2024年5月14日 · NS1 antigen testing is recommended to determine dengue infections during the first 7 days of illness. A positive NS1 test result confirms dengue virus infection without providing serotype information.

2025年1月30日 · The presence of the dengue virus non-structural protein 1 (NS1) in blood (serum) during the first 7 days of illness is indicative of a current or recent dengue virus infection. Indications for use of commercial NS1 ELISA tests, and interpretation of positive NS1 ELISA test results may vary.

NS1 antigen test (nonstructural protein 1) is a test for dengue, introduced in 2006. It allows rapid detection on the first day of fever, before antibodies appear some 5 or more days later. [1] It has been adopted for use in some 40 nations. The method of detection is through enzyme-linked immunosorbent assay.

Dengue IgM antibody testing is recommended in combination with nucleic acid amplification tests (NAAT) or NS1 antigen tests during the first 7 days of illness. IgM levels are positive starting 4–5 days after onset of symptoms and continuing for approximately 12 weeks post symptom onset but may persist longer.

What is a Dengue NS1 Antigen Test? The NS1 dengue test is a specialised diagnostic tool that detects the presence of dengue nonstructural protein 1 (NS1) in human blood. This protein is released into the bloodstream during active dengue virus infection, making it an effective early marker for diagnosis.

Detection of the DV nonstructural protein 1 (NS1) has emerged as an alternative biomarker to both serologic and molecular based techniques for diagnosis of acute DV infection. NS1 antigenemia is detectable within 24 hours and up to 9 days following symptoms onset.

2021年12月20日 · What is the dengue NS1 test? NS1 is a conserved glycoprotein that is secreted by the dengue virus and it is transferred into the blood of the infected. During the early clinical phase of the disease, a high quantity of this protein is …

The Dengue NS1 test is a diagnostic blood test that detects the NS1 antigen, which is a non-structural protein produced by the dengue virus. NS1 is secreted into the bloodstream during the early stages of infection, often before the body produces detectable antibodies (IgM and IgG).

2014年11月20日 · Non-structural glycoprotein-1 (NS1) has proven to be a useful biomarker for early diagnosis of dengue. A number of rapid diagnostic tests (RDTs) and enzyme-linked immunosorbent assays (ELISAs) targeting NS1 antigen (Ag) are now commercially available.

Detection of the DV nonstructural protein 1 (NS1) has emerged as an alternative biomarker to both serologic and molecular based techniques for diagnosis of acute DV infection. NS1 antigenemia is detectable within 24 hours and up to 9 days following symptoms onset.