Is COVID-19 positive confirmed?

COVID-19's positive reaction has been generally confirmed, but it needs to be checked again. If it is positive again, it can be confirmed. COVID-19 nucleic acid test is the most important basis for the diagnosis of COVID-19 infection. COVID-19 is positive for nucleic acid, which may be asymptomatic infection. If there are symptoms, patients diagnosed in COVID-19 can generally be diagnosed. However, some people will be antibody positive after injecting COVID-19 vaccine, which may also lead to nucleic acid positive after recovering from COVID-19's disease. Diagnosis needs professional doctors to judge.