25% of CORONAVIRUS CDC test kits are inaccurate, studies
Even if you have been tested by a doctor, your COVID test results may have been false.
The coronavirus test has been a hot button problem since the beginning of the pandemic. First of all,There were not enough coronavirus tests Go around. Now a new problem has emerged - how accurate the tests are. According to a study of July 17 published in theInternational newspaper of geriatrics and rehabilitation25% of nucleic acid coronavirus tests distributed by disease control and prevention centers (CDC)Provided inaccurate results.
The main author of the study,Sin hang lee, MD, Director of the Milford Molecular Diagnostic Laboratory, revealed that the test kits gave 30% fake-positive levels and a false negative rate of 20%. According to the report, "2 false negatives and 3 false positives were found in 20 reference samples", which means 25 of the total tests studied gave inaccurate results.
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To determine these false positive and false negative rates, the Department of Connecticut's public health microbiology provided LEE 20 tests, which were then reused using its own methodology, which examines samples on a level. Cellular, rather than testing a fluid without any cellular material of potentially infected oral and nasal secretions.
Although the results of Lee tests can be alarming, they also highlighted another discovery:New mutations of the virus. Using Sanger Sequencing-ANucleotide determination method (A DNA construction block) Sequences In DNA samples - two tests that initially provided false negatives and a test that produced a positive result were judged positive for coronavirusand A mutation of the virus, which means that two variants of the virus can infect a person simultaneously.
So, what does it mean for coronavirus tests in the future? Lee says that the level of inaccurate trial results should encourage more in-depth test methods, especially among vulnerable populations.
"Long-term care facilities with exceptionally highCovid-19 Tolls of Death Among their residents and hospitals with nose surgery departments and active throat, it may be necessary to install an extremely sensitive and very precise Sanger sequencing test, "said Lee.
However, it is not only the test you use who can contribute to inaccurate results - when you are tested, it's also important. According to a study of May 2020 published in theAnnals of internal medicine, to test the day when a person is infected with coronavirus will probably begive a false negative rate of 100%; Day 8 after being infected, however, this rate falls to only 20%. And if you want to know your coronavirus status,This is the type of Covid-19 test that you should ask.
Update: An earlier version of this article stated that Lee's study revealed that 50% of Coronavirus CDC test kits are inaccurate. Article has since been corrected.
