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Clinical sample detection results of anti-SARS-CoV-2 IgG (a) and IgM (b) by naked eyes; Analysis result of detection for IgG (c) and IgM (d) by GraphPad Prism 8. SARS-CoV-2, severe acute respiratory syndrome coronavirus 2. C: Control line; G: Test line for IgG detection; M: Test line for IgM detection.
