How to quickly screen for new coronaviruses and influenza viruses

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On the battlefield of new coronary pneumonia diagnosis and treatment, there are often problems of false negative and false positive reagent diagnosis. This not only troubles the diagnosis link, but also exists in the rehabilitation link. The high incidence of influenza in autumn and winter is approaching, and precise diagnosis and precise treatment are particularly important.

Nowadays, not all fever and cough symptoms are caused by the new coronavirus. Other viral infections and common respiratory tract infections can also cause symptoms similar to new coronavirus infections, such as influenza A, B influenza virus, human parainfluenza virus, and respiratory syncytial virus. Bacterial infections such as Haemophilus influenzae and Streptococcus pneumoniae can also cause similar symptoms. In addition, it is another flu season. If such patients cannot be quickly screened out through testing, these people will easily be crowded in fever clinics and have close contact with real patients with new coronary pneumonia, causing cross-infection. Clinically, there is an urgent need for testing reagent products that can detect multiple pathogens at once.

In order to solve this problem, Cheng Jing's team specially designed and developed two kits for the new crown pneumonia epidemic: six respiratory virus nucleic acid detection chip kits (constant temperature amplification chip method); eight respiratory pathogenic bacteria nucleic acid detection chip kits. Both kits have been approved. "From getting the sample to the result, both of these two kits only take less than one and a half hours, which is more than twice as fast as the single-index nucleic acid detection products that have been approved. One kit can detect 6 A virus, another kit can detect 13 kinds of bacteria, these two together can distinguish and diagnose 19 kinds of pathogens.

In terms of nucleic acid detection, a newly approved kit based on constant temperature amplification chip technology that can quickly detect six respiratory viruses at a time has three outstanding advantages compared with the original nucleic acid detection: first, it can quickly detect A variety of common respiratory viruses are tested together; the second is that the detection speed is faster, and all tests are completed in 1.5 hours; the third is that the clinical application can help clinical medical staff to make differential diagnosis and quickly distinguish who is New coronavirus infection, which patients are infected by other viruses, distinguish between co-infection and cross-infection.

With the opening of schools one after another, the risk of cross-infection is increasing day by day. The advantages of this diagnostic kit have gradually emerged, providing rapid, accurate and effective diagnosis for many patients and frontline medical staff.