3 Tests for Dengue Fever Diagnosis

3 Tests for Dengue Fever Diagnosis This article was professionally reviewed by Ms. Tran Thi Vuong, Master of Science, Medical Doctor. This test detects the NS1 antigen of the Dengue virus in the blood. High sensitivity in the early stages of the disease (from the first to the fifth day). Can detect the virus even when antibodies are not yet present. Sensitivity decreases after the 5th day of the disease. 1. Dengue NS1 Antigen Test: False positives can occur in patients with other infections or a history of Dengue virus infection. 1. Dengue NS1 Antigen Test: High sensitivity in the early stages of the disease (from the first to the fifth day). Can detect the virus even when antibodies are not yet present. Advantages: Sensitivity decreases after the 5th day of the disease. False positives can occur in patients with other infections or a history of Dengue virus infection. Disadvantages: This test detects IgM antibodies against the Dengue virus in the blood. High sensitivity in the acute phase of the disease (from the 5th to the 14th day). Helps identify a first-time Dengue infection. Difficult to detect in the early stages of the disease. 2. IgM Antibody Test: False positives can occur in patients with a history of Dengue virus infection. 2. IgM Antibody Test: High sensitivity in the acute phase of the disease (from the 5th to the 14th day). Helps identify a first-time Dengue infection. Advantages: Difficult to detect in the early stages of the disease. False positives can occur in patients with a history of Dengue virus infection. Disadvantages: This test detects IgG antibodies against the Dengue virus in the blood. Can detect Dengue infection long after infection (can last several years). Helps identify a second or multiple Dengue infections. Not diagnostic in the acute phase of the disease. 3. IgG Antibody Test: Can detect Dengue infection long after infection (can last several years). Helps identify a second or multiple Dengue infections. Advantages: Not diagnostic in the acute phase of the disease. Note: Dengue fever diagnosis tests should be performed at specialized medical facilities. Test results should be combined with clinical symptoms to make an accurate diagnosis. Patients should follow their doctor's treatment instructions. Disadvantages: In addition to the 3 tests above, other tests such as PCR, ELISA can also be used to diagnose dengue fever. To prevent dengue fever, people should practice mosquito control measures such as mosquito eradication, sleeping under mosquito nets, and environmental hygiene. Additional Information: If you suspect you have dengue fever, you should go to the nearest medical facility for examination and prompt treatment. Additional Information: