The Classification of Viral Transport Media- Zhejiang Wantaifu Biotechnology Co., Ltd

The Classification of Viral Transport Media

Jul 11,2023

Viral transport media (VTM) is a specialized liquid medium used to collect, preserve, and transport clinical specimens containing viruses. It helps maintain the viability and stability of viral particles during transportation from the collection site to the laboratory for diagnostic testing. VTMs are classified based on their composition and intended use. Here are some common classifications of viral transport media:

Liquid-based VTMs: These are the most widely used VTMs and typically consist of a buffered saline solution containing various components. These components may include salts (such as sodium chloride), pH stabilizers, protein stabilizers (such as bovine serum albumin), and antimicrobial agents (such as antibiotics or antifungal agents). The liquid-based VTMs provide a suitable environment for the preservation of viral particles while inhibiting the growth of bacteria and fungi.

Universal transport media: Universal transport media (UTM) is a type of VTM designed to transport a broad range of pathogens, including viruses and bacteria. UTM usually contains a specialized transport medium that can maintain the viability of different microorganisms, including viruses, bacteria, and Chlamydiae. It often contains stabilizing agents and antimicrobial compounds to prevent the growth of bacteria and fungi during transportation.

Viral transport swabs: These VTMs consist of a swab (typically made of synthetic material) and a tube containing a VTM solution. The swab is used to collect the clinical specimen, such as nasal or throat swabs, and is then placed into the tube containing the VTM solution. The VTM solution helps maintain the viability of the collected viruses during transport.

Gel-based VTMs: Gel-based VTMs consist of a gel matrix along with the VTM solution. The gel serves as a stabilizing and protective matrix that helps preserve viral particles and prevents their degradation during transportation. This type of VTM is particularly useful for preserving viruses that are sensitive to environmental factors or prone to degradation.