Clearview is now offering environmental surface sample testing to confirm the presence/absence of SARS-CoV-2 (COVID-19) on surfaces utilizing quantitative RT-PCR technology.
Recent studies suggest that the SARS-CoV-2 virus may remain viable and infective on surfaces for hours to days, depending on the surface’s material type (fabric, tile, steel, etc.). Thorough cleaning and disinfection of frequently touched surfaces are recommended by the U.S. Centers for Disease Control and Prevention (CDC) and believed to be essential in preventing the spread of infection. The presence or absence of the viral genetic material on environmental surfaces can now be directly tested with SARS-CoV-2 molecular-based test and used to demonstrate effectiveness of cleaning protocols
The process for analysis will employ a RT-qPCR test that targets the SARS-CoV-2-nucleocapsid N gene. This method is specified by the CDC and authorized by the U.S. Food and Drug Administration (FDA) for clinical COVID-19 diagnostics. Since the human RNAse P gene is not analyzed in our test, the EMSL RT-qPCR test can only be used for environmental testing on surfaces; not for processing patient SARS-CoV-2 specimens.
Test Result Interpretation
EMSL’s SARS-CoV-2 (COVID-19) results are reported in either ‘Detected’ or ‘Non-Detected’ for two indicators of the SARS-CoV-2 coronavirus, per swab, as directed by the CDC. Indicator one is 2019-nCoV_N1 and indicator two is 2019-nCoV_N2. Both indicators detect the nucleocapsid protein ‘N’ gene of the SARS-CoV-2 coronavirus.
A result of ‘Detected’ for either indicator can be interpreted with confidence that the area swabbed did contain SARS-CoV-2 coronavirus particles that could be deemed as potentially infectious.