What if dengue NS1 antigen is positive?

What if dengue NS1 antigen is positive?

A positive NS1 test result confirms dengue virus infection without providing serotype information. A negative NS1 test result does not rule out infection. People with negative NS1 results should be tested for the presence of dengue IgM antibodies to determine possible recent dengue exposure.

What does it mean if dengue IgG positive?

Positive IgM and IgG tests for dengue antibodies detected in an initial blood sample mean that it is likely that the person became infected with dengue virus within recent weeks. IgM antibody tests can be positive if a person has been infected with a similar virus, such as chikungunya (called cross-reaction).

How long is NS1 positive?

Positive test for DENV may mean that NS1 antigen is typically detectable within 1 to 2 days following infection and up to 9 days following symptom onset. NS1 antigen may also be detectable during secondary dengue virus infection, but for a shorter duration of time (1-4 days following symptom onset).

How long does dengue IgG stay positive?

In secondary dengue infections, IgG titers rise to extremely high levels (much higher than in primary infections) from the day 7 of fever to the next two weeks (9, 11). Anti-Dengue IgG antibodies persist for a long time even up to years (3, 12).

How is NS1 positive treated?

The NS1 antigen test is the most effective for early diagnosis of dengue infection. The main focus of treatment is to ensure that the patient gets adequate hydration. Acetaminophen (paracetamol) is used to manage the fever. If the symptoms are treated properly, the patient should recover in around two weeks.

Is dengue NS1 accurate?

Recently, the World Health Organization (WHO) has recommended the use of a rapid test to detect dengue NS1 antigen [1], as it is simple to use and can provide results within 30 minutes [13]. The accuracy of the NS1 antigen rapid test is considered high with sensitivity 55%-82% and specificity 97%-100%.

What is NS1 dengue?

Detection of the dengue virus nonstructural protein 1 (NS1) antigen is suggestive of recent exposure and/or acute infection with dengue virus. This test should be used for diagnostic purposes only. Dengue NS1 antigenemia overlaps with dengue virus viremia and can be used as an acute phase marker for infection.

What should we eat to increase platelets in dengue?

Foods that help increase platelets for people with dengue fever

• Some kind of fruit.
• Foods rich in vitamin C.
• Foods rich in folate.
• Foods rich in vitamin A.
• Foods rich in vitamin B12.
• Foods rich in omega-3 fatty acids.
• Foods Rich in Antioxidants.
• Foods rich in anti-inflammatory substances.

Can NS1 be false negative?

False-negative NS1 tests have been reported in dengue serotypes 2 and 4 infections. NS1 tests are also reported to be less sensitive in secondary dengue. Little is known about the causes of false-positive NS1 tests, except for possible cross-reactivity with other flaviviruses and possibly, cytomegalovirus (CMV).

How do you confirm dengue?

If an infection is suspected, you will get a blood test to check for the dengue virus. During a blood test, a health care professional will take a blood sample from a vein in your arm, using a small needle. After the needle is inserted, a small amount of blood will be collected into a test tube or vial.

Which fruit is best for dengue?

Papaya. For those who are suffering from dengue, Papaya leaves are the best option to go for. Just crush the papaya leaves and squeeze them to extract the juice. Its extract increases platelets counts to a great extent.

What is dengue NS1 IgG IgM?

Dengue Antigen NS1, IgG and IgM test detects the non-structural protein component (NS1) of the dengue virus and the antibodies (IgG & IgM) produced by the body in response to the infection. NS1 and IgM is secreted into the blood during dengue infection and are detectable within 3-4 days of illness.