Can eating oranges really be nucleic acid positive?

Eating oranges will not be nucleic acid positive. It's just that someone dropped orange juice directly on the antigen test kit, so it's positive. This is the wrong way to detect nucleic acid.

There are many small videos on the internet showing orange juice or orange juice dripping on the antigen detection kit, and the results are positive. But some people say that you can't eat oranges before you make antigens or even nucleic acids, otherwise it will be yang.

I recently received such a small video in the WeChat circle, and I believe many small partners have also received such a small video. Because everyone saw the video with their own eyes, someone dropped orange juice directly on the COVID-19 antigen test kit, and the result was positive. The video in the commentary is particularly clear. The last display is "two bars", so I feel that if I eat oranges before the nucleic acid test, it will really show positive. Too scared to eat oranges. Now is the season for oranges to go on the market. Such videos are going viral on the Internet, which will definitely have an impact on the orange market.

In fact, researchers did this experiment at 202 1, not only orange juice or orange juice, but also many kinds of drinks, such as Coca-Cola, Fanta, Red Bull, Vodka, Whiskey, Brandy, Soda and so on. If it drops directly in the antigen test, all these will be positive, so the researchers tested the nucleic acids of these drinks, but no COVID-19 was detected.

The correct antigen detection method is: after sampling the throat swab, put it into the sampling tube with sample treatment solution, and then drop the reagent strip. If orange juice or orange juice is mixed with sample treatment solution and dropped into the sample for detection, the antigen test will not be positive and a red line will appear.

While orange juice or orange juice is directly dripped into the COVID-19 antigen detection kit, and the treatment solution contains a buffer system, so that antigen and antibody can be combined at PH value. Orange juice or orange juice dripping directly into reagent strips destroys the PH environment, resulting in nonspecific antigen-antibody results and false positive. (But true antigen-antibody binding needs to maintain PH)

Nucleic acid detection experts say that it is meaningless to detect viruses directly with orange juice or orange juice, although antigen detection and nucleic acid detection are completely different. The antigen kit samples epithelial cells in human nasal mucosa, but orange juice or orange juice is directly dropped into the kit, and the sampling is not up to standard at all. People do antigen test after eating oranges, and its sampling site is in the nasal cavity, so no matter what food they eat, it will not affect the test results.

The sample used for nucleic acid detection is an oropharyngeal swab. In fact, all the nucleic acid tests we do are under total quality control. Before sampling, during sampling and after sampling, we should ensure the correct operation, so as to ensure the accuracy of nucleic acid. Nucleic acid detection is the result of nucleic acid judgment of pathogenic microorganism virus, and the extracted nucleic acid should be eluted and purified. Therefore, eating oranges has little effect on nucleic acid detection, so it can be said that it has no effect.

However, experts suggest that you should not drink water or eat food half an hour before the test to prevent reflex vomiting caused by the stimulation of throat swab. Little friends, eating oranges will not be nucleic acid positive. There are many rumors in life that need us to distinguish well and learn some knowledge to distinguish carefully.