Can dengue test be done during the fever phase?

Yes, the Dengue ELISA test can and should be done during the fever phase of the illness, which is typically the first 3-7 days after symptom onset. During this phase, the viral load and NS1 antigen levels are highest, making it easier to detect the infection accurately. The IgM antibodies usually start to appear during this phase and are detectable by the ELISA test. Early testing during the fever phase allows for timely diagnosis, appropriate management, and monitoring for potential complications. If the initial test is negative but symptoms persist, repeat testing or additional diagnostic methods may be needed.