Viral Transport Medium Kit Principle Viruses are composed of a nucleic acid molecule and protein or only protein, it’s small in size and simple in structure. Since there is no cellular structure, the virus itself cannot replicate, but instead invades the gene into the host cell and replicates the new virus with the help of the latter's replication system. After the virus sample is collected by Viral Sampling Swab, in order to maintain the activity of the virus sample release from Viral Sampling Swab and prolong the survival time of the virus in the sample, the Viral Sampling Swab sample will be stored and transported in the Viral Transport Medium. Composition and Inspection Principle of Viral Transport Medium Kit (Virus preservation solution): Main components of the Viral Transport Medium Inactivated Viral Transport Medium Kit Phosphate, guanidine salt Cultured Viral Transport Medium Kit Phosphate, Tris, sodium chloride For COVID-19, flu, swine flu, HFMD and other respiratory and enteric virus nasal and throat sample sampling and delivery. The collected samples can meet the requirements of various subsequent experiments. The combination usage of various antibiotics has antibacterial and antifungal effects. As a protein stabilizer, bovine serum albumin (BSA) can form a protective film on the protein shell of the virus, making it difficult to decompose and ensuring the integrity of the virus. Viral Transport Medium Kit Feature Flocked Nylon Fibers Structure - For optimum sample collection Compared with the traditional fiber Viral Sampling Swab, flocking Viral Sampling Swab adopts unique spray type nylon pile implantation technology, the open fiber structure in Viral Sampling Swab has outstanding sample collection ability and allows for more efficient release of microorganisms collected in Viral Sampling Swab into Viral Transport Medium. Antibiotics in the Viral Transport Medium can effectively prevent bacterial and fungal contamination. BSA is added to the Viral Transport Medium, which can protect the virus samples and improve the sample separation rate.

Definition of transport medium Transport media are special media formulated to preserve a specimen and minimize bacterial overgrowth from the time of collection to the time it is received at the laboratory to be processed. Depending on the type of organisms suspected in the sample, transport media may vary. However in general, transport media are classified on the basis of physical state as semi solid and liquid and also in basis of their utility as bacterial or viral transport media. Transport media contains only buffers and salt instead of containing any nutritional ingredients such as carbon, nitrogen, and organic growth factors so as to prevent microbial multiplication. Addition of antibiotics and other substances like glycerol may be added for transporting specimens for tissue culture. Classification of commonly used transport mediums 1.Inactive preservation • Instantly inactivate viruses. • Reduce the risk of pathogen spread due to medium incomplete inactivation or other causes.(during transport, storage, use, etc.) • More suitable for collectuon of potentially harmful pathogens and known pathogens of severe infectious diseases (such as 2019-nCoV, Ebola virus, etc.) and provides good protection for medical personnel. 2.Cultured preservation • Collection, nucleic acid detection and isolated culture of virus. • The formula is upgraded from HBSS, with adding of multiple components like BSA, Tris and has better ability than HBSS to maintain virus integrity.

The success of diagnosis depends largely on th he quality of the specimen. Disposable Specimen Collection Swab is suitab le for collection and release of clinical specimens containing viruses, chlamydia and mycoplasma or ureaplasma organisms. Flocking swab adopts unique spray type nylon pile implantation technology, and the open fiber structure which has outstanding sample collection ability, and allows for more efficient release of microorganisms collected in a specimen onto culture medium。 Compared with the traditional fiber swabs, flocked swabs are ideal for collecting large amount of cells and rapid elution of the specimens instantly release the cells into the transport medium. It is well recognized and adopted by the diagnostic test kit manufacturers who produce reagents in molecular genetics, forensics, clinical laboratories sectors. The completely inert components desiign makes the flocked swabs ideal for PCR work for scientists using PCR techniques, therefore, the new flocked swabs are PCR compatible and certified RNAse and DNAse free.