Dengue Ns 1 Antigen ELISA

A positive NS1 test result is indicative of a dengue virus infection. A negative NS1 test result does not rule out infection. People with negative NS1 and negative or unavailable RT-PCR test results should be tested for the presence of dengue IgM antibodies to determine possible recent dengue exposure.

The normal range of dengue NS1 Antigen Test is 0.5-5 ng/mL. The results are either positive or negative. The positive results indicate the virus is present. However, additional tests may require to confirm the diagnosis (depending on your condition).

It has been shown previously that a dengue NS1 antigen level of more than 600 ng/ml in the first 72 h was associated with the development of DHF 9. In addition, patients with DHF have been shown to have higher viral loads and a delay in clearance of the virus 35, 36.