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SALINE SOLUTION (0.85%)

SALINE SOLUTION (0.85%)

For transport of SARS-CoV-2 [COVID-19] specimens

The Saline Solution (0.85%) is an isotonic solution, manufactured in compliance with ISO 13485:2016 standards. It is intended to be inoculated with nasopharyngeal (NP) or oropharyngeal (OP) synthetic fiber swab specimens (Not provided, see IFU for details), to be analyzed in the laboratory with validated qRT-PCR assays. This Saline Solution (0.85%) has been validated for the detection of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that causes COVID-19 disease in humans.1,2 The use of this device for other viral specimens is the responsibility of the end user including the validation thereof.

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SPECIFICATIONS

Product Principle
  • Intended to aid in the process of collection and transport of human clinical specimen
  • Ensures a non-replicating competent status of SARS-CoV-2
  • Is aseptic and does not contain bacteria or fungi growth-inhibition agents.
  • Validated to be compatible with the identification of SARS-CoV-2 using qRT-PCR technology
Simple Convenience
  • Viral specimen stored in the Saline Solution (0.85%) at room temperature (18–25 °C) for 72 hours is compatible with downstream qRT-PCR tests
  • Compatible with approved nucleic acid extraction and qRT-PCR tests
Storage

Do not store frozen. Keep away from direct light and heat exposure. Do not use expired solution. Do not use
the solution if it appears to be damaged, leaking or the solution appears to be cloudy or evaporated.

Specimen

Nasopharyngeal (NP) or oropharyngeal (OP) synthetic fiber swab specimens

PERFORMANCE CHARACTERISTICS

This test was performed to evaluate the Biomed Saline Solution (0.85%) by detection of heat inactivated cell lysate from SARS-Cov-2 (ATCC® VR-1986HK™) infected cells, after RNA was isolated using the QIAamp® Viral RNA Mini Kit (QIAGEN®). Detection of the isolated SARSCov-2 RNA was by qRT-PCR using New England Biolabs® OneTaq® One-Step RT-PCR kit and run on a Roche® Lightcycler® 96 with EvaGreen® (Biotium®) detection from samples after storage of viral lysates in Saline Solution (0.85%) at 24, 48 and 72 hours at room temperature (25°C). Synthetic RNA standard (BEI Resources) at 2.9 x 108 was serially (10-fold) diluted for the standard (STD) in the amplification reaction.

The assay results demonstrate consistent amplification and Cq quantification of the nCov-2 N gene (using the N1 CDC primer) in the solution after incubations. In addition, excellent dilution linearity is demonstrated across all samples and replicates (See Figure 1) indicating consistency in the performance of the solution Saline Solution (0.85%) replicate samples and incubation time. This data indicates that the Biomed ISO 13845 manufactured Saline Solution (0.85%) does not negatively interfere with the qRT-PCR detection of Sars-Cov-2 viral nucleic acid materials after incubation at room temperature 25°C for 72 hours. A delay in amplification signal was observed after 168-hour (7 days) incubation at 25°C, probably due to specimen degradation. However, incubation at 4°C for 168 hours (7 days) did not negatively interfere with the qRT-PCR performance. In conclusion, the result indicates that the Saline Solution (0.85%) is compatible with the designated viral specimen inoculation, nucleic acid extraction and qRT–PCR assay when used as described herein.

 

REGULATORY

For in vitro diagnostic use. 
Not available in all countries; please inquire. 
FDA listed 
 

REFERENCES

FAQs on Viral Transport Media During COVID-19

CDC preventing transmission of infectious agents in healthcare settings guidelines
 

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