Teens use soft drinks to fake positive COVID-19 test

Teenagers have figured out how to use soft drinks to fake a positive COVID-19 test, and the authors of a new study warn schools and other groups to be aware. As of July 1, videos uploaded to social media under the search term #fakecovidtest, featuring young people applying various liquids to rapid antigen COVID-19 tests, had been viewed millions of times, according to the British news website inews.co.uk. That report bit.ly/3hLMoWT, and others, prompted University of Liverpool researchers to study the effects of applying soft drinks and artificial sweeteners to the test swabs. All four sweeteners tested produced negative results on rapid COVID-19 tests, as did spring water. But 10 of 14 soft drinks produced positive or weakly positive results, with no apparent link between the test results and the soft drinks' ingredients, the researchers reported on Monday on medRxiv ahead of peer review. Since March, UK schools have asked pupils without symptoms to test twice weekly, the authors note. A positive test can result in an entire class having to isolate at home. Based on their findings, they advise, testing "should be performed first thing in the morning, prior to the consumption of any food or drinks, and supervised where feasible."


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