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2. Do at-home flu tests really work? Here's everything you need ...

   www.aol.com/lifestyle/home-flu-tests-really...

   After taking a nasal swab sample and stirring it into the test kit’s sample vial, you find out within 30 minutes if you have COVID-19 or influenza A or B. ... and false negatives may be more ...

3. What Really Causes a False Positive COVID-19 Test? Experts ...

   www.aol.com/false-positive-covid-19-test...

   False positive COVID-19 tests—when your result is positive, but you aren’t actually infected with the SARS-CoV-2 virus—are a real, if unlikely, possibility, especially if you don’t perform ...

4. False positives and false negatives - Wikipedia

   en.wikipedia.org/wiki/False_positives_and_false...

   The false positive rate (FPR) is the proportion of all negatives that still yield positive test outcomes, i.e., the conditional probability of a positive test result given an event that was not present. The false positive rate is equal to the significance level. The specificity of the test is equal to 1 minus the false positive rate.

5. FDA authorizes over-the-counter combined COVID-19 and flu test

   www.aol.com/fda-authorizes-over-counter-combined...

   Based on an FDA analysis, the test correctly identified 99% of negative and 92% of positive SARS-CoV-2 samples; 99.9% of negative Flu A and B samples; and 92.5% and 90.5% of positive Flu A and Flu ...

6. Cross-reactivity - Wikipedia

   en.wikipedia.org/wiki/Cross-reactivity

   Cross reactivity has implications for flu vaccination because of the large number of strains of flu, as antigens produced in response to one strain may confer protection to different strains. [3] Cross-reactivity need not be between closely related viruses, however; for example, there is cross-reactivity between influenza virus -specific CD8+ T ...

7. COVID-19 misinformation - Wikipedia

   en.wikipedia.org/wiki/COVID-19_misinformation

   According to a study published by the Reuters Institute for the Study of Journalism, most misinformation related to COVID-19 involves "various forms of reconfiguration, where existing and often true information is spun, twisted, recontextualised, or reworked"; less misinformation "was completely fabricated". The study also found that "top-down ...

8. Are False Positive Covid Tests Common? Doctors Explain. - AOL

   www.aol.com/false-positive-covid-tests-common...

   A false positive Covid-19 test result can happen, but it’s rare, says Brian Labus, Ph.D., M.P.H., assistant professor at the University of Nevada Las Vegas School of Public Health.

9. Dried blood spot - Wikipedia

   en.wikipedia.org/wiki/Dried_blood_spot

   Dried blood spot testing (DBS) is a form of biosampling where blood samples are blotted and dried on filter paper. The dried samples can easily be shipped to an analytical laboratory and analysed using various methods such as DNA amplification or high-performance liquid chromatography. [citation needed]