The nucleocapsid (N) is a major structural protein of SARS-CoV-2. It is highly conservative, providing an ideal marker for immunodiagnosis. Fapon self-developed monoclonal antibodies have high sensitivity, specificity, and batch-to-batch consistency, with no cross-reactivity with other pathogens (human coronaviruses, flu, pneumonia, etc.). Different application scenarios are supported with stable bulk commercial volume. The featured solution provides custom reagent development and bulk reagent component services, adding high values to diagnostic kit development.

• Validation completed in colloidal gold, immunofluorescence, ELISA, CLIA, and CMIA platforms 
• High activity, low detection limit
• No cross-reaction with respiratory tract positive samples
• Effective in testing the mainstream variants, Delta, Alpha, and others