dengue infection: NS1 antigen, IgM antibodies, and IgG antibodies NS1 (Antigen Test) Marker detected: Dengue virus protein (NS1 antigen) Timing: Day 1 to Day 7 after symptoms start What it indicates: Early active infection Purpose: Best test for early diagnosis Advantage: Detects infection before antibodies form Note: Can cross-react with some other flaviviruses (e.g., yellow fever, West Nile) 🧬 IgM Antibodies Marker detected: Immunoglobulin M (IgM) Timing: Usually Day 3–5 onward What it indica
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dengue infection: NS1 antigen, IgM antibodies, and IgG antibodies NS1 (Antigen Test) Marker detected: Dengue virus protein (NS1 antigen) Timing: Day 1 to Day 7 after symptoms start What it indicates: Early active infection Purpose: Best test for early diagnosis Advantage: Detects infection before antibodies form Note: Can cross-react with some other flaviviruses (e.g., yellow fever, West Nile) 🧬 IgM Antibodies Marker detected: Immunoglobulin M (IgM) Timing: Usually Day 3–5 onward What it indica
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