Medico厂家核酸检测原理介绍

Medico厂家核酸检测原理介绍

We need scientific methods to diagnose or rule out whether a patient is infected with the new coronavirus.

目前有具体权威的诊断检测方法, 而且只有一个: 核酸检测.
1. Principles of conventional nucleic acid detection

Direction: 遗传学方法: RT-PCR Reverse transcription polymerase chain reaction Test object: Virus gene itself Accuracy: Maximum time: a few hours to a few days Advantages: High accuracy, is the only basis for diagnosis at present Disadvantages: Long time, High barriers to professional operation

The new coronavirus is an RNA virus that can replicate itself when it enters and infects the human body. As long as the person is infected, there must be a virus in the body. But because the virus is too small to be seen under the microscope, it cannot be confirmed directly by observation.

Throat swab sample collection.

Everyone should be familiar with the term “咽拭子”, which is the primary source of samples for new coronavirus testing. 简单地说, it is to use a plastic stick to reach the patient’s throat and wipe it, collect some respiratory fluid, then package it, refrigerate, and send it to the laboratory for RT-PCR testing.

然而, experts soon discovered that the results of the throat swab samples were inaccurate and the probability of false negatives was high. 所以, in different countries or regions, front-line medical workers may also collect samples such as nasal swabs, 痰, and feces for testing.