Release the collective photo of the new coronavirus. The blue mark shows the virus particles. The small black spots in the virus particles are the nucleic acids on the cut section, which are the parts of the coronavirus that contain the genome. This genome is of great significance for our detection and is the material basis of our detection.
Molecular diagnosis is an important part of disease diagnosis. Disease diagnosis is a complex problem, especially when new diseases appear. For an infectious disease, molecular diagnosis has become a very important index when the pathogen is known. Its main purposes are as follows: first, it determines whether clinical symptoms, such as have a fever, is caused by COVID-19, so that it can not be confused with other diseases. Second, qualitative (such as positive and negative) or quantitative description of the disease process, such as the amount of virus load. Third, from a more refined point of view, some molecular diagnosis can also provide the treatment scheme of the disease, help to determine its scheme and provide evidence support. Fourth, from the perspective of viral diseases, we can track the variation, which is also very important. We can study and predict the evolution of infection and pathogenicity of the virus in the process of transmission.
What is molecular diagnosis? Molecular diagnosis in a narrow sense is generally nucleic acid detection. Nucleic acid detection refers to testing whether there is a specific sequence of DNA or RNA fragment in the sample as evidence of the existence of pathogenic microorganisms.