COVID-19 Antigen Rapid Test Results - How do I
COVID-19 Antigen Rapid Test Cassette Structure The COVID-19 Antigen test cassette is coated with two lines (control line and the test line). If the specimen contains SARS-CoV-2 antigens, they will bind to the SARS-CoV-2 antibodies coated on the (T) Test line region and generate a colored line on the test strip, indicating a positive result.
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