The Dengue Antigen NS1, IgG & IgM test is done to diagnose fever especially if the fever

is experienced after travel to a tropical or subtropical area.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)