• PrimeStore MTM viral transport media for infectious diseases

Laboratory Products

PrimeStore MTM viral transport media for infectious diseases

Sep 16 2020

PrimeStore® MTM is a molecular transport media that gives the user a ‘snapshot’ in time of a sample by preserving and stabilising DNA and RNA.

PrimeStore MTM (Molecular Transport Medium) was designed and optimised for molecular testing allowing pathogenic samples to be collected, transported, and processed safely and efficiently. Millions of tubes of PrimeStore MTM have been sold to clients around the world during the SARS-CoV-2 pandemic.

The molecular transport medium inactivates infectious biological pathogens including viruses, and gram-positive/negative bacteria whilst preserving and stabilising labile DNA and RNA for downstream molecular applications.

PrimeStore MTM was invented and optimised specifically for molecular testing. In contract viral transport media (VTM) were designed for transporting samples intact to be cultured prior to the widespread use of molecular testing and contain ingredients that inhibit optimal molecular testing.

As the only FDA Class 2 cleared product for microbial nucleic acid storage and stabilisation, hospitals and laboratories trust that PrimeStore MTM provides safer and more reliable testing than UTM/VTM, saline, or research use only devices. The key differences between PrimeStore MTM and Viral / Universal Transport Mediums include:

  • PrimeStore MTM does not require cold chain storage and transportation
  • PrimeStore MTM inactivates the sample, along testing to take place outside of controlled containment
  • PrimeStore MTM destroys enzymes and nucleases, but preserves DNA and RNA
  • PrimeStore MTM does not inhibit PCR
  • PrimeStore MTM has a long shelf life – 24 months, whereas as most UTM and VTM products can only claim six months

Laboratories have independently validated PrimeStore MTM with a range of platforms such as Roche, Thermo Fisher, Abbott, Siemens, Luminex, Bio-Rad, PSS, Promega, and BioMerieux, as well as the Cepheid GeneXpert point of care platform.

Another key feature of PrimeStore MTM is that it allows lab teams to process multiple tests from a single sample that has been inactivated and stabilised in PrimeStore MTM.  This has additional advantages for testing during the upcoming flu season as both COVID-19 and flu can be tested from a single swab sample.

There are multiple peer-reviewed scientific papers, dating from 2011 onwards, supporting the use of PrimeStore MTM for pathogen detection from a wide range of clinical matrices and biofluid types collected and processed in different countries. These are available as links from the EKF Diagnostics website.

PrimeStore MTM is manufactured in the USA and UK and is available in packs of 100 tubes with a 1.5 mL fill in a choice of 3, 4 or 5 mL tubes. Tubes have external threads with leak-proof caps and can be shipped at 2-25 degrees centigrade (36-77 F).


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