As a major global producer of epidemic prevention materials, China has made an important contribution to global epidemic prevention and control by supplying a large amount of urgently needed epidemic prevention materials to various countries during this New Crown pneumonia epidemic. Below, you will find an introduction to the categorization of virus sampling swab kits.
What is a virus sampling swab kit?
Virus sampling swab kit is a kind of virus sampling and transfer product for virus nucleic acid detection, generally consisting of disposable sampling swab, virus sampling tube and virus preservation solution, which can be used for nasal, pharyngeal and oropharyngeal new crown virus sampling swab kit, in which virus preservation solution is also called Viral Transport Medium (VTM). According to the composition and function of virus preservation fluid, it is generally divided into two types: "non-inactivated" and "inactivated".
1. Categorization of non-inactivated virus sampling swab set
In the non-inactivated new coronavirus sampling swab kit, the components of the virus preservation solution usually include nutrients (such as salts, proteins, glucose), bacteriostatic agents, buffers, phenol red indicators, etc., which are necessary for the survival of the virus. This virus preservation solution can maintain the virus activity to the maximum extent and can be subsequently used not only for virus detection but also for virus culture and isolation.
Non-inactivated New Coronavirus Sampling Swab Kit
The purpose of the Non-Inactivating Virus Sampling Swab Kit is to preserve and transfer active virus samples, so virus preservation solution constitutes the basic feature of this product, which is classified according to virus preservation solution. Virus preservation solution belongs to the medium for virus maintenance, according to the general rules of classification I, III (II) and VI, non-inactivated virus sampling swab set should be classified under tariff code number 3821.0000, export tax rebate rate of 0.
2、Inactivated new coronavirus sampling swab set classification
In the inactivated neo-coronavirus sampling swab kit, the components of the virus preservation solution usually include buffer, virus lysis agent (usually guanidine), surfactant, etc.. This preservation solution allows direct lysis of the virus to release nucleic acid for easy use in subsequent nucleic acid testing.
Inactivated virus sampling swab set product introduction
The purpose of an inactivated virus sampling swab kit is to preserve and transfer nucleic acid samples of inactivated viruses, so virus preservation solution constitutes the basic feature of this product, which is categorized by virus preservation solution. Virus preservative is a diagnostic or experimental preparation reagent, according to the general rules of classification I, III (II) and VI, inactivated virus sampling swab set should be classified under tariff No. 3822.0090, export tax rebate rate of 13%.
