID is once again surging, so is misinformation about COVID tests.

To my surprise, a parent recently told me that she didn’t want her child tested for COVID with a PCR test because she had heard that the CDC had recalled all of the tests.

Of course, that wasn’t true.

“On April 23, 2021, Innova Medical Group recalled their Innova Medical Group SARS-CoV-2 Antigen Rapid Qualitative Test.”

Stop Using Innova Medical Group SARS-CoV-2 Antigen Rapid Qualitative Test: FDA Safety Communication

Only rapid antigen tests from Innova, which we didn’t even use, had been recalled. The recall did not affect hundreds of other rapid antigen and PCR COVID tests.

Misinformation about COVID Tests

Tragically, misinformation about the recall of COVID tests isn’t all that many of us are now hearing about.

There are a lot of other wild statements from folks trying to discredit COVID testing.

PCR test cycle thresholds have not changed, a charge that was also made after Biden was elected as an explanation for a drop in cases (they said 'we' lowered the test cycle threshold then...).
PCR test cycle thresholds have not changed, a charge that was also made after Biden was elected as an explanation for a drop in cases (they said ‘we’ lowered the test cycle threshold then…).

And while some of the statements are obviously propaganda, as most folks know that COVID vaccines are not a bioweapon and that the SARS-CoV-2 virus is not the flu, some of the others originated from what seem like a very tiny kernels of truth.

The great majority of COVID tests will still be authorized after December 31.
The great majority of COVID tests will still be authorized after December 31.

But even those tiny kernels of truth are often being misrepresented.

“After December 31, 2021, CDC will withdraw the request to the U.S. Food and Drug Administration (FDA) for Emergency Use Authorization (EUA) of the CDC 2019-Novel Coronavirus (2019-nCoV) Real-Time RT-PCR Diagnostic Panel, the assay first introduced in February 2020 for detection of SARS-CoV-2 only.”

For example, while it is true that the CDC is withdrawing the request for EUA of their 2019-nCoV RT-PCR assay, that only applies to their own 2019-nCoV RT-PCR assay. That’s the COVID test put out by the CDC.

That means that hundreds of other 2019-nCoV RT-PCR assays will still be available from other manufacturers, as will all of the rapid antigen tests.

LabCorp does not do most consumer COVID testing at their draw stations. Health care providers obtain COVID respiratory samples and send them to Lab Corp for processing.
LabCorp does not do most consumer COVID testing at their draw stations. Health care providers obtain COVID respiratory samples and send them to Lab Corp for processing.

And yes, while we are starting to see more and more combination tests that can detect and identify multiple viral and bacterial diseases, that doesn’t mean that any of other tests aren’t accurate.

“Generally, antigen tests are indicated for the qualitative detection of SARS-CoV-2 antigens in authorized specimen types collected from individuals who are suspected of COVID-19 by their healthcare provider within a certain number of days of symptom onset.”

Potential for False Positive Results with Antigen Tests for Rapid Detection of SARS-CoV-2 – Letter to Clinical Laboratory Staff and Health Care Providers

For example, while a COVID test can tell you if you are infected with SARS-CoV-2 and a flu test can tell you if you are infected with the flu virus, neither can detect other viral infections. You wouldn’t expect them to though.

Combination tests, on the hand, are designed to detect multiple infections. Some can detect SARS-CoV-2, RSV, and flu, while others can detect dozens of viral and bacterial infections!

So why not always use the broadest test available?

t can sometimes be helpful to know exactly which virus or bacteria is making you sick, but that information does come with a price.
It can sometimes be helpful to know exactly which virus or bacteria is making you sick, but that information does come with a price.

The combination tests are much more expensive!

And you don’t always need to differentiate between SARS-CoV-2, rhinovirus, RSV, and flu, especially when there has been little or no flu activity and there is no treatment for most of those other infections.

Misinformation about COVID Tests Fact Check

Despite all of the misinformation still being pushed on social media, folks should know that COVID tests, both rapid and PCR, are readily available and can be very reliable.

“Even though PCR tests are widely regarded as the gold-standard for detecting SARS-CoV-2, they are not perfect, and their probability of detecting an infection will vary depending on when that test is performed. A PCR test done to confirm a coronavirus infection in someone who has recently developed COVID-19-like symptoms, is more likely to detect the presence of viral RNA, than a test performed on someone who only became infected the day before, or who became infected several weeks ago.”

False negative: How long does it take for coronavirus to become detectable by PCR?

And while COVID tests aren’t perfect, and may sometimes give false negative or false positive results, don’t believe the people pushing the idea that COVID tests can never be trusted.

More on COVID Test Fact Checks

2 thoughts on “Misinformation about COVID Tests”

  1. drjones2003

    Wow, it is as if Iannelli never heard of Kary Mullis, and or expects that NO ONE ELSE knows about the Nobel Prize winner (1993, chemistry). How did Mullis put it? “Fauci is an idiot, and I (Mullis) would say it to his face!’

    Trust the SCIENCE (aka, Megalomaniac Fauci)? Viral load tests, PCR test, and antigen tests do NOT prove that a person is: (a) sick; and or (b) contagious. So what is the point? Sell more tests, sell more masks, and pimp vaccines?

    I have a better idea, F-off and choke on the BS of PCR, and vaccines.

    Reply

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