Eating an orange does not usually affect the nucleic acid test, but overeating before the test is not recommended. Eating oranges before the nucleic acid test does not usually affect the sampling or results of the nucleic acid test. Oranges do not contain ingredients that may cause a positive nucleic acid test. The main purpose of the nucleic acid test is to detect the presence or absence of Neocollins, and as long as the oranges do not carry Neocollins, eating oranges prior to the nucleic acid test will have no definitive effect on the results. As the throat will be irritated during the collection of throat swabs, which may cause nausea and vomiting, it is common to ask people not to eat too much before the test. At this time of the epidemic, it is recommended to actively cooperate with the local policy requirements for nucleic acid testing, and to report and isolate any positive test results in a timely manner, as epidemic prevention and control is everyone’s responsibility.