Nucleic acid tests differ for different pathogens. For example, the new crown nucleic acid test does not require a blood draw, while the nucleic acid test for hepatitis B, hepatitis C, HIV and other viruses requires a blood draw. Currently, nucleic acid testing is generally referred to as neocollins nucleic acid testing, which does not require a blood draw.
Common types of samples used for the new coronavirus nucleic acid test include throat swabs and nasal swabs, which do not require a blood test. Blood samples are mainly used for the detection of virus-specific antibodies, but due to its time-consuming volume, not easy to collect and other shortcomings, nasopharyngeal swabs or oropharyngeal swabs are currently the commonly used sample types.
Neocoronavirus is an RNA-only virus. If a specific nucleic acid sequence of neocoronavirus is detected in the sample during the testing process, it suggests that the person from whom the specimen was collected has the possibility of being infected by neocoronavirus.
Note that nucleic acid testing should not be performed until 24h after vaccination against Neocoronavirus. In addition, smoking, drinking or chewing gum should be avoided 30min before sampling.