Search Results

The Aptima® SARS-CoV-2 Assay is a nucleic acid amplification in vitro diagnostic test intended for the qualitative detection of RNA from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) isolated and purified from nasopharyngeal (NP) swab and anterior nasal (AN) swab specimens obtained from patients with signs and symptoms of COVID-19. Positive results are indicative of the presence of SARS-CoV-2 RNA. The Aptima SARS-CoV-2 Assay is intended for use as an aid in the diagnosis of COVID-19 if used in conjunction with other clinical, epidemiological, and laboratory findings. Clinical correlation with patient history and other diagnostic information is necessary to determine patient infection status. Positive results do not rule out bacterial infection or co-infection with other viruses. Negative results do not preclude SARS-CoV-2 infection and should not be used as the sole basis for patient management decisions. Negative results must be combined with clinical observations, patient history, and epidemiological information.

The Aptima SARS-CoV-2 Assay is a nucleic acid amplification in vitro diagnostic test developed for use on the fully automated Panther/Panther Fusion system to detect RNA from SARS-CoV-2 isolated and purified from nasopharyngeal and anterior nasal swab specimens collected into UTM/VTM or with the RespDirect Collection Kit. The Aptima SARS-CoV-2 Assay combines the technologies of target capture, Transcription Mediated Amplification (TMA), and Dual Kinetic Assay (DKA). Specimens are collected and transferred into their respective specimen transport tubes. The transport solutions in these tubes release the RNA target and protect them from degradation during storage. When the Aptima SARS-CoV-2 Assay is performed in the laboratory, the target RNA molecules are isolated from specimens by use of capture oligomers via target capture that utilizes magnetic microparticles. The capture oligomers contain sequences complementary to specific regions of the target molecules as well as a string of deoxyadenosine residues. A separate capture oligomer is used for each target. During the hybridization step, the sequence specific regions of the capture oligomers bind to specific regions of the target molecules. The capture oligomer:target complex is then captured out of solution by decreasing the temperature of the reaction to room temperature. This temperature reduction allows hybridization to occur between the deoxyadenosine region on the capture oligomer and the poly-deoxythymidine molecules that are covalently attached to the magnetic particles. The microparticles, including the captured target molecules bound to them, are pulled to the side of the reaction vessel using magnets and the supernatant is aspirated. The particles are washed to remove residual specimen matrix that may contain amplification reaction inhibitors. After the target capture steps are completed, the specimens are ready for amplification. Target amplification assays are based on the ability of complementary oligonucleotide primers to specifically anneal and allow enzymatic amplification of the target nucleic acid strands. The Aptima SARS-CoV-2 Assay replicates specific regions of the RNA from SARS-CoV-2 virus. Detection of the RNA amplification product sequences (amplicon) is achieved using nucleic acid hybridization. Single-stranded chemiluminescent nucleic acid probes, which are unique and complementary to a region of each target amplicon and Internal Control (IC) amplicon, are labeled with different acridinium ester (AE) molecules. The AE-labeled probes combine with the amplicon to form stable hybrids. The Selection Reagent differentiates hybridized from unhybridized probe, eliminating the generation of signal from the unhybridized probe. During the detection step, light emitted from the labeled hybrids is measured as photon signals in a luminometer and are reported as Relative Light Units (RLU). In DKA, differences in the kinetic profiles of the labeled probes allow for the differentiation of signal; kinetic profiles are derived from measurements of photon output during the detection read time. The Aptima SARS-CoV-2 Assay amplifies and detects 2 conserved regions of the ORF1ab gene in the same reaction, using the "glower" kinetic type. The 2 regions are not differentiated and amplification of either or both regions lead to RLU signal. The assay results are determined by a cut-off based on the total RLU and the kinetic curve type.

cobas® SARS-CoV-2 Qualitative for use on the cobas®5800/6800/8800 Systems is a real-time RT-PCR test intended for the qualitative detection of nucleic acids from SARS-CoV-2 in nasopharyngeal swab specimens collected from individuals with signs and symptoms of COVID-19 and in anterior nasal swab specimens collected from any individuals with or without signs and symptoms of COVID-19. Positive results are indicative of the presence of SARS-CoV-2 RNA. Positive results do not rule out bacterial infection or co-infection with other pathogens. Negative results do not preclude SARS-CoV-2 infection and should not be used as the sole basis for patient management decisions. Results are meant to be used in conjunction with clinical observations, patient history, recent exposures, epidemiological information, and laboratory data, in accordance with the guided by the relevant public health authorities.

