Serology · Tropical Fever Panel
Dengue NS1 Antigen + IgM/IgG antibody panel — for rapid, accurate diagnosis of dengue fever at any stage of illness.
Dengue is caused by any of four serotypes of the Dengue virus (DENV 1–4), transmitted by the Aedes aegypti mosquito — a daytime biter that breeds in stagnant water around homes. Because the virus behaves differently at different stages of infection, no single test catches dengue at every point. That's why the dengue panel combines NS1 Antigen + IgM/IgG antibodies to maximise detection regardless of when testing occurs.
The NS1 glycoprotein is shed by the virus into the bloodstream in large amounts during the first 1–5 days of fever, making it the earliest detectable marker. Antibodies (IgM then IgG) rise from day 4–5 onwards. Alongside dengue serology, a CBC with platelet count is essential — a falling platelet count is the hallmark warning of dengue haemorrhagic fever.
| Test | Best Time to Test | What It Detects |
|---|---|---|
| NS1 Antigen | Day 1–5 of fever | Dengue viral protein — earliest marker |
| Dengue IgM | Day 4–5 onwards | Acute / recent infection antibody |
| Dengue IgG | Day 7+ or past infection | Past immunity or secondary infection |
| CBC + Platelet Count | At presentation & daily | Monitors severity — thrombocytopaenia |
Seek emergency care immediately if you have dengue and experience:
No fasting required. Bring records of when fever started — this determines which test is most appropriate. If you are on Day 1–5 of fever, NS1 is tested; if fever is Day 5 or later, antibody tests are more relevant.
Test Price at Velys Hospital
₹150
Inclusive of collection · Same-day report
Fever panel available · Infectious disease team · Same-day results · Ahmedabad