What is nucleic acid detection, that is, after collecting human secretions, under laboratory conditions, through the analysis of virus RNA gene sequence, using PCR amplification method for detection, clinical etiology diagnosis. At present, nucleic acid detection is the most effective method to determine whether the patient is infected with the virus as early as possible, and to detect and treat the virus as early as possible.

Nucleic acid test swabs are divided into two types: nasal swab and pharyngeal swab. During the sampling process, the doctor will use a swab like a cotton swab to wipe the secretion around the pharynx, tonsil or nasal cavity. As long as it is "gently wiped", it is quick and painless. Medical institutions will disinfect the test area, and medical staff will also disinfect their hands to avoid cross infection. Generally speaking, the sampling process is safe and clean, and there is no need to worry about the risk of infection.

Two types of virus preservation solution of Desheng

So what are the types of swab preservation solution after sampling? Swab preservation solution can be divided into inactivated and non inactivated. At the beginning, almost all the swab preservation solutions used in the market are direct preservation of live virus, that is, non inactivated swab preservation solution. This preservation method will lead to higher infection risk for medical staff in sampling, transportation and detection. In view of this situation, anti epidemic measures should be taken It is very necessary to use the swab preservation solution to inactivate the virus directly.

It should be noted that: while inactivating the virus, we should also consider whether the preservation solution can stably preserve the integrity of the virus nucleic acid, so as to avoid the degradation of the nucleic acid in the sample before detection, resulting in "false negative" nucleic acid detection. The inactivated virus preservation solution produced and developed by Desheng can avoid this kind of problem.

In short, nucleic acid detection swab preservation solution can be divided into two categories. The inactivated preservation solution produced and developed by Desheng is a swab preservation solution with cleavage function, which contains cleavage salt of inactivated virus and cleavage protein to protect nucleic acid. Virus preservation and cleavage are completed in one step.

The other is the non inactivated preservation solution. On the contrary, it can protect the integrity of protein and nucleic acid of the virus. In addition to nucleic acid detection, it can also be used for virus culture research. The operating environment requirements of the two preservation solutions are not the same. The inactivated environment does not need to be so strict. Because of the risk of virus infection, the operating environment requirements of the non inactivated type are different Higher.