cobas® SARS-CoV-2 Qualitative is based on fully automated sample preparation (nucleic acid extraction and purification) followed by PCR amplification and detection. The cobas® 5800 System is designed as one integrated instrument. The cobas® 6800/8800 Systems consist of the sample supply module, the transfer module, the processing module, and the analytic module. Automated data management is performed by the cobas® 5800 or cobas® 6800/8800 Systems software(s), which assigns test results for all tests. Results can be reviewed directly on the system screen, and printed as a report. Nucleic acid from patient samples and added internal control RNA (RNA IC) molecules are simultaneously extracted. Nucleic acid is released by addition of proteinase and lysis reagent to the sample. The released nucleic acid binds to the silica surface of the added magnetic glass particles. Unbound substances and impurities, such as denatured protein, cellular debris and potential PCR inhibitors, are removed with subsequent wash steps and purified nucleic acid is eluted from the magnetic glass particles with elution buffer at elevated temperature. External controls (positive and negative) are processed in the same way. Selective amplification of target nucleic acid from the sample is achieved by the use of targetspecific forward and reverse primers for ORF1 a/b non-structural region that is unique to SARS-CoV-2. Additionally, a conserved region in the structural protein envelope E-gene were chosen for pan-Sarbecovirus detection. The pan-Sarbecovirus detection sets will also detect SARS-CoV-2 virus. Selective amplification of RNA Internal Control is achieved by the use of non-competitive sequence specific forward and reverse primers which have no homology with the coronavirus genome. A thermostable DNA polymerase enzyme is used for amplification. The cobas® SARS-CoV-2 Qualitative master mix contains detection probes which are specific for the coronavirus type SARS-CoV-2, members of the Sarbecovirus subgenus, and the RNA Internal Control nucleic acid. The coronavirus and RNA Internal Control detection probes are each labeled with unique fluorescent dyes that act as a reporter. Each probe also has a second dye which acts as a quencher. When not bound to the target sequence, the fluorescent signals of the intact probes are suppressed by the quencher dye. During the PCR amplification step, hybridization of the probes to the specific single-stranded DNA template results in cleavage of the probe by the 5' to 3' exonuclease activity of the DNA polymerase resulting in separation of the reporter and quencher dyes and the generation of a fluorescent signal. With each PCR cycle, increasing amounts of cleaved probes are generated and the cumulative signal of the reporter dye increases concomitantly. Each reporter dye is measured at defined wavelengths, which enables simultaneous detection and discrimination of the amplified coronavirus target and the RNA Internal Control. The master mix includes deoxyuridine triphosphate (dUTP), instead of deoxythimidine triphosphate (dTTP), which is incorporated into the newly synthesized DNA (amplicon). Any contaminating amplicons from previous PCR runs are destroyed by the AmpErase enzyme [uracil-N-glycosylase], which is included in the PCR mix, when heated in the first thermal cycling step. However, newly formed amplicons are not destroyed since the AmpErase enzyme is inactivated once exposed to temperatures above 55°C. cobas® SARS-CoV-2 Qualitative is a qualitative nucleic acid test for use on the cobas® 5800/6800/8800 System for the detection of the 2019 novel coronavirus (SARS-CoV-2) RNA in individual nasal and nasopharyngeal swab samples collected in Copan Universal Transport Medium System (UTM-RT), BD™ Universal Viral Transport System (UVT), cobas® PCR Media, or 0.9% physiological saline. The RNA Internal Control, used to monitor the entire sample preparation and PCR amplification process, is introduced into each specimen.

The Xpert Xpress CoV-2 plus test, performed on the GeneXpert Xpress System, is a rapid real-time RT-PCR test intended for the qualitative detection of SARS-CoV-2 RNA in nasopharyngeal and anterior nasal swab specimens collected from individuals with signs and symptoms of respiratory tract infection. The Xpert Xpress CoV-2 plus test is intended for use as an aid in the diagnosis of COVID-19 if used in conjunction with other clinical, epidemiologic, and laboratory findings. Positive results are indicative of the presence of SARS-CoV-2 RNA. Positive results do not rule out bacterial infection or co-infection with other pathogens. Negative results do not preclude SARS-CoV-2 infection. The results of this test should not be used as for diagnosis and patient management decisions.

The Xpert Xpress CoV-2 plus test is a rapid, automated in vitro diagnostic test for the qualitative detection of viral RNA from SARS-CoV-2 in nasopharyngeal swab (NPS) and anterior nasal swab (NS) specimens collected from individuals with signs and symptoms of respiratory tract infection. The Xpert Xpress CoV-2 plus test is performed on GeneXpert Xpress System, which consist of a GeneXpert IV instrument that executes sample preparation, nucleic acid amplification and real-time fluorescent signal detection for the tests, and a GeneXpert Hub with preloaded GeneXpert Xpress software for running the tests and viewing the test results. The GeneXpert Hub accessory integrates the computer, touchscreen monitor and barcode scanner. Each of the GeneXpert modules in the GeneXpert IV instrument can perform independent sample preparation and testing. The GeneXpert Xpress System requires the use of single-use disposable cartridges that hold the RT-PCR reagents and host sample purification, nucleic acid amplification, and detection of the target sequences. Because the cartridges are selfcontained, cross-contamination between samples is minimized. The Xpert Xpress CoV-2 plus test includes reagents for the detection of viral RNA from SARS-CoV-2 in NPS and NS specimens. The primers and probes in the Xpert Xpress CoV-2 plus test are designed to amplify and detect unique sequences in the genes that encode the following SARS-CoV-2 proteins: nucleocapsid (N2), envelope (E), and RNA-dependent RNA polymerase (RdRP). A Sample Processing Control (SPC) and a Probe Check Control (PCC) are also included in the cartridge serving as internal controls. The SPC is present to control for adequate processing of the sample and to monitor for the presence of potential inhibitor(s) in the RT-PCR reaction. The SPC also ensures that the RT-PCR reaction conditions (temperature and time) are appropriate for the amplification reaction and that the RT-PCR reagents are functional. The PCC verifies reagent rehydration, PCR tube filling, and confirms that all reaction components are present in the cartridge including monitoring for probe integrity and dye stability. The Xpert Xpress CoV-2 plus test is designed for use with NPS or NS specimen collected with nylon flocked swabs and placed into viral transport medium (VTM), Universal Transport Medium (UTM) or eNAT®.

Alinity m SARS-CoV-2 is a real-time in vitro reverse transcription polymerase chain reaction (RT-PCR) assay for use with the automated Alinity m System for the qualitative detection of nucleic acid from SARS-CoV-2 from patients with signs and symptoms of COVID-19 in nasopharyngeal (NP) swab and anterior nasal swab (ANS) specimens. Results are for the detection and identification of SARS-CoV-2 RNA. Alinity m SARS-CoV-2 assay is intended for use as an aid in the diagnosis of COVID-19 if used in comunction with other clinical, endemiologic, and laboratory findings. Positive results are indicative of the presence of SARS-CoV-2 RNA; clinical correlation with patient history and other diagnostic information is necessary to determine patient infection status. Positive results do not rule out bacterial infection or co-infection with other viruses. Negative results do not preclude SARS-CoV-2 infection and should not be used as the sole basis for patient management decisions. Negative results must be combined with clinical observations, patient history, and epidemiological information.

Alinity m SARS-CoV-2 is a real-time in vitro reverse transcription polymerase chain reaction (RT-PCR) assay for use with the automated Alinity m System for the qualitative detection of nucleic acid from SARS-CoV-2 in specimens collected from patients with signs and symptoms of COVID-19. The steps of the Alinity m SARS-CoV-2 assay consist of sample preparation, RT-PCR assembly, amplification/detection, and result reporting. All stages of the Alinity m SARS-CoV-2 assay procedure are executed automatically by the Alinity m System. No intermediate processing or transfer steps are performed by the user. The Alinity m System is designed to be a random-access analyzer that can perform the Alinity m SARS-CoV-2 assay in parallel with other Alinity m assays on the same instrument. The Alinity m SARS-CoV-2 assay requires two separate assay specific kits as follows: - . Alinity m SARS-CoV-2 AMP Kit; 09N78-096 is comprised of 2 types of multi-well trays: Alinity m SARS-CoV-2 AMP TRAY 1 and Alinity m SARS-CoV-2 ACT TRAY 2. The intended storage condition for the Alinity m SARS-CoV-2 AMP Kit is -15°C to -25°C. - Alinity m SARS-CoV-2 CTRL Kit: 09N78-086 consists of negative controls and . positive controls, each supplied as liguid in single-use tubes. The Alinity m SARS-CoV-2 controls are used for validity determination of the Alinity m SARS-CoV-2 assay on the automated Alinity m System. These controls are intended to be used with the Alinity m SARS-CoV-2 assay. The intended storage condition for the Alinity m SARS-CoV-2 Control Kit is -15°C to -25°C. The Alinity m SARS-CoV-2 assay may utilize the following for collection and transport of anterior nasal swab specimens: - Abbott Universal Collection Kit; 09N92-030 consists of one Transport Tube with a solid cap containing 1.65 mL Specimen Transport Buffer and one sterile Specimen Collection Swab. The Abbott Universal Collection Kit is intended for the collection and transport of anterior nasal swabs for testing with the Alinity m SARS-CoV-2 assay. The collected specimens are intended to be tested on the automated Alinity m System. The intended storage condition for the Abbott Universal Collection Kit is 15°C to 30°C. - Abbott Universal Collection Kit II: 09N92-040 consists of one Transport Tube with . a pierceable cap containing 1.65 mL Specimen Transport Buffer, one sterile Specimen Collection Swab, and one absorbent pad. The Abbott Universal Collection Kit II is intended for the collection and transport of anterior nasal swabs for testing with the Alinity m SARS-CoV-2 assay. The collected specimens are intended to be tested on the automated Alinity m System; The intended storage condition for the Abbott Universal Collection Kit is 15℃ to 30℃. SARS-CoV-2 RNA from specimens is extracted automatically on-board the Alinity m System using the Alinity m Sample Prep Kit 2, Alinity m Lysis Solution, and Alinity m Diluent Solution. The Alinity m System employs magnetic microparticle technology to facilitate nucleic acid capture, wash and elution. The resulting purified nucleic acids are then combined with the liquid unit-dose activation reagent, liquid unit-dose amplification reagents, and Alinity m Vapor Barrier Solution, and transferred by the instrument to an amplification/detection module for reverse transcription, PCR amplification, and realtime fluorescence detection. Assay controls are tested to help ensure that instrument and reagent performance remain satisfactory. During each control event, a negative control and a positive control are processed through sample preparation and RT- PCR procedures that are identical to those used for specimens. Assay controls are used to demonstrate proper sample processing and assay validity. Each Alinity m SARS-CoV-2 CTRL kit contains 12 vials (1.3 mL fill volume) of Negative Control and 12 vials (1.3 mL fill volume) of Positive Control. The Alinity m SARS-CoV-2 amplification reagents include primers and probes that amplify and detect an exogenous internal control (containing an armored RNA sequence). Amplification and detection of the internal control demonstrates proper sample processing. The internal control is used to demonstrate assay validity. Patient results are automatically reported on the Alinity m instrument. The Alinity m SARS-CoV-2 application parameters will be contained in an assay application specification file. The Alinity m SARS-CoV-2 assay also utilizes the following: - . Alinity m SARS-CoV-2 Assay Application Specification File, List No. 09N78-05A The Alinity m SARS-CoV-2 application specification file is intended for use with the Alinity m SARS-CoV-2 assay on the automated Alinity m System to allow for processing of assay controls and patient samples. - Alinity m System and System Software, List No. 08N53-002 • - Alinity m Sample Prep Kit 2, List No. 09N12-001 - Alinity m Tubes and Caps, List No. 09N49: - Alinity m Transport Tubes Pierceable Capped, List No. 09N49-010 - . Alinity m Transport Tube, List No. 09N49-011 - . Alinity m Pierceable Cap, List No. 09N49-012 - . Alinity m Aliquot Tube, List No. 09N49-013 - Alinity m System Solutions, List No. 09N20 • - . Alinity m Lysis Solution, List No. 09N20-001 - Alinity m Diluent Solution, List No. 09N20-003 - Alinity m Vapor Barrier Solution, List No. 09N20-004

The TaqPath™ COVID-19 Diagnostic PCR Kit is a real-time reverse transcription polymerase chain reaction (RT-PCR) test intended for the qualitative detection of nucleic acid from SARS-CoV-2 in nasopharyngeal and anterior nasal specimens from individuals with signs and symptoms of respiratory tract infection. The TaqPath™ COVID-19 Diagnostic PCR Kit is intended for use as an aid in the diagnosis of COVID-19 if used in conjunction with other clinical observations, epidemiological information and laboratory findings. The SARS-CoV-2 RNA is generally detectable in upper respiratory (anterior nasal and nasopharyngeal swabs) specimens during the acute phase of infection. Positive results are indicative of the presence of SARS-CoV-2 RNA. Positive results do not rule out bacterial infection or co-infection with other pathogens. The agent detected may not be the definite cause of disease. Negative results do not preclude SARS-CoV-2 infection and should not be used as the sole basis for patient management decisions. The TaqPath™ COVID-19 Diagnostic PCR Kit is intended for use by qualified clinical laboratory personnel specifically instructed and trained in the techniques of real-time PCR and in vitro diagnostic procedures.

