One colored line should appear in the control line region (C). No line appears in either IgG or IgM test line regions.
| One colored line should appear in the control line region (C), and a colored line appears in IgM test line region. The result is positive for COVID-19 virus IgM.
| One colored line should always appear in the control line region(C), and two-colored lines should appear in IgG test line region and IgM test lineregion respectively. This result is positive for IgG&IgM antibodies to COVID-19 virus.
| One colored line should appear in the control line region(C), and a colored line appears in IgG test line region. The result is positive for COVID-19 virus IgG.
| Control line fails to appear. Review the procedure and repeat the procedure with a new test cassette.
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