A family may have one new crown positive and one new crown negative. It is mainly related to the method of testing, frequency of testing, and self-protection.
1. Detection method: the detection method of new crown pneumonia has two main methods: nucleic acid and antigen, antigen also has colloidal gold method, etc. The probability of false-positive antigen test is still very high, so if you check the antigen is positive, you should review it through nucleic acid test. Generally one person in a family is positive, to do a good job of self-isolation, timely cooperation with the epidemic prevention policy of isolation and treatment.
2. Frequency of testing: In some cases, it is necessary to test the nucleic acid several times to confirm the diagnosis, which is mainly different from the time of the formation of immune markers after the virus infects the human body, so there are a lot of infected people test many times to get a diagnosis, there has been a negative situation.
3. Self-protection: the same family, but the self-protection measures to do a good job, strong immunity, or just infected with the virus after the cure, is still in the window period of immunity, and then contact with the virus will not be positive, so the family may also appear a positive and a negative.
If a family member is positive for the new crown, it is recommended to report the case to the local authorities and go to a medical institution for isolation and treatment.
Tip: In this article, “new coronavirus pneumonia” and “new coronavirus pneumonia” have been renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.