The Applied BioSystems™ TaqPath™ COVID-19 Diagnostic PCR Kit (TaqPath™ COVID-19 Diagnostic PCR Kit) includes the assays and controls for a multiplex real-time RT-PCR test for the qualitative detection of RNA from SARS-CoV-2 in nasopharyngeal and anterior nasal specimens from individuals with signs and symptoms of respiratory tract infection. Each kit includes the following components: - Multiplexed assays that contain three primer/probe sets specific to different SARS-CoV-2 genomic regions and primers/probes for bacteriophage MS2 - MS2 Phage Control as an internal process control for nucleic acid extraction - TaqPath™ COVID-19 Diagnostic PCR Control as a positive RNA control that contains targets specific to the SARS-CoV-2 genomic regions targeted by the assays. The workflow begins with nucleic acid extraction from upper respiratory specimens (nasopharyngeal and anterior nasal swabs) that arrive in the testing site in transport media. Nucleic acids are isolated and purified from the specimens using the MagMAX™ Viral/Pathogen II Nucleic Acid Isolation Kit. Nucleic acid isolation is performed via an automated process using the KingFisher™ Flex Purification System. The nucleic acid is reverse transcribed into cDNA and amplified using the TaqPath™ COVID-19 Diagnostic PCR Kit and one of the following real-time PCR instruments: - Applied Biosystems™ 7500 Fast Dx Real-Time PCR Instrument - Applied Biosystems™ QuantStudio™ 5 Dx Real-Time PCR Instrument In the process, the probes anneal to three (3) specific SARS-CoV-2 target sequences located between three (3) unique forward and reverse primers for the following genes: - ORF1ab - N gene - S gene During the extension phase of the PCR cycle, the 5' nuclease activity of Taq polymerase degrades the probe, causing the reporter dye to separate from the quencher dye, generating a fluorescent signal. With each PCR cycle, additional reporter dye molecules are cleaved from their respective probes, increasing the fluorescent intensity, which is measured at each cycle by the real-time PCR instrument. Following RT-PCR, the data from the instrument's data collection software are imported into COVID-19 Interpretive Software IVD Edition for analysis and interpretation. After data import, the software analyzes the run data, performs quality check (QC) analysis, and calculates the interpretive results for each sample and control. The imported data and interpretive results for each run are saved as a batch in the software. Results can be exported as CSV files and reports can be generated in PDF format. Validation of the results is performed automatically by the COVID-19 Interpretive Software based on performance of the positive and negative controls. The following results are automatically generated using the calling rules, plate validity and the CT cutoff values for assay targets: | ORF1ab | N gene | S gene | MS2 | Status | Result | Action | |--------|-----------------------------------------|--------|---------------|--------|----------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | NEG | NEG | NEG | NEG | INVALID | NA | RETEST<br>Repeat test by re-extracting the<br>original sample and repeating the RT-PCR. If the<br>repeat result remains invalid, consider<br>collecting a new specimen. | | NEG | NEG | NEG | POS | VALID | SARS-CoV-2<br>Not Detected | REPORT<br>Report the results to the healthcare<br>provider. | | | Only one SARS-CoV-2 target<br>= POS | | POS or<br>NEG | VALID | SARS-CoV-2<br>Inconclusive | RETEST/REPORT<br>1. Repeat the test by re-extracting the<br>original sample and repeating the<br>RT-PCR.<br>IMPORTANT! Samples with a<br>result of SARS-CoV-2 Inconclusive<br>shall be retested one time.<br>2. After retesting one time, report the<br>results to the healthcare provider.<br>3. If the repeat result remains<br>inconclusive, the healthcare<br>provider should conduct additional<br>confirmation testing with a new<br>specimen, if clinically indicated. | | | Two or more SARS-CoV-2 targets<br>= POS | | POS or<br>NEG | VALID | Positive SARS-<br>CoV-2 | REPORT<br>Report the results to the healthcare<br>provider. | A minimum of one negative control and one positive control must be present for each run. Additional negative control wells shall be run for each extraction that is represented on a realtime RT-PCR plate. All control wells must pass for the real-time RT-PCR plate to be considered valid. Recommended actions of retest or report are also provided depending on the results generated.

The Xpert Xpress CoV-2 plus test, performed on the GeneXpert Infinity Systems, is a rapid real-time RT-PCR test intended for the qualitative detection of SARS-CoV-2 RNA in nasopharyngeal and anterior nasal swab specimens collected from individuals with signs and symptoms of respiratory tract infection. The Xpert Xpress CoV-2 plus test is intended for use as an aid in the diagnosis of COVID-19 if used in conjunction with other clinical, epidemiologic, and laboratory findings. Positive results are indicative of the presence of SARS-CoV-2 RNA. Positive results do not rule out bacterial infection or co-infection with other pathogens. Negative results do not preclude SARS-CoV-2 infection. The results of this test should not be used as for diagnosis and patient management decisions.

