There is no such thing as a positive nucleic acid antigen; nucleic acid testing and antigen testing are two different testing techniques. A positive test indicates the possible presence of an infection with the pathogen in question. Nucleic acids belong to the genetic material, which is a general term for deoxyribonucleic acid (i.e., DNA) and ribonucleic acid (i.e., RNA), both of which are one of the most basic substances that make up life. Nucleic acid testing is a technique that verifies the presence of pathogens with the help of specific reagents and instruments, such as PCR. A positive nucleic acid test indicates infection with the pathogen in question. Antigens are generally foreign components that are outside of human tissues, such as viruses for example, which are mainly composed of genetic material such as viral capsids and nucleic acids. The antigen test is a test for viral shells or other protein components, and a positive antigen test corresponds to the presence of an infection with the pathogen in question. A positive antigen test also indicates the presence of a related pathogen infection. A positive new crown nucleic acid or antigen test must be combined with the patient’s clinical manifestations, imaging tests, laboratory tests, and retesting of nucleic acids before a diagnosis can be made.