Table 3.

Summary of most recent Emergency Use Authorization (EUA) issued antigen tests for SARS-CoV-2. All the information is collected from the Food, Drug and Administration (FDA) website.

Organization	Test Name	Test Result Time	Specimen Type	LOD	Characteristics
Access Bio, Inc.	CareStart COVID-19 Antigen test	10 min	Direct Nasopharyngeal Swab	8 × 102 TCID50/mL	SARS-CoV-2 Nucleocapsid Protein-Specific, Lateral Flow, Visual Readout, Lab-based, Point-of-Care Testing (POC) but requires a sample preparation step and a trained operator to perform the test.
Quidel Corporation	Sofia 2 Flu + SARS Antigen FIA	15 min	Direct Nasal or Nasopharyngeal Swabs	4.17 × 105 TCID50/mL	Mulitiplex Detection (SARS-CoV-2, Influenza A Virus, and Influenza B Virus), Nucleocapsid Protein-Specific, SARS-CoV, and SARS-CoV-2 Detection but cannot differentiate between them, Lateral Flow, Instrument-based Immunofluorescence Read, Lab-based, POC Testing but is limited to Sofia 2 Instrument for results, Trained Operator required.
Abbott Diagnostics Scarborough, Inc.	BinaxNOW COVID-19 Ag Card	15 min	Direct Nasal Swab	22.5 TCID50/swab	Singleplex SARS-CoV-2 Detection, No Specific to SARS-CoV-2 Detection alone (SARS-CoV Cross-reaction), Nucleocapsid Protein-Specific, Lateral Flow Immunoassay, Visual Colorimetric Pink/Purple Read but results interpretation is limited to individuals with color-impaired vision, POCT Testing but testing performance is limited by following meticulous testing instructions.
Lumira Dx UK Ltd.	Lumira Dx SARS-CoV-2 Ag Test	12 min	Direct Nasal Swab	32 TCID50/mL	Single-Use Microfluidic Fluorescence Immunoassay, SARS-CoV-2 Nucleocapsid Protein-Specific, Digital Instrument Read, Small Sample Testing Volume (one drop), POC Testing but limited to Healthcare Professional-Use-Only proficient in performing tests using the Lumira Dx Platform, Requires Lumira Dx Test Strip.
Becton, Dickinson, and Company (BD)	BD Veritor System for Rapid SARS-CoV-2 Detection	15 min	Direct Nasal Swab	1.4 × 102 TCID50/mL	Chromatographic Immunoassay, SARS-CoV-2 Nucleocapsid Antigen-Specific, Digital Instrument Reading, Result Documentation Capabilities, Good Analytical Sensitivity, Laboratory-based, POC Testing but is limited to patient testing environments where test interpretation can only be done with the BD Veritor Plus Analyzer Instrument.
Quidel Corporation	Sofia SARS Antigen FIA	16 min	Direct Nasal or Nasopharyngeal Swabs	1.13 × 102 TCID50/mL	Immunofluorescent Sandwich Assay, Lateral Flow, Singleplex Detection, SARS-CoV or SARS-CoV-2 Nucleocapsid Antigen-Specific but does not differentiate between them, Instrument Reading, Good Analytical Sensitivity, Results Affected by High Viscous Samples, Result interpretation limited to trained clinical laboratory personnel proficient in performing tests using Sofia and Sofia 2 instruments.