The Xpert Xpress CoV-2 plus test is a rapid, automated in vitro diagnostic test for the qualitative detection of viral RNA from SARS-CoV-2 in nasopharyngeal swab (NPS) and anterior nasal swab (NS) specimens obtained from individuals with signs and symptoms of respiratory tract infection. The Xpert Xpress CoV-2 plus test is performed on the Cepheid GeneXpert® Instrument Systems (GeneXpert Dx, GeneXpert Infinity-48s and GeneXpert Infinity-80 systems), which consist of an instrument, computer and preloaded software for running tests and viewing the results. The GeneXpert Instrument Systems automate and integrate sample preparation, nucleic acid extraction and amplification, and detection of the target sequences in simple or complex samples using real-time reverse transcription (RT)-polymerase chain reaction (PCR) and PCR assays. Depending on the instrument, the GeneXpert Instrument Systems can have from 1 and up to 80 randomly accessible modules, each capable of performing separate sample preparation and real-time RT-PCR and PCR tests. Each module contains a syringe drive for dispensing fluids (i.e., the syringe drive activates the plunger that works in concert with the rotary valve in the cartridge to move fluids between chambers), an ultrasonic horn for lysing cells or spores, and a proprietary I-CORE® thermocycler for performing real-time RT-PCR and PCR as well as detection. The systems require the use of single-use disposable cartridges that hold the RT-PCR reagents and host sample purification, nucleic acid amplification, and detection of the target sequences. Because the cartridges are selfcontained, cross-contamination between cartridges during the testing process is minimized. The Xpert Xpress CoV-2 plus test includes reagents for the detection of viral RNA from SARS-CoV-2 in NPS and NS specimens. The primers and probes in the Xpert Xpress CoV-2 plus test are designed to amplify and detect sequences in the genes that encode the following SARS-CoV-2 proteins: nucleocapsid (N2), envelope (E), and RNA-dependent RNA polymerase (RdRP). A Sample Processing Control (SPC) and a Probe Check Control (PCC) are also included in the cartridge utilized by the GeneXpert instrument. The SPC is present to control for adequate processing of the sample and to monitor for the presence of potential inhibitor(s) in the RT-PCR reaction. The SPC also ensures that the RT-PCR reaction conditions (temperature and time) are appropriate for the amplification reaction and that the RT-PCR reagents are functional. The PCC verifies reagent rehydration. PCR tube filling, and confirms that all reaction components are present in the cartridge including monitoring for probe integrity and dve stability. The Xpert Xpress CoV-2 plus test is designed for use with NPS or NS specimen collected with nylon flocked swabs and placed into a viral transport medium (VTM), Universal Transport Medium (UTM) or eNAT®.

cobas® SARS-CoV-2 Qualitative for use on the cobas® 5800/6800/8800 Systems is a real-time RT-PCR test intended for the qualitative detection of nucleic acids from SARS-CoV-2 in nasal and nasopharyngeal specimens collected from symptomatic individuals suspected of COVID-19 by their healthcare provider. Results are for the detection of SARS-CoV-2 RNA. Positive results are indicative of the presence of SARS-CoV-2 RNA; clinical correlation with patient history and other diagnostic information is necessary to determine patient infection status. Positive results do not rule out bacterial infection or co-infection with other pathogens. Negative results do not preclude SARS-CoV-2 infection and should not be used as the sole basis for patient management decisions. Results are meant to be used in conjunction with clinical observations, patient history, recent exposures and epidemiological information, and laboratory data, in accordance with the guidelines provided by the relevant public health authorities. cobas® SARS-CoV-2 Qualitative is intended for use by qualified clinical laboratory personnel specifically instructed and trained in the techniques of real-time PCR and on the use of the cobas® 5800/6800/8800 Systems.

cobas® SARS-CoV-2 Qualitative is based on fully automated sample preparation (nucleic acid extraction and purification) followed by PCR amplification and detection. The cobas® 5800 System is designed as one integrated instrument. The cobas® 6800/8800 Systems consist of the sample supply module, the transfer module, the processing module, and the analytic module. Automated data management is performed by the cobas® 5800 or cobas® 6800/8800 Systems software(s), which assigns test results for all tests. Results can be reviewed directly on the system screen, and printed as a report. Nucleic acid from patient samples and added internal control RNA (RNA IC) molecules are simultaneously extracted. Nucleic acid is released by addition of proteinase and lysis reagent to the sample. The released nucleic acid binds to the silica surface of the added magnetic glass particles. Unbound substances and impurities, such as denatured protein, cellular debris and potential PCR inhibitors, are removed with subsequent wash steps and purified nucleic acid is eluted from the magnetic glass particles with elution buffer at elevated temperature. External controls (positive and negative) are processed in the same way. Selective amplification of target nucleic acid from the sample is achieved by the use of targetspecific forward and reverse primers for ORF1 a/b non-structural region that is unique to SARS-CoV-2. Additionally, a conserved region in the structural protein envelope E-gene were chosen for pan-Sarbecovirus detection. The pan-Sarbecovirus detection sets will also detect SARS-CoV-2 virus. Selective amplification of RNA Internal Control is achieved by the use of non-competitive sequence specific forward and reverse primers which have no homology with the coronavirus genome. A thermostable DNA polymerase enzyme is used for amplification. The cobas® SARS-CoV-2 Qualitative master mix contains detection probes which are specific for the coronavirus type SARS-CoV-2, members of the Sarbecovirus subgenus, and the RNA Internal Control nucleic acid. The coronavirus and RNA Internal Control detection probes are each labeled with unique fluorescent dyes that act as a reporter. Each probe also has a second dye which acts as a quencher. When not bound to the target sequence, the fluorescent signals of the intact probes are suppressed by the quencher dye. During the PCR amplification step, hybridization of the probes to the specific single-stranded DNA template results in cleavage of the probe by the 5' to 3' exonuclease activity of the DNA polymerase resulting in separation of the reporter and quencher dyes and the generation of a fluorescent signal. With each PCR cycle, increasing amounts of cleaved probes are generated and the cumulative signal of the reporter dye increases concomitantly. Each reporter dye is measured at defined wavelengths, which enables simultaneous detection and discrimination of the amplified coronavirus target and the RNA Internal Control. The master mix includes deoxyuridine triphosphate (dUTP), instead of deoxythimidine triphosphate (dTTP), which is incorporated into the newly synthesized DNA (amplicon). Any contaminating amplicons from previous PCR runs are destroyed by the AmpErase enzyme [uracil-N-glycosylase], which is included in the PCR mix, when heated in the first thermal cycling step. However, newly formed amplicons are not destroyed since the AmpErase enzyme is inactivated once exposed to temperatures above 55°C.

