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Positive:

At (15) minutes, the appearance of a reddish purple Control line (C position) and a reddish purple Test line (A, B or S) indicate that influenza A, B and/or SARS-CoV-2 antigen has been detected. Lines at the A and C positions indicate the presence of influenza type A viral antigen, lines at the B and C positions indicate the presence of influenza type B viral antigen and lines at the S and C positions indicate the presence of SARS-CoV-2 viral antigen in the specimen. A positive result does not rule out co-infections with other pathogens or identify any specific influenza A virus subtype. Any faint visible reddish-purple lines at A, B, and S with control line (Ctrl) should be read as positive.

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