The Test Principle Of Transportation And Preservation Medium

Virus is composed of nucleic acid and protein, which is small and simple in structure. Because there is no cell structure, the virus itself cannot replicate, but invades the gene into the host cell, and replicates the new virus with the help of the latter replication system. After virus sample collection, in order to maintain the activity of virus sample and prolong the survival time of virus in the sample, the sampling swab will be put into the delivery medium for storage and transportation.

1. The combination of multiple antibiotics has broad-spectrum anti-bacterial and anti fungal effects.

2. As a protein stabilizer, bovine serum protein(BSA) can form a protective film on the protein shell of the virus, which makes it difficult to decompose and ensure the integrity of the virus.
3. Hanks buffer to build a neutral environment is helpful to increase the survival time and infection stability of the virus.
4. Phenol red is used as acid-base indicator, and the color change area is 6.6 (yellow) - 8.0 (red), which is red in 7.2-7.4.