cobas SARS-CoV-2 Qualitative for use on the cobas 6800/8800 Systems is a real-time RT-PCR test intended for the qualitative detection of nucleic acids from SARS-CoV-2 in nasal and nasopharyngeal specimens collected from symptomatic individuals suspected of COVID-19 by their healthcare provider. Results are for the detection of SARS-CoV-2 RNA. Positive results are indicative of the presence of SARS-CoV-2 RNA; clinical correlation with patient history and other diagnostic information is necessary to determine patient infection status. Positive results do not rule out bacterial infection or co-infection with other pathogens. Negative results do not preclude SARS-CoV-2 infection and should not be used as the sole basis for patient management decisions. Results are meant to be used in conjunction with clinical observations, patient history, recent exposures and epidemiological information, and laboratory data, in accordance with the guidelines provided by the relevant public health authorities. cobas SARS-CoV-2 is intended for use by qualified clinical laboratory personnel specifically instructed and trained in the techniques of real-time PCR and on the use of the cobas 6800/8800 Systems.

cobas SARS-CoV-2 Qualitative is based on fully automated sample preparation (nucleic acid extraction and purification) followed by PCR amplification and detection. The cobas 6800/8800 Systems consist of the sample supply module, the transfer module, the processing module, and the analytic module. Automated data management is performed by the cobas 6800/8800 Systems software(s), which assigns test results for all tests. Results can be reviewed directly on the system screen and printed as a report. Nucleic acid from patient samples and added internal control RNA (RNA IC) molecules are simultaneously extracted. Nucleic acid is released by addition of proteinase and lysis reagent to the sample. The released nucleic acid binds to the silica surface of the added magnetic glass particles. Unbound substances and impurities, such as denatured protein, cellular debris and potential PCR inhibitors, are removed with subsequent wash steps and purified nucleic acid is eluted from the magnetic glass particles with elution buffer at elevated temperature. External controls (positive and negative) are processed in the same way. Selective amplification of target nucleic acid from the sample is achieved by the use of target-specific forward and reverse primers for ORF1 a/b non-structural region that is unique to SARS-CoV-2. Additionally, a conserved region in the structural protein envelope E-gene were chosen for pan-Sarbecovirus detection. The pan-Sarbecovirus detection sets will also detect SARS-CoV-2 virus. Selective amplification of RNA Internal Control is achieved by the use of non-competitive sequence specific forward and reverse primers which have no homology with the coronavirus genome. A thermostable DNA polymerase enzyme is used for amplification. The cobas SARS-CoV-2 Qualitative master mix contains detection probes which are specific for the coronavirus type SARS-CoV-2, members of the Sarbecovirus subgenus, and the RNA Internal Control nucleic acid. The coronavirus and RNA Internal Control detection probes are each labeled with unique fluorescent dyes that act as a reporter. Each probe also has a second dye which acts as a quencher. When not bound to the target sequence, the fluorescent signals of the intact probes are suppressed by the quencher dye. During the PCR amplification step, hybridization of the probes to the specific single-stranded DNA template results in cleavage of the probe by the 5' to 3' exonuclease activity of the DNA polymerase resulting in separation of the reporter and quencher dyes and the generation of a fluorescent signal. With each PCR cycle, increasing amounts of cleaved probes are generated and the cumulative signal of the reporter dye increases concomitantly. Each reporter dye is measured at defined wavelengths, which enables simultaneous detection and discrimination of the amplified coronavirus target and the RNA Internal Control. The master mix includes deoxyuridine triphosphate (dUTP), instead of deoxythimidine triphosphate (dTTP), which is incorporated into the newly synthesized DNA (amplicon). Any contaminating amplicons from previous PCR runs are destroyed by the AmpErase enzyme [uracil-N-glycosylase], which is included in the PCR mix, when heated in the first thermal cycling step. However, newly formed amplicons are not destroyed since the AmpErase enzyme is inactivated once exposed to temperatures above 55℃.

The DiaSorin Molecular Simplexa™ COVID-19 Direct is real-time RT-PCR assay intended for use on the LIAISON® MDX instrument for the in vitro qualitative detection of nucleic acid from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in nasopharyngeal swabs (NPS) and nasal swabs (NS) from symptomatic individuals suspected of COVID 19 by their healthcare provider. The Simplexa™ COVID-19 Direct assay is an aid in the diagnosis of SARS-CoV-2 infection. Positive results are indicative of the presence of SARS-CoV-2 RNA. Clinical correlation with patient history and other diagnostic information is necessary to determine patient infection status. Positive results do not rule out co-infection with other pathogens. Negative results do not preclude SARS-CoV-2 infection and should not be used as tor patient management decisions. Results are meant to be used in conjunction with other clinical, epidemiologic, and laboratory data, in accordance with the guidelines provided by the relevant public health authorities.

The Simplexa COVID-19 Direct is a real-time RT-PCR (rRT-PCR) system that enables the direct amplification and detection of SARS-CoV-2 (COVID-19) RNA from nasopharyngeal swab or nasal swab that has not undergone nucleic acid extraction. The system consists of the Simplexa COVID-19 Direct reaction mix, the LIAISON MDX (with LIAISON MDX Studio Software), the Direct Amplification Disc and associated accessories. The assay uses forward and reverse primers and associated fluorescent probe(s) included in the reaction mix to amplify SARS-CoV-2 cDNA reverse transcribed from RNA. The primers and probe sets are designed to detect SARS-CoV-2 ORF 1ab and S gene from the viral RNA in nasopharyngeal swab or nasal swab. An RNA internal control, with associated primers and a fluorescent probe, is included in the reaction mix to detect RT-PCR failure and/or inhibition.

The BioFire® COVID-19 Test 2 is a qualitative nested multiplexed RT-PCR in vitro diagnostic test intended for use with the BioFire® FilmArray® 2.0 and BioFire® FilmArray® Torch Systems. The BioFire COVID-19 Test 2 detects nucleic acids from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in nasopharyngeal swabs (NPS) from symptomatic individuals suspected of COVID-19 by their healthcare provider. Results are for the identification of SARS-CoV-2 RNA. The SARS-CoV-2 RNA is generally detectable in NPS specimens during the acute phase of infection. Positive results are indicative of the presence of SARS-CoV-2 RNA; clinical correlation with patient history and other diagnostic information is necessary to determine patient infection status. Positive results do not rule out co-infection with other pathogens. Results are meant to be used in conjunction with other clinical, epidemiologic, and laboratory data, in accordance with the guidelines provided by the relevant public health authorities. The BioFire COVID-19 Test 2 is intended for use by trained medical and laboratory professionals in a laboratory setting or under the supervision of a trained laboratory professional. For In Vitro Diagnostic Use.

The BioFire COVID-19 Test 2 is a multiplexed nucleic acid-based test for the detection of SARS-CoV-2 RNA from nasopharyngeal swabs (NPS) eluted in either transport medium or saline. The test was originally described and cleared in K211079. The BioFire COVID-19 Test 2 uses BioFire FilmArray technology and is for use with BioFire FilmArray 2.0 and BioFire FilmArray Torch instruments. Once the sample is injected into the FilmArray pouch is loaded into the Film Array instrument which performs all aspects of testing including nucleic acid extraction, reverse-transcription, and nested PCR with melt analysis. The currently cleared version of the test uses three SARS-CoV-2 assays and returns a 'SARS-CoV-2 Detected' call if one or more of the SARS-CoV-2 assays are positive. The purpose of this submission is to display results for four additional SARS-CoV-2 assays which are currently present on the test, but for which results are masked through software. The assays are being unmasked as a mitigation against the risk of future SARS-CoV-2 variants affecting the sensitivity of the BioFire COVID-19 Test 2 due to mutations in assay primer regions. Note that to date BioFire Defense has not identified any variants that are predicted to affect the performance of the three-assay version of BioFire COVID-19 Test 2 described in K211079. These changes are being requested preemptively. The calling scheme when using the seven total SARS-CoV-2 assays will remain unchanged: one or more positive SARS-CoV-2 assay results will return an overall 'SARS-CoV-2 Detected' result.