Nucleic acid testing generally refers to the New Coronavirus Nucleic Acid Test. Eating an orange will not cause a nucleic acid test to become positive. At this stage of the epidemic, nucleic acid testing refers to the detection of the ribonucleic acid of the virus. This is done by sampling, extracting, and machine-verifying respiratory, blood, or fecal specimens from patients to determine if the virus is present in the collected samples. Once the test result is “positive” for RNA, it proves that the virus is present in the patient’s body, and a retest is required. Oranges consumed in daily life generally do not contain the novel coronavirus, and the human body cannot be infected with the novel coronavirus after consuming oranges. Therefore, it is impossible to detect the nucleic acid of the virus through the collection of samples from the respiratory tract, blood and feces. It is recommended that you do not eat or drink alcohol for two hours before the nucleic acid test to avoid possible vomiting and regurgitation during the sampling process. Wear a mask for personal protection and keep a social distance